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* [PATCH 4.14 000/293] 4.14.135-stable review
@ 2019-07-29 19:18 Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 001/293] MIPS: ath79: fix ar933x uart parity mode Greg Kroah-Hartman
                   ` (298 more replies)
  0 siblings, 299 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, torvalds, akpm, linux, shuah, patches,
	ben.hutchings, lkft-triage, stable

This is the start of the stable review cycle for the 4.14.135 release.
There are 293 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Wed 31 Jul 2019 07:05:01 PM UTC.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.135-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 4.14.135-rc1

Linus Torvalds <torvalds@linux-foundation.org>
    access: avoid the RCU grace period for the temporary subjective credentials

Michael Neuling <mikey@neuling.org>
    powerpc/tm: Fix oops on sigreturn on systems without TM

Gautham R. Shenoy <ego@linux.vnet.ibm.com>
    powerpc/xive: Fix loop exit-condition in xive_find_target_in_mask()

Hui Wang <hui.wang@canonical.com>
    ALSA: hda - Add a conexant codec entry to let mute led work

Kai-Heng Feng <kai.heng.feng@canonical.com>
    ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1

Kefeng Wang <wangkefeng.wang@huawei.com>
    hpet: Fix division by zero in hpet_time_div()

YueHaibing <yuehaibing@huawei.com>
    fpga-manager: altera-ps-spi: Fix build error

Hridya Valsaraju <hridya@google.com>
    binder: prevent transactions to context manager from its own process.

Zhenzhong Duan <zhenzhong.duan@oracle.com>
    x86/speculation/mds: Apply more accurate check on hypervisor platform

Hans de Goede <hdegoede@redhat.com>
    x86/sysfb_efi: Add quirks for some devices with swapped width and height

Qu Wenruo <wqu@suse.com>
    btrfs: inode: Don't compress if NODATASUM or NODATACOW set

Paolo Bonzini <pbonzini@redhat.com>
    KVM: nVMX: do not use dangling shadow VMCS after guest reset

Ryan Kennedy <ryan5544@gmail.com>
    usb: pci-quirks: Correct AMD PLL quirk detection

Phong Tran <tranmanphong@gmail.com>
    usb: wusbcore: fix unbalanced get/put cluster_id

Daniel Vetter <daniel.vetter@ffwll.ch>
    drm/crc-debugfs: Also sprinkle irqrestore over early exits

Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
    drm/crc: Only report a single overflow when a CRC fd is opened

Arnd Bergmann <arnd@arndb.de>
    locking/lockdep: Hide unused 'class' variable

Yuyang Du <duyuyang@gmail.com>
    locking/lockdep: Fix lock used or unused stats error

Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
    mm/mmu_notifier: use hlist_add_head_rcu()

Andy Lutomirski <luto@kernel.org>
    mm/gup.c: remove some BUG_ONs from get_gate_page()

Guenter Roeck <linux@roeck-us.net>
    mm/gup.c: mark undo_dev_pagemap as __maybe_unused

Christoph Hellwig <hch@lst.de>
    9p: pass the correct prototype to read_cache_page

Dmitry Vyukov <dvyukov@google.com>
    mm/kmemleak.c: fix check for softirq context

Sam Ravnborg <sam@ravnborg.org>
    sh: prevent warnings when using iounmap

Wenwen Wang <wenwen@cs.uga.edu>
    block/bio-integrity: fix a memory leak bug

Oliver O'Halloran <oohall@gmail.com>
    powerpc/eeh: Handle hugepages in ioremap space

morten petersen <morten_bp@live.dk>
    mailbox: handle failed named mailbox channel request

Ocean Chen <oceanchen@google.com>
    f2fs: avoid out-of-range memory access

Masahiro Yamada <yamada.masahiro@socionext.com>
    powerpc/boot: add {get, put}_unaligned_be32 to xz_config.h

YueHaibing <yuehaibing@huawei.com>
    PCI: dwc: pci-dra7xx: Fix compilation when !CONFIG_GPIOLIB

Konstantin Taranov <konstantin.taranov@inf.ethz.ch>
    RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM

Leo Yan <leo.yan@linaro.org>
    perf annotate: Fix dereferencing freed memory found by the smatch tool

Leo Yan <leo.yan@linaro.org>
    perf session: Fix potential NULL pointer dereference found by the smatch tool

Numfor Mbiziwo-Tiapo <nums@google.com>
    perf test mmap-thread-lookup: Initialize variable to suppress memory sanitizer warning

Vasily Gorbik <gor@linux.ibm.com>
    kallsyms: exclude kasan local symbols on s390

Geert Uytterhoeven <geert+renesas@glider.be>
    serial: sh-sci: Fix TX DMA buffer flushing and workqueue races

Geert Uytterhoeven <geert+renesas@glider.be>
    serial: sh-sci: Terminate TX DMA during buffer flushing

Liu, Changcheng <changcheng.liu@intel.com>
    RDMA/i40iw: Set queue pair state when being queried

Christian Lamparter <chunkeey@gmail.com>
    powerpc/4xx/uic: clear pending interrupt after irq type/pol change

Johannes Berg <johannes.berg@intel.com>
    um: Silence lockdep complaint about mmap_sem

Axel Lin <axel.lin@ingics.com>
    mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk

Arnd Bergmann <arnd@arndb.de>
    mfd: arizona: Fix undefined behavior

Robert Hancock <hancock@sedsystems.ca>
    mfd: core: Set fwnode for created devices

Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
    recordmcount: Fix spurious mcount entries on powerpc

Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
    powerpc/xmon: Fix disabling tracing while in xmon

Bastien Nocera <hadess@hadess.net>
    iio: iio-utils: Fix possible incorrect mask calculation

Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
    PCI: xilinx-nwl: Fix Multi MSI data programming

Nathan Chancellor <natechancellor@gmail.com>
    kbuild: Add -Werror=unknown-warning-option to CLANG_FLAGS

Marek Vasut <marek.vasut+renesas@gmail.com>
    PCI: sysfs: Ignore lockdep for remove attribute

Stefan Roese <sr@denx.de>
    serial: mctrl_gpio: Check if GPIO property exisits before requesting it

Sean Paul <seanpaul@chromium.org>
    drm/msm: Depopulate platform on probe failure

Alexey Kardashevskiy <aik@ozlabs.ru>
    powerpc/pci/of: Fix OF flags parsing for 64bit BARs

Andrzej Pietrasiewicz <andrzej.p@collabora.com>
    usb: gadget: Zero ffs_io_data

Serge Semin <fancer.lancer@gmail.com>
    tty: serial_core: Set port active bit in uart_port_activate

Douglas Anderson <dianders@chromium.org>
    drm/rockchip: Properly adjust to a true clock in adjusted_mode

Nathan Lynch <nathanl@linux.ibm.com>
    powerpc/pseries/mobility: prevent cpu hotplug during DT update

Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
    phy: renesas: rcar-gen2: Fix memory leak at error paths

David Riley <davidriley@chromium.org>
    drm/virtio: Add memory barriers for capset cache.

Rautkoski Kimmo EXT <ext-kimmo.rautkoski@vaisala.com>
    serial: 8250: Fix TX interrupt handling condition

Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
    tty: serial: msm_serial: avoid system lockup condition

Kefeng Wang <wangkefeng.wang@huawei.com>
    tty/serial: digicolor: Fix digicolor-usart already registered warning

Wang Hai <wanghai26@huawei.com>
    memstick: Fix error cleanup path of memstick_init

Daniel Vetter <daniel.vetter@ffwll.ch>
    drm/crc-debugfs: User irqsafe spinlock in drm_crtc_add_crc_entry

Jyri Sarha <jsarha@ti.com>
    drm/bridge: sii902x: pixel clock unit is 10kHz instead of 1kHz

Tomi Valkeinen <tomi.valkeinen@ti.com>
    drm/bridge: tc358767: read display_props in get_modes()

Alex Williamson <alex.williamson@redhat.com>
    PCI: Return error if cannot probe VF

Gen Zhang <blackgod016574@gmail.com>
    drm/edid: Fix a missing-check bug in drm_load_edid_firmware()

Christophe Leroy <christophe.leroy@c-s.fr>
    tty: serial: cpm_uart - fix init when SMC is relocated

Wen Yang <wen.yang99@zte.com.cn>
    pinctrl: rockchip: fix leaked of_node references

Serge Semin <fancer.lancer@gmail.com>
    tty: max310x: Fix invalid baudrate divisors calculator

Thinh Nguyen <Thinh.Nguyen@synopsys.com>
    usb: core: hub: Disable hub-initiated U1/U2

Peter Ujfalusi <peter.ujfalusi@ti.com>
    drm/panel: simple: Fix panel_simple_dsi_probe

Sunil Muthuswamy <sunilmut@microsoft.com>
    hvsock: fix epollout hang from race condition

Paul Menzel <pmenzel@molgen.mpg.de>
    nfsd: Fix overflow causing non-working mounts on 1 TB machines

J. Bruce Fields <bfields@redhat.com>
    nfsd: fix performance-limiting session calculation

J. Bruce Fields <bfields@redhat.com>
    nfsd: give out fewer session slots as limit approaches

J. Bruce Fields <bfields@redhat.com>
    nfsd: increase DRC cache limit

Trond Myklebust <trond.myklebust@primarydata.com>
    NFSv4: Fix open create exclusive when the server reboots

Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
    perf/events/amd/uncore: Fix amd_uncore_llc ID to use pre-defined cpu_llc_id

Kuo-Hsin Yang <vovoy@chromium.org>
    mm: vmscan: scan anonymous pages on file refaults

Theodore Ts'o <tytso@mit.edu>
    ext4: allow directory holes

Ross Zwisler <zwisler@chromium.org>
    ext4: use jbd2_inode dirty range scoping

Ross Zwisler <zwisler@chromium.org>
    jbd2: introduce jbd2_inode dirty range scoping

Ross Zwisler <zwisler@chromium.org>
    mm: add filemap_fdatawait_range_keep_errors()

Theodore Ts'o <tytso@mit.edu>
    ext4: enforce the immutable flag on open files

Darrick J. Wong <darrick.wong@oracle.com>
    ext4: don't allow any modifications to an immutable file

Paul Cercueil <paul@crapouillou.net>
    MIPS: lb60: Fix pin mappings

Chris Wilson <chris@chris-wilson.co.uk>
    dma-buf: Discard old fence_excl on retrying get_fences_rcu for realloc

Jérôme Glisse <jglisse@redhat.com>
    dma-buf: balance refcount inbalance

Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
    net: bridge: stp: don't cache eth dest pointer before skb pull

Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
    net: bridge: mcast: fix stale ipv6 hdr pointer when handling v6 query

Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
    net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling

Christoph Paasch <cpaasch@apple.com>
    tcp: Reset bytes_acked and bytes_received when disconnecting

Eric Dumazet <edumazet@google.com>
    tcp: fix tcp_set_congestion_control() use from bpf hook

Florian Westphal <fw@strlen.de>
    net: make skb_dst_force return true when dst is refcounted

Cong Wang <xiyou.wangcong@gmail.com>
    bonding: validate ip header before check IPPROTO_IGMP

Cong Wang <xiyou.wangcong@gmail.com>
    netrom: hold sock when setting skb->destructor

Cong Wang <xiyou.wangcong@gmail.com>
    netrom: fix a memory leak in nr_rx_frame()

Andreas Steinmetz <ast@domdv.de>
    macsec: fix checksumming after decryption

Andreas Steinmetz <ast@domdv.de>
    macsec: fix use-after-free of skb during RX

Peter Kosyh <p.kosyh@gmail.com>
    vrf: make sure skb->data contains ip header to make routing

Takashi Iwai <tiwai@suse.de>
    sky2: Disable MSI on ASUS P6T

David Howells <dhowells@redhat.com>
    rxrpc: Fix send on a connected, but unbound socket

Yang Wei <albin_yang@163.com>
    nfc: fix potential illegal memory access

John Hurley <john.hurley@netronome.com>
    net: openvswitch: fix csum updates for MPLS actions

Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
    net: neigh: fix multiple neigh timer scheduling

Baruch Siach <baruch@tkos.co.il>
    net: dsa: mv88e6xxx: wait after reset deactivation

Justin Chen <justinpopo6@gmail.com>
    net: bcmgenet: use promisc for unsupported filters

Matteo Croce <mcroce@redhat.com>
    ipv4: don't set IPv6 only flags to IPv4 addresses

Eric Dumazet <edumazet@google.com>
    igmp: fix memory leak in igmpv3_del_delrec()

Taehee Yoo <ap420073@gmail.com>
    caif-hsi: fix possible deadlock in cfhsi_exit_module()

Guilherme G. Piccoli <gpiccoli@canonical.com>
    bnx2x: Prevent ptp_task to be rescheduled indefinitely

Brian King <brking@linux.vnet.ibm.com>
    bnx2x: Prevent load reordering in tx completion processing

Andrey Ryabinin <aryabinin@virtuozzo.com>
    lib/strscpy: Shut up KASAN false-positives in strscpy()

Andrey Ryabinin <aryabinin@virtuozzo.com>
    compiler.h: Add read_word_at_a_time() function.

Andrey Ryabinin <aryabinin@virtuozzo.com>
    compiler.h, kasan: Avoid duplicating __read_once_size_nocheck()

Junxiao Bi <junxiao.bi@oracle.com>
    dm bufio: fix deadlock with loop device

Josua Mayer <josua@solid-run.com>
    dt-bindings: allow up to four clocks for orion-mdio

Josua Mayer <josua@solid-run.com>
    net: mvmdio: allow up to four clocks to be specified for orion-mdio

Lee, Chiasheng <chiasheng.lee@intel.com>
    usb: Handle USB3 remote wakeup for LPM enabled devices correctly

Szymon Janc <szymon.janc@codecoup.pl>
    Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug

Alexander Shishkin <alexander.shishkin@linux.intel.com>
    intel_th: msu: Fix single mode with disabled IOMMU

Dan Carpenter <dan.carpenter@oracle.com>
    eCryptfs: fix a couple type promotion bugs

Ravi Bangoria <ravi.bangoria@linux.ibm.com>
    powerpc/watchpoint: Restore NV GPRs while returning from exception

Christophe Leroy <christophe.leroy@c-s.fr>
    powerpc/32s: fix suspend/resume when IBATs 4-7 are used

Helge Deller <deller@gmx.de>
    parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1

Helge Deller <deller@gmx.de>
    parisc: Ensure userspace privilege for ptraced processes in regset functions

Ard Biesheuvel <ard.biesheuvel@linaro.org>
    crypto: caam - limit output IV to CBC to work around CTR mode DMA issue

Dexuan Cui <decui@microsoft.com>
    PCI: hv: Fix a use-after-free bug in hv_eject_device_work()

Steve Longerbeam <slongerbeam@gmail.com>
    gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM

Jan Harkes <jaharkes@cs.cmu.edu>
    coda: pass the host file in vma->vm_file on mmap

Dan Williams <dan.j.williams@intel.com>
    libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields

Aaron Armstrong Skomra <skomra@gmail.com>
    HID: wacom: correct touch resolution x/y typo

Aaron Armstrong Skomra <skomra@gmail.com>
    HID: wacom: generic: only switch the mode on devices with LEDs

Filipe Manana <fdmanana@suse.com>
    Btrfs: add missing inode version, ctime and mtime updates when punching hole

Filipe Manana <fdmanana@suse.com>
    Btrfs: fix fsync not persisting dentry deletions due to inode evictions

Filipe Manana <fdmanana@suse.com>
    Btrfs: fix data loss after inode eviction, renaming it, and fsync it

Mika Westerberg <mika.westerberg@linux.intel.com>
    PCI: Do not poll for PME if the device is in D3cold

Alexander Shishkin <alexander.shishkin@linux.intel.com>
    intel_th: pci: Add Ice Lake NNPI support

Kim Phillips <kim.phillips@amd.com>
    perf/x86/amd/uncore: Set the thread mask for F17h L3 PMCs

Kim Phillips <kim.phillips@amd.com>
    perf/x86/amd/uncore: Do not set 'ThreadMask' and 'SliceMask' for non-L3 PMCs

David Rientjes <rientjes@google.com>
    x86/boot: Fix memory leak in default_get_smp_config()

YueHaibing <yuehaibing@huawei.com>
    9p/virtio: Add cleanup path in p9_virtio_init

YueHaibing <yuehaibing@huawei.com>
    9p/xen: Add cleanup path in p9_trans_xen_init

Juergen Gross <jgross@suse.com>
    xen/events: fix binding user event channels to cpus

Damien Le Moal <damien.lemoal@wdc.com>
    dm zoned: fix zone state management race

Daniel Jordan <daniel.m.jordan@oracle.com>
    padata: use smp_mb in padata_reorder to avoid orphaned padata jobs

Lyude Paul <lyude@redhat.com>
    drm/nouveau/i2c: Enable i2c pads & busses during preinit

Radoslaw Burny <rburny@google.com>
    fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.

Jon Hunter <jonathanh@nvidia.com>
    arm64: tegra: Fix AGIC register range

Like Xu <like.xu@linux.intel.com>
    KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed

Ezequiel Garcia <ezequiel@collabora.com>
    media: coda: Remove unbalanced and unneeded mutex unlock

Boris Brezillon <boris.brezillon@collabora.com>
    media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom()

Hui Wang <hui.wang@canonical.com>
    ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine

Takashi Iwai <tiwai@suse.de>
    ALSA: seq: Break too long mutex context in the write loop

Mark Brown <broonie@kernel.org>
    ASoC: dapm: Adapt for debugfs API change

Christophe Leroy <christophe.leroy@c-s.fr>
    lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE

Trond Myklebust <trond.myklebust@hammerspace.com>
    pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error

Trond Myklebust <trond.myklebust@hammerspace.com>
    NFSv4: Handle the special Linux file open access mode

Emmanuel Grumbach <emmanuel.grumbach@intel.com>
    iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X

Emmanuel Grumbach <emmanuel.grumbach@intel.com>
    iwlwifi: pcie: don't service an interrupt that was masked

Jon Hunter <jonathanh@nvidia.com>
    arm64: tegra: Update Jetson TX1 GPU regulator timings

Krzysztof Kozlowski <krzk@kernel.org>
    regulator: s2mps11: Fix buck7 and buck8 wrong voltages

Hui Wang <hui.wang@canonical.com>
    Input: alps - fix a mismatch between a condition check and its comment

Nick Black <dankamongmen@gmail.com>
    Input: synaptics - whitelist Lenovo T580 SMBus intertouch

Hui Wang <hui.wang@canonical.com>
    Input: alps - don't handle ALPS cs19 trackpoint-only device

Grant Hernandez <granthernandez@google.com>
    Input: gtco - bounds check collection indent level

Wen Yang <wen.yang99@zte.com.cn>
    crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe

Cfir Cohen <cfir@google.com>
    crypto: ccp/gcm - use const time tag comparison.

Hook, Gary <Gary.Hook@amd.com>
    crypto: ccp - memset structure fields to zero before reuse

Eric Biggers <ebiggers@google.com>
    crypto: chacha20poly1305 - fix atomic sleep when using async algorithm

Elena Petrova <lenaptr@google.com>
    crypto: arm64/sha2-ce - correct digest for empty data in finup

Elena Petrova <lenaptr@google.com>
    crypto: arm64/sha1-ce - correct digest for empty data in finup

Hook, Gary <Gary.Hook@amd.com>
    crypto: ccp - Validate the the error value used to index error messages

Eric Biggers <ebiggers@google.com>
    crypto: ghash - fix unaligned memory access in ghash_setkey()

Finn Thain <fthain@telegraphics.com.au>
    scsi: mac_scsi: Fix pseudo DMA implementation, take 2

Finn Thain <fthain@telegraphics.com.au>
    scsi: mac_scsi: Increase PIO/PDMA transfer length threshold

Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
    scsi: megaraid_sas: Fix calculation of target ID

Ming Lei <ming.lei@redhat.com>
    scsi: core: Fix race on creating sense cache

Finn Thain <fthain@telegraphics.com.au>
    Revert "scsi: ncr5380: Increase register polling limit"

Finn Thain <fthain@telegraphics.com.au>
    scsi: NCR5380: Always re-enable reselection interrupt

Finn Thain <fthain@telegraphics.com.au>
    scsi: NCR5380: Reduce goto statements in NCR5380_select()

Juergen Gross <jgross@suse.com>
    xen: let alloc_xenballooned_pages() fail if not enough memory free

Denis Efremov <efremov@ispras.ru>
    floppy: fix out-of-bounds read in copy_buffer

Denis Efremov <efremov@ispras.ru>
    floppy: fix invalid pointer dereference in drive_name

Denis Efremov <efremov@ispras.ru>
    floppy: fix out-of-bounds read in next_valid_format

Denis Efremov <efremov@ispras.ru>
    floppy: fix div-by-zero in setup_format_params

Colin Ian King <colin.king@canonical.com>
    iavf: fix dereference of null rx_buffer pointer

Josua Mayer <josua@solid-run.com>
    net: mvmdio: defer probe of orion-mdio if a clock is not ready

Taehee Yoo <ap420073@gmail.com>
    gtp: fix use-after-free in gtp_newlink()

Taehee Yoo <ap420073@gmail.com>
    gtp: fix use-after-free in gtp_encap_destroy()

Taehee Yoo <ap420073@gmail.com>
    gtp: fix Illegal context switch in RCU read-side critical section.

Taehee Yoo <ap420073@gmail.com>
    gtp: fix suspicious RCU usage

csonsino <csonsino@gmail.com>
    Bluetooth: validate BLE connection interval updates

Taehee Yoo <ap420073@gmail.com>
    gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable()

Matias Karhumaa <matias.karhumaa@gmail.com>
    Bluetooth: Check state in l2cap_disconnect_rsp

Josua Mayer <josua.mayer@jm0.eu>
    Bluetooth: 6lowpan: search for destination address in all peers

Tomas Bortoli <tomasbortoli@gmail.com>
    Bluetooth: hci_bcsp: Fix memory leak in rx_skb

Geert Uytterhoeven <geert+renesas@glider.be>
    gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants

Phong Tran <tranmanphong@gmail.com>
    net: usb: asix: init MAC address buffers

Andi Kleen <ak@linux.intel.com>
    perf stat: Make metric event lookup more robust

Andrei Otcheretianski <andrei.otcheretianski@intel.com>
    iwlwifi: mvm: Drop large non sta frames

Wen Gong <wgong@codeaurora.org>
    ath10k: destroy sdio workqueue while remove sdio module

Yunsheng Lin <linyunsheng@huawei.com>
    net: hns3: add some error checking in hclge_tm module

Yonglong Liu <liuyonglong@huawei.com>
    net: hns3: fix a -Wformat-nonliteral compile warning

Coly Li <colyli@suse.de>
    bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush()

Eiichi Tsukata <devel@etsukata.com>
    EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec

Arnd Bergmann <arnd@arndb.de>
    crypto: asymmetric_keys - select CRYPTO_HASH where needed

Arnd Bergmann <arnd@arndb.de>
    crypto: serpent - mark __serpent_setkey_sbox noinline

Mauro S. M. Rodrigues <maurosr@linux.vnet.ibm.com>
    ixgbe: Check DDM existence in transceiver before access

Ferdinand Blomqvist <ferdinand.blomqvist@gmail.com>
    rslib: Fix handling of of caller provided syndrome

Ferdinand Blomqvist <ferdinand.blomqvist@gmail.com>
    rslib: Fix decoding of shortened codes

Marek Szyprowski <m.szyprowski@samsung.com>
    clocksource/drivers/exynos_mct: Increase priority over ARM arch timer

Tejun Heo <tj@kernel.org>
    libata: don't request sense data on !ZAC ATA devices

Kyle Meyer <kyle.meyer@hpe.com>
    perf tools: Increase MAX_NR_CPUS and MAX_CACHES

Miaoqing Pan <miaoqing@codeaurora.org>
    ath10k: fix PCIE device wake up failed

Claire Chang <tientzu@chromium.org>
    ath10k: add missing error handling

Julian Anastasov <ja@ssi.bg>
    ipvs: fix tinfo memory leak in start_sync_thread

Lorenzo Bianconi <lorenzo@kernel.org>
    mt7601u: fix possible memory leak when the device is disconnected

Masahiro Yamada <yamada.masahiro@socionext.com>
    x86/build: Add 'set -e' to mkcapflags.sh to delete broken capflags.c

Lorenzo Bianconi <lorenzo@kernel.org>
    mt7601u: do not schedule rx_tasklet when the device has been disconnected

Ping-Ke Shih <pkshih@realtek.com>
    rtlwifi: rtl8192cu: fix error handle when usb probe failed

Hans Verkuil <hverkuil@xs4all.nl>
    media: hdpvr: fix locking and a missing msleep

André Almeida <andrealmeid@collabora.com>
    media: vimc: cap: check v4l2_fill_pixfmt return value

Philipp Zabel <p.zabel@pengutronix.de>
    media: coda: increment sequence offset for the last returned frame

Marco Felsch <m.felsch@pengutronix.de>
    media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP

Philipp Zabel <p.zabel@pengutronix.de>
    media: coda: fix mpeg2 sequence number handling

Ard Biesheuvel <ard.biesheuvel@linaro.org>
    acpi/arm64: ignore 5.1 FADTs that are reported as 5.0

Nathan Huckleberry <nhuck@google.com>
    timer_list: Guard procfs specific code

Miroslav Lichvar <mlichvar@redhat.com>
    ntp: Limit TAI-UTC offset

Anders Roxell <anders.roxell@linaro.org>
    media: i2c: fix warning same module names

Marek Szyprowski <m.szyprowski@samsung.com>
    media: s5p-mfc: Make additional clocks optional

Julian Anastasov <ja@ssi.bg>
    ipvs: defer hook registration to avoid leaks

Arnd Bergmann <arnd@arndb.de>
    ipsec: select crypto ciphers for xfrm_algo

Pan Bian <bianpan2016@163.com>
    EDAC/sysfs: Fix memory leak when creating a csrow object

Denis Kirjanov <kda@linux-powerpc.org>
    ipoib: correcly show a VF hardware address

Jason Wang <jasowang@redhat.com>
    vhost_net: disable zerocopy by default

Arnaldo Carvalho de Melo <acme@redhat.com>
    perf evsel: Make perf_evsel__name() accept a NULL argument

Peter Zijlstra <peterz@infradead.org>
    x86/atomic: Fix smp_mb__{before,after}_atomic()

Qian Cai <cai@lca.pw>
    sched/fair: Fix "runnable_avg_yN_inv" not used warnings

Gao Xiang <gaoxiang25@huawei.com>
    sched/core: Add __sched tag for io_schedule()

Nicolas Dichtel <nicolas.dichtel@6wind.com>
    xfrm: fix sa selector validation

Tejun Heo <tj@kernel.org>
    blkcg, writeback: dead memcgs shouldn't contribute to writeback ownership arbitration

Aaron Lewis <aaronlewis@google.com>
    x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS

Waiman Long <longman@redhat.com>
    rcu: Force inlining of rcu_read_lock()

Valdis Kletnieks <valdis.kletnieks@vt.edu>
    bpf: silence warning messages in core

Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
    regmap: fix bulk writes on paged registers

Russell King <rmk+kernel@armlinux.org.uk>
    gpio: omap: ensure irq is enabled before wakeup

Russell King <rmk+kernel@armlinux.org.uk>
    gpio: omap: fix lack of irqstatus_raw0 for OMAP4

Eric Auger <eric.auger@redhat.com>
    iommu: Fix a leak in iommu_insert_resv_region

Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
    media: fdp1: Support M3N and E3 platforms

Thomas Richter <tmricht@linux.ibm.com>
    perf test 6: Fix missing kvm module load for s390

Mathieu Poirier <mathieu.poirier@linaro.org>
    perf cs-etm: Properly set the value of 'old' and 'head' in snapshot mode

Stefano Brivio <sbrivio@redhat.com>
    ipset: Fix memory accounting for hash types on resize

Robert Hancock <hancock@sedsystems.ca>
    net: sfp: add mutex to prevent concurrent state checks

Borislav Petkov <bp@suse.de>
    RAS/CEC: Fix pfn insertion

Julian Wiedmann <jwi@linux.ibm.com>
    s390/qdio: handle PENDING state for QEBSM devices

Robert Hancock <hancock@sedsystems.ca>
    net: axienet: Fix race condition causing TX hang

Fabio Estevam <festevam@gmail.com>
    net: fec: Do not use netdev messages too early

Biao Huang <biao.huang@mediatek.com>
    net: stmmac: dwmac4: fix flow control issue

Abhishek Goel <huntbag@linux.vnet.ibm.com>
    cpupower : frequency-set -r option misses the last cpu in related cpu list

Kefeng Wang <wangkefeng.wang@huawei.com>
    media: wl128x: Fix some error handling in fm_v4l2_init_video_device()

Imre Deak <imre.deak@intel.com>
    locking/lockdep: Fix merging of hlocks with non-zero references

David S. Miller <davem@davemloft.net>
    tua6100: Avoid build warnings.

Christophe Leroy <christophe.leroy@c-s.fr>
    crypto: talitos - Align SEC1 accesses to 32 bits boundaries.

Christophe Leroy <christophe.leroy@c-s.fr>
    crypto: talitos - properly handle split ICV.

Ioana Ciornei <ioana.ciornei@nxp.com>
    net: phy: Check against net_device being NULL

Shailendra Verma <shailendra.v@samsung.com>
    media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails.

Hans Verkuil <hverkuil@xs4all.nl>
    media: mc-device.c: don't memset __user pointer contents

Eric Biggers <ebiggers@google.com>
    fscrypt: clean up some BUG_ON()s in block encryption/decryption

Anirudh Gupta <anirudhrudr@gmail.com>
    xfrm: Fix xfrm sel prefix length validation

Jeremy Sowden <jeremy@azazel.net>
    af_key: fix leaks in key_pol_get_resp and dump_sp.

Eric W. Biederman <ebiederm@xmission.com>
    signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig

Michal Kalderon <michal.kalderon@marvell.com>
    qed: Set the doorbell address correctly

Jose Abreu <Jose.Abreu@synopsys.com>
    net: stmmac: dwmac4/5: Clear unused address entries

Jose Abreu <Jose.Abreu@synopsys.com>
    net: stmmac: dwmac1000: Clear unused address entries

Jungo Lin <jungo.lin@mediatek.com>
    media: media_device_enum_links32: clean a reserved field

Kangjie Lu <kjlu@umn.edu>
    media: vpss: fix a potential NULL pointer dereference

Lubomir Rintel <lkundrak@v3.sk>
    media: marvell-ccic: fix DMA s/g desc number calculation

Christophe Leroy <christophe.leroy@c-s.fr>
    crypto: talitos - fix skcipher failure due to wrong output IV

Daniel Gomez <dagmcr@gmail.com>
    media: spi: IR LED: add missing of table registration

Oliver Neukum <oneukum@suse.com>
    media: dvb: usb: fix use after free in dvb_usb_device_exit

Jeremy Sowden <jeremy@azazel.net>
    batman-adv: fix for leaked TVLV handler.

Anilkumar Kolli <akolli@codeaurora.org>
    ath: DFS JP domain W56 fixed pulse type 3 RADAR detection

Dan Carpenter <dan.carpenter@oracle.com>
    ath6kl: add some bounds checking

Tim Schumacher <timschumi@gmx.de>
    ath9k: Check for errors when reading SREV register

Surabhi Vishnoi <svishnoi@codeaurora.org>
    ath10k: Do not send probe response template for mesh

Gustavo A. R. Silva <gustavo@embeddedor.com>
    wil6210: fix potential out-of-bounds read

Sven Van Asbroeck <thesven73@gmail.com>
    dmaengine: imx-sdma: fix use-after-free on probe error path

Maurizio Lombardi <mlombard@redhat.com>
    scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported

Nathan Chancellor <natechancellor@gmail.com>
    arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly

Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
    MIPS: fix build on non-linux hosts

Stefan Hellermann <stefan@the2masters.de>
    MIPS: ath79: fix ar933x uart parity mode


-------------

Diffstat:

 Documentation/atomic_t.txt                         |   3 +
 .../devicetree/bindings/net/marvell-orion-mdio.txt |   2 +-
 Documentation/scheduler/sched-pelt.c               |   3 +-
 Makefile                                           |   5 +-
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi     |   3 +-
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           |   2 +-
 arch/arm64/crypto/sha1-ce-glue.c                   |   2 +-
 arch/arm64/crypto/sha2-ce-glue.c                   |   2 +-
 arch/arm64/kernel/acpi.c                           |  10 +-
 arch/arm64/kernel/image.h                          |   6 +-
 arch/mips/boot/compressed/Makefile                 |   2 +
 arch/mips/boot/compressed/calc_vmlinuz_load_addr.c |   2 +-
 arch/mips/include/asm/mach-ath79/ar933x_uart.h     |   4 +-
 arch/mips/jz4740/board-qi_lb60.c                   |  16 +-
 arch/parisc/kernel/ptrace.c                        |  31 +-
 arch/powerpc/boot/xz_config.h                      |  20 ++
 arch/powerpc/kernel/eeh.c                          |  15 +-
 arch/powerpc/kernel/exceptions-64s.S               |   9 +-
 arch/powerpc/kernel/pci_of_scan.c                  |   2 +
 arch/powerpc/kernel/signal_32.c                    |   3 +
 arch/powerpc/kernel/signal_64.c                    |   5 +
 arch/powerpc/kernel/swsusp_32.S                    |  73 +++-
 arch/powerpc/platforms/4xx/uic.c                   |   1 +
 arch/powerpc/platforms/powermac/sleep.S            |  68 +++-
 arch/powerpc/platforms/pseries/mobility.c          |   9 +
 arch/powerpc/sysdev/xive/common.c                  |   7 +-
 arch/powerpc/xmon/xmon.c                           |   6 +-
 arch/sh/include/asm/io.h                           |   6 +-
 arch/um/include/asm/mmu_context.h                  |   2 +-
 arch/x86/events/amd/uncore.c                       |  36 +-
 arch/x86/include/asm/atomic.h                      |   8 +-
 arch/x86/include/asm/atomic64_64.h                 |   8 +-
 arch/x86/include/asm/barrier.h                     |   4 +-
 arch/x86/include/asm/cpufeatures.h                 |   2 +
 arch/x86/kernel/cpu/bugs.c                         |   2 +-
 arch/x86/kernel/cpu/mkcapflags.sh                  |   2 +
 arch/x86/kernel/mpparse.c                          |  10 +-
 arch/x86/kernel/sysfb_efi.c                        |  46 +++
 arch/x86/kvm/pmu.c                                 |   4 +-
 arch/x86/kvm/vmx.c                                 |   8 +-
 block/bio-integrity.c                              |   8 +-
 crypto/asymmetric_keys/Kconfig                     |   3 +
 crypto/chacha20poly1305.c                          |  30 +-
 crypto/ghash-generic.c                             |   8 +-
 crypto/serpent_generic.c                           |   8 +-
 drivers/android/binder.c                           |   2 +-
 drivers/ata/libata-eh.c                            |   8 +-
 drivers/base/regmap/regmap.c                       |   2 +
 drivers/block/floppy.c                             |  34 +-
 drivers/bluetooth/hci_bcsp.c                       |   5 +
 drivers/char/hpet.c                                |   3 +-
 drivers/clocksource/exynos_mct.c                   |   4 +-
 drivers/crypto/amcc/crypto4xx_trng.c               |   1 -
 drivers/crypto/caam/caamalg.c                      |  15 +-
 drivers/crypto/ccp/ccp-dev.c                       |  96 +++---
 drivers/crypto/ccp/ccp-dev.h                       |   2 +-
 drivers/crypto/ccp/ccp-ops.c                       |  15 +-
 drivers/crypto/talitos.c                           |  35 +-
 drivers/dma-buf/dma-buf.c                          |   1 +
 drivers/dma-buf/reservation.c                      |   4 +
 drivers/dma/imx-sdma.c                             |  48 +--
 drivers/edac/edac_mc_sysfs.c                       |  24 +-
 drivers/edac/edac_module.h                         |   2 +-
 drivers/fpga/Kconfig                               |   1 +
 drivers/gpio/gpio-omap.c                           |  17 +-
 drivers/gpio/gpiolib.c                             |   6 +-
 drivers/gpu/drm/bridge/sii902x.c                   |   5 +-
 drivers/gpu/drm/bridge/tc358767.c                  |   7 +
 drivers/gpu/drm/drm_debugfs_crc.c                  |  18 +-
 drivers/gpu/drm/drm_edid_load.c                    |   2 +
 drivers/gpu/drm/msm/msm_drv.c                      |  14 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c     |  20 ++
 drivers/gpu/drm/panel/panel-simple.c               |   9 +-
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c        |   3 +-
 drivers/gpu/drm/virtio/virtgpu_ioctl.c             |   3 +
 drivers/gpu/drm/virtio/virtgpu_vq.c                |   2 +
 drivers/gpu/ipu-v3/ipu-ic.c                        |   2 +-
 drivers/hid/wacom_sys.c                            |   3 +
 drivers/hid/wacom_wac.c                            |   4 +-
 drivers/hid/wacom_wac.h                            |   1 +
 drivers/hwtracing/intel_th/msu.c                   |   2 +-
 drivers/hwtracing/intel_th/pci.c                   |   5 +
 drivers/infiniband/hw/i40iw/i40iw_verbs.c          |   2 +
 drivers/infiniband/sw/rxe/rxe_resp.c               |   5 +-
 drivers/infiniband/sw/rxe/rxe_verbs.h              |   1 +
 drivers/infiniband/ulp/ipoib/ipoib_main.c          |   1 +
 drivers/input/mouse/alps.c                         |  32 ++
 drivers/input/mouse/synaptics.c                    |   1 +
 drivers/input/tablet/gtco.c                        |  20 +-
 drivers/iommu/iommu.c                              |   8 +-
 drivers/mailbox/mailbox.c                          |   6 +-
 drivers/md/bcache/super.c                          |   2 +-
 drivers/md/dm-bufio.c                              |   4 +-
 drivers/md/dm-zoned-metadata.c                     |  24 --
 drivers/md/dm-zoned.h                              |  28 +-
 drivers/media/dvb-frontends/tua6100.c              |  22 +-
 drivers/media/i2c/Makefile                         |   2 +-
 drivers/media/i2c/{adv7511.c => adv7511-v4l2.c}    |   5 +
 drivers/media/media-device.c                       |  10 +-
 drivers/media/platform/coda/coda-bit.c             |   9 +-
 drivers/media/platform/coda/coda-common.c          |   2 +
 drivers/media/platform/davinci/vpss.c              |   5 +
 drivers/media/platform/marvell-ccic/mcam-core.c    |   5 +-
 drivers/media/platform/rcar_fdp1.c                 |   8 +
 drivers/media/platform/s5p-mfc/s5p_mfc_pm.c        |   5 +
 drivers/media/platform/vimc/vimc-capture.c         |   5 +-
 drivers/media/radio/wl128x/fmdrv_v4l2.c            |   3 +
 drivers/media/rc/ir-spi.c                          |   1 +
 drivers/media/usb/dvb-usb/dvb-usb-init.c           |   7 +-
 drivers/media/usb/hdpvr/hdpvr-video.c              |  17 +-
 drivers/media/v4l2-core/v4l2-ctrls.c               |   9 +-
 drivers/memstick/core/memstick.c                   |  13 +-
 drivers/mfd/arizona-core.c                         |   2 +-
 drivers/mfd/hi655x-pmic.c                          |   2 +
 drivers/mfd/mfd-core.c                             |   1 +
 drivers/net/bonding/bond_main.c                    |  37 +-
 drivers/net/caif/caif_hsi.c                        |   2 +-
 drivers/net/dsa/mv88e6xxx/chip.c                   |   2 +
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c    |   8 +-
 .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c    |   4 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c   |  33 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h  |   3 +
 drivers/net/ethernet/broadcom/genet/bcmgenet.c     |  57 ++--
 drivers/net/ethernet/freescale/fec_main.c          |   6 +-
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    |   3 +-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c  |   6 +-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c      |   6 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c   |   3 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h       |   1 +
 drivers/net/ethernet/marvell/mvmdio.c              |   7 +-
 drivers/net/ethernet/marvell/sky2.c                |   7 +
 drivers/net/ethernet/qlogic/qed/qed_dev.c          |  29 +-
 drivers/net/ethernet/qlogic/qed/qed_rdma.c         |   2 +-
 .../net/ethernet/stmicro/stmmac/dwmac1000_core.c   |   6 +
 drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c  |  18 +-
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c  |  20 +-
 drivers/net/gtp.c                                  |  36 +-
 drivers/net/macsec.c                               |   6 +-
 drivers/net/phy/phy_device.c                       |   6 +
 drivers/net/phy/sfp.c                              |   6 +-
 drivers/net/usb/asix_devices.c                     |   6 +-
 drivers/net/vrf.c                                  |  58 ++--
 drivers/net/wireless/ath/ath10k/hw.c               |   2 +-
 drivers/net/wireless/ath/ath10k/mac.c              |   4 +
 drivers/net/wireless/ath/ath10k/sdio.c             |   7 +
 drivers/net/wireless/ath/ath6kl/wmi.c              |  10 +-
 drivers/net/wireless/ath/ath9k/hw.c                |  32 +-
 drivers/net/wireless/ath/dfs_pattern_detector.c    |   2 +-
 drivers/net/wireless/ath/wil6210/txrx.c            |   1 +
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c        |   3 +
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c       |  61 ++--
 drivers/net/wireless/mediatek/mt7601u/dma.c        |  54 +--
 drivers/net/wireless/mediatek/mt7601u/tx.c         |   4 +-
 drivers/net/wireless/realtek/rtlwifi/usb.c         |   5 +-
 drivers/nvdimm/dax_devs.c                          |   2 +-
 drivers/nvdimm/pfn.h                               |   1 +
 drivers/nvdimm/pfn_devs.c                          |  18 +-
 drivers/pci/dwc/pci-dra7xx.c                       |   1 +
 drivers/pci/host/pci-hyperv.c                      |  15 +-
 drivers/pci/host/pcie-xilinx-nwl.c                 |  11 +-
 drivers/pci/pci-driver.c                           |  13 +-
 drivers/pci/pci-sysfs.c                            |   2 +-
 drivers/pci/pci.c                                  |   7 +
 drivers/phy/renesas/phy-rcar-gen2.c                |   2 +
 drivers/pinctrl/pinctrl-rockchip.c                 |   1 +
 drivers/ras/cec.c                                  |   4 +-
 drivers/regulator/s2mps11.c                        |   4 +-
 drivers/s390/cio/qdio_main.c                       |   1 +
 drivers/scsi/NCR5380.c                             |  33 +-
 drivers/scsi/NCR5380.h                             |   2 +-
 drivers/scsi/mac_scsi.c                            | 375 ++++++++++++---------
 drivers/scsi/megaraid/megaraid_sas_base.c          |   3 +-
 drivers/scsi/scsi_lib.c                            |   6 +-
 drivers/staging/media/davinci_vpfe/vpfe_video.c    |   3 +
 drivers/target/iscsi/iscsi_target_auth.c           |  16 +-
 drivers/tty/serial/8250/8250_port.c                |   3 +-
 drivers/tty/serial/cpm_uart/cpm_uart_core.c        |  17 +-
 drivers/tty/serial/digicolor-usart.c               |   6 +-
 drivers/tty/serial/max310x.c                       |  51 +--
 drivers/tty/serial/msm_serial.c                    |   4 +
 drivers/tty/serial/serial_core.c                   |   7 +-
 drivers/tty/serial/serial_mctrl_gpio.c             |  14 +
 drivers/tty/serial/sh-sci.c                        |  33 +-
 drivers/usb/core/hub.c                             |  35 +-
 drivers/usb/gadget/function/f_fs.c                 |   6 +-
 drivers/usb/host/hwa-hc.c                          |   2 +-
 drivers/usb/host/pci-quirks.c                      |  31 +-
 drivers/vhost/net.c                                |   2 +-
 drivers/xen/balloon.c                              |  16 +-
 drivers/xen/events/events_base.c                   |  12 +-
 drivers/xen/evtchn.c                               |   2 +-
 fs/9p/vfs_addr.c                                   |   6 +-
 fs/btrfs/file.c                                    |   5 +
 fs/btrfs/inode.c                                   |  24 +-
 fs/btrfs/tree-log.c                                |  40 ++-
 fs/coda/file.c                                     |  70 +++-
 fs/crypto/crypto.c                                 |  15 +-
 fs/ecryptfs/crypto.c                               |  12 +-
 fs/ext4/dir.c                                      |  19 +-
 fs/ext4/ext4_jbd2.h                                |  12 +-
 fs/ext4/file.c                                     |   4 +
 fs/ext4/inode.c                                    |  24 +-
 fs/ext4/ioctl.c                                    |  46 ++-
 fs/ext4/move_extent.c                              |   3 +-
 fs/ext4/namei.c                                    |  45 ++-
 fs/f2fs/segment.c                                  |   5 +
 fs/fs-writeback.c                                  |   8 +-
 fs/jbd2/commit.c                                   |  23 +-
 fs/jbd2/journal.c                                  |   4 +
 fs/jbd2/transaction.c                              |  49 +--
 fs/nfs/flexfilelayout/flexfilelayoutdev.c          |   2 +-
 fs/nfs/inode.c                                     |   1 +
 fs/nfs/nfs4file.c                                  |   2 +-
 fs/nfs/nfs4proc.c                                  |  41 ++-
 fs/nfsd/nfs4state.c                                |  11 +-
 fs/nfsd/nfssvc.c                                   |   2 +-
 fs/open.c                                          |  19 ++
 fs/proc/proc_sysctl.c                              |   4 +
 include/drm/drm_debugfs_crc.h                      |   3 +-
 include/linux/compiler.h                           |  22 +-
 include/linux/cpuhotplug.h                         |   2 +-
 include/linux/cred.h                               |   7 +-
 include/linux/fs.h                                 |   2 +
 include/linux/jbd2.h                               |  22 ++
 include/linux/rcupdate.h                           |   2 +-
 include/net/dst.h                                  |   5 +-
 include/net/ip_vs.h                                |   6 +-
 include/net/tcp.h                                  |   3 +-
 include/xen/events.h                               |   3 +-
 kernel/bpf/Makefile                                |   1 +
 kernel/cred.c                                      |  21 +-
 kernel/locking/lockdep.c                           |  18 +-
 kernel/locking/lockdep_proc.c                      |   8 +-
 kernel/padata.c                                    |  12 +
 kernel/pid_namespace.c                             |   2 +-
 kernel/sched/core.c                                |   2 +-
 kernel/sched/sched-pelt.h                          |   2 +-
 kernel/time/ntp.c                                  |   4 +-
 kernel/time/timer_list.c                           |  36 +-
 lib/reed_solomon/decode_rs.c                       |  18 +-
 lib/scatterlist.c                                  |   9 +-
 lib/string.c                                       |   2 +-
 mm/filemap.c                                       |  22 ++
 mm/gup.c                                           |  12 +-
 mm/kmemleak.c                                      |   2 +-
 mm/mmu_notifier.c                                  |   2 +-
 mm/vmscan.c                                        |   6 +-
 net/9p/trans_virtio.c                              |   8 +-
 net/9p/trans_xen.c                                 |   8 +-
 net/batman-adv/translation-table.c                 |   2 +
 net/bluetooth/6lowpan.c                            |  14 +-
 net/bluetooth/hci_event.c                          |   5 +
 net/bluetooth/l2cap_core.c                         |  15 +-
 net/bluetooth/smp.c                                |  13 +
 net/bridge/br_multicast.c                          |  32 +-
 net/bridge/br_stp_bpdu.c                           |   3 +-
 net/core/filter.c                                  |   3 +-
 net/core/neighbour.c                               |   2 +
 net/ipv4/devinet.c                                 |   8 +
 net/ipv4/igmp.c                                    |   8 +-
 net/ipv4/tcp.c                                     |   6 +-
 net/ipv4/tcp_cong.c                                |   6 +-
 net/key/af_key.c                                   |   8 +-
 net/netfilter/ipset/ip_set_hash_gen.h              |   2 +-
 net/netfilter/ipvs/ip_vs_core.c                    |  21 +-
 net/netfilter/ipvs/ip_vs_ctl.c                     |   4 -
 net/netfilter/ipvs/ip_vs_sync.c                    | 134 ++++----
 net/netfilter/nf_queue.c                           |   6 +-
 net/netrom/af_netrom.c                             |   4 +-
 net/nfc/nci/data.c                                 |   2 +-
 net/openvswitch/actions.c                          |   6 +-
 net/rxrpc/af_rxrpc.c                               |   4 +-
 net/vmw_vsock/hyperv_transport.c                   |  44 +--
 net/xfrm/Kconfig                                   |   2 +
 net/xfrm/xfrm_user.c                               |  19 ++
 scripts/kallsyms.c                                 |   3 +
 scripts/recordmcount.h                             |   3 +-
 sound/core/seq/seq_clientmgr.c                     |  11 +-
 sound/pci/hda/patch_conexant.c                     |   1 +
 sound/pci/hda/patch_realtek.c                      |   5 +
 sound/soc/soc-dapm.c                               |  18 +-
 sound/usb/line6/podhd.c                            |   2 +-
 tools/iio/iio_utils.c                              |   4 +-
 tools/perf/arch/arm/util/cs-etm.c                  | 127 ++++++-
 tools/perf/perf.h                                  |   2 +-
 tools/perf/tests/mmap-thread-lookup.c              |   2 +-
 tools/perf/tests/parse-events.c                    |  27 ++
 tools/perf/util/annotate.c                         |   6 +-
 tools/perf/util/evsel.c                            |   8 +-
 tools/perf/util/header.c                           |   2 +-
 tools/perf/util/session.c                          |   3 +
 tools/perf/util/stat-shadow.c                      |   5 +-
 tools/power/cpupower/utils/cpufreq-set.c           |   2 +
 293 files changed, 2749 insertions(+), 1145 deletions(-)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 001/293] MIPS: ath79: fix ar933x uart parity mode
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 002/293] MIPS: fix build on non-linux hosts Greg Kroah-Hartman
                   ` (297 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Stefan Hellermann, Paul Burton,
	linux-mips, Sasha Levin

[ Upstream commit db13a5ba2732755cf13320f3987b77cf2a71e790 ]

While trying to get the uart with parity working I found setting even
parity enabled odd parity insted. Fix the register settings to match
the datasheet of AR9331.

A similar patch was created by 8devices, but not sent upstream.
https://github.com/8devices/openwrt-8devices/commit/77c5586ade3bb72cda010afad3f209ed0c98ea7c

Signed-off-by: Stefan Hellermann <stefan@the2masters.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/include/asm/mach-ath79/ar933x_uart.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/mach-ath79/ar933x_uart.h b/arch/mips/include/asm/mach-ath79/ar933x_uart.h
index c2917b39966b..bba2c8837951 100644
--- a/arch/mips/include/asm/mach-ath79/ar933x_uart.h
+++ b/arch/mips/include/asm/mach-ath79/ar933x_uart.h
@@ -27,8 +27,8 @@
 #define AR933X_UART_CS_PARITY_S		0
 #define AR933X_UART_CS_PARITY_M		0x3
 #define	  AR933X_UART_CS_PARITY_NONE	0
-#define	  AR933X_UART_CS_PARITY_ODD	1
-#define	  AR933X_UART_CS_PARITY_EVEN	2
+#define	  AR933X_UART_CS_PARITY_ODD	2
+#define	  AR933X_UART_CS_PARITY_EVEN	3
 #define AR933X_UART_CS_IF_MODE_S	2
 #define AR933X_UART_CS_IF_MODE_M	0x3
 #define	  AR933X_UART_CS_IF_MODE_NONE	0
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 002/293] MIPS: fix build on non-linux hosts
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 001/293] MIPS: ath79: fix ar933x uart parity mode Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 003/293] arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly Greg Kroah-Hartman
                   ` (296 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jo-Philipp Wich, Petr Štetiar,
	Kevin Darbyshire-Bryant, Paul Burton, linux-mips, Sasha Levin

[ Upstream commit 1196364f21ffe5d1e6d83cafd6a2edb89404a3ae ]

calc_vmlinuz_load_addr.c requires SZ_64K to be defined for alignment
purposes.  It included "../../../../include/linux/sizes.h" to define
that size, however "sizes.h" tries to include <linux/const.h> which
assumes linux system headers.  These may not exist eg. the following
error was encountered when building Linux for OpenWrt under macOS:

In file included from arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:16:
arch/mips/boot/compressed/../../../../include/linux/sizes.h:11:10: fatal error: 'linux/const.h' file not found
         ^~~~~~~~~~

Change makefile to force building on local linux headers instead of
system headers.  Also change eye-watering relative reference in include
file spec.

Thanks to Jo-Philip Wich & Petr Štetiar for assistance in tracking this
down & fixing.

Suggested-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/boot/compressed/Makefile                 | 2 ++
 arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index adce180f3ee4..331b9e0a8072 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -75,6 +75,8 @@ OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
 	$(call if_changed,objcopy)
 
+HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
+
 # Calculate the load address of the compressed kernel image
 hostprogs-y := calc_vmlinuz_load_addr
 
diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
index 542c3ede9722..d14f75ec8273 100644
--- a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
+++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
@@ -13,7 +13,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "../../../../include/linux/sizes.h"
+#include <linux/sizes.h>
 
 int main(int argc, char *argv[])
 {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 003/293] arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 001/293] MIPS: ath79: fix ar933x uart parity mode Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 002/293] MIPS: fix build on non-linux hosts Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 004/293] scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported Greg Kroah-Hartman
                   ` (295 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Ard Biesheuvel, Fangrui Song,
	Nathan Chancellor, Will Deacon, Sasha Levin, Peter Smith

[ Upstream commit aa69fb62bea15126e744af2e02acc0d6cf3ed4da ]

After r363059 and r363928 in LLVM, a build using ld.lld as the linker
with CONFIG_RANDOMIZE_BASE enabled fails like so:

ld.lld: error: relocation R_AARCH64_ABS32 cannot be used against symbol
__efistub_stext_offset; recompile with -fPIC

Fangrui and Peter figured out that ld.lld is incorrectly considering
__efistub_stext_offset as a relative symbol because of the order in
which symbols are evaluated. _text is treated as an absolute symbol
and stext is a relative symbol, making __efistub_stext_offset a
relative symbol.

Adding ABSOLUTE will force ld.lld to evalute this expression in the
right context and does not change ld.bfd's behavior. ld.lld will
need to be fixed but the developers do not see a quick or simple fix
without some research (see the linked issue for further explanation).
Add this simple workaround so that ld.lld can continue to link kernels.

Link: https://github.com/ClangBuiltLinux/linux/issues/561
Link: https://github.com/llvm/llvm-project/commit/025a815d75d2356f2944136269aa5874721ec236
Link: https://github.com/llvm/llvm-project/commit/249fde85832c33f8b06c6b4ac65d1c4b96d23b83
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Debugged-by: Fangrui Song <maskray@google.com>
Debugged-by: Peter Smith <peter.smith@linaro.org>
Suggested-by: Fangrui Song <maskray@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[will: add comment]
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kernel/image.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/image.h b/arch/arm64/kernel/image.h
index 40f9f0b078a4..12af2ba8d558 100644
--- a/arch/arm64/kernel/image.h
+++ b/arch/arm64/kernel/image.h
@@ -73,7 +73,11 @@
 
 #ifdef CONFIG_EFI
 
-__efistub_stext_offset = stext - _text;
+/*
+ * Use ABSOLUTE() to avoid ld.lld treating this as a relative symbol:
+ * https://github.com/ClangBuiltLinux/linux/issues/561
+ */
+__efistub_stext_offset = ABSOLUTE(stext - _text);
 
 /*
  * The EFI stub has its own symbol namespace prefixed by __efistub_, to
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 004/293] scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (2 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 003/293] arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 005/293] dmaengine: imx-sdma: fix use-after-free on probe error path Greg Kroah-Hartman
                   ` (294 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Maurizio Lombardi, Chris Leech,
	Martin K. Petersen, Sasha Levin

[ Upstream commit 5dd6c49339126c2c8df2179041373222362d6e49 ]

If the CHAP_A value is not supported, the chap_server_open() function
should free the auth_protocol pointer and set it to NULL, or we will leave
a dangling pointer around.

[   66.010905] Unsupported CHAP_A value
[   66.011660] Security negotiation failed.
[   66.012443] iSCSI Login negotiation failed.
[   68.413924] general protection fault: 0000 [#1] SMP PTI
[   68.414962] CPU: 0 PID: 1562 Comm: targetcli Kdump: loaded Not tainted 4.18.0-80.el8.x86_64 #1
[   68.416589] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[   68.417677] RIP: 0010:__kmalloc_track_caller+0xc2/0x210

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/iscsi/iscsi_target_auth.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 4e680d753941..e2fa3a3bc81d 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -89,6 +89,12 @@ static int chap_check_algorithm(const char *a_str)
 	return CHAP_DIGEST_UNKNOWN;
 }
 
+static void chap_close(struct iscsi_conn *conn)
+{
+	kfree(conn->auth_protocol);
+	conn->auth_protocol = NULL;
+}
+
 static struct iscsi_chap *chap_server_open(
 	struct iscsi_conn *conn,
 	struct iscsi_node_auth *auth,
@@ -126,7 +132,7 @@ static struct iscsi_chap *chap_server_open(
 	case CHAP_DIGEST_UNKNOWN:
 	default:
 		pr_err("Unsupported CHAP_A value\n");
-		kfree(conn->auth_protocol);
+		chap_close(conn);
 		return NULL;
 	}
 
@@ -141,19 +147,13 @@ static struct iscsi_chap *chap_server_open(
 	 * Generate Challenge.
 	 */
 	if (chap_gen_challenge(conn, 1, aic_str, aic_len) < 0) {
-		kfree(conn->auth_protocol);
+		chap_close(conn);
 		return NULL;
 	}
 
 	return chap;
 }
 
-static void chap_close(struct iscsi_conn *conn)
-{
-	kfree(conn->auth_protocol);
-	conn->auth_protocol = NULL;
-}
-
 static int chap_server_compute_md5(
 	struct iscsi_conn *conn,
 	struct iscsi_node_auth *auth,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 005/293] dmaengine: imx-sdma: fix use-after-free on probe error path
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (3 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 004/293] scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 006/293] wil6210: fix potential out-of-bounds read Greg Kroah-Hartman
                   ` (293 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Sven Van Asbroeck, Robin Gong,
	Vinod Koul, Sasha Levin

[ Upstream commit 2b8066c3deb9140fdf258417a51479b2aeaa7622 ]

If probe() fails anywhere beyond the point where
sdma_get_firmware() is called, then a kernel oops may occur.

Problematic sequence of events:
1. probe() calls sdma_get_firmware(), which schedules the
   firmware callback to run when firmware becomes available,
   using the sdma instance structure as the context
2. probe() encounters an error, which deallocates the
   sdma instance structure
3. firmware becomes available, firmware callback is
   called with deallocated sdma instance structure
4. use after free - kernel oops !

Solution: only attempt to load firmware when we're certain
that probe() will succeed. This guarantees that the firmware
callback's context will remain valid.

Note that the remove() path is unaffected by this issue: the
firmware loader will increment the driver module's use count,
ensuring that the module cannot be unloaded while the
firmware callback is pending or running.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
[vkoul: fixed braces for if condition]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/imx-sdma.c | 48 ++++++++++++++++++++++++------------------
 1 file changed, 27 insertions(+), 21 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index b8e7c2d8915e..0fc12a8783e3 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1821,27 +1821,6 @@ static int sdma_probe(struct platform_device *pdev)
 	if (pdata && pdata->script_addrs)
 		sdma_add_scripts(sdma, pdata->script_addrs);
 
-	if (pdata) {
-		ret = sdma_get_firmware(sdma, pdata->fw_name);
-		if (ret)
-			dev_warn(&pdev->dev, "failed to get firmware from platform data\n");
-	} else {
-		/*
-		 * Because that device tree does not encode ROM script address,
-		 * the RAM script in firmware is mandatory for device tree
-		 * probe, otherwise it fails.
-		 */
-		ret = of_property_read_string(np, "fsl,sdma-ram-script-name",
-					      &fw_name);
-		if (ret)
-			dev_warn(&pdev->dev, "failed to get firmware name\n");
-		else {
-			ret = sdma_get_firmware(sdma, fw_name);
-			if (ret)
-				dev_warn(&pdev->dev, "failed to get firmware from device tree\n");
-		}
-	}
-
 	sdma->dma_device.dev = &pdev->dev;
 
 	sdma->dma_device.device_alloc_chan_resources = sdma_alloc_chan_resources;
@@ -1883,6 +1862,33 @@ static int sdma_probe(struct platform_device *pdev)
 		of_node_put(spba_bus);
 	}
 
+	/*
+	 * Kick off firmware loading as the very last step:
+	 * attempt to load firmware only if we're not on the error path, because
+	 * the firmware callback requires a fully functional and allocated sdma
+	 * instance.
+	 */
+	if (pdata) {
+		ret = sdma_get_firmware(sdma, pdata->fw_name);
+		if (ret)
+			dev_warn(&pdev->dev, "failed to get firmware from platform data\n");
+	} else {
+		/*
+		 * Because that device tree does not encode ROM script address,
+		 * the RAM script in firmware is mandatory for device tree
+		 * probe, otherwise it fails.
+		 */
+		ret = of_property_read_string(np, "fsl,sdma-ram-script-name",
+					      &fw_name);
+		if (ret) {
+			dev_warn(&pdev->dev, "failed to get firmware name\n");
+		} else {
+			ret = sdma_get_firmware(sdma, fw_name);
+			if (ret)
+				dev_warn(&pdev->dev, "failed to get firmware from device tree\n");
+		}
+	}
+
 	return 0;
 
 err_register:
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 006/293] wil6210: fix potential out-of-bounds read
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (4 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 005/293] dmaengine: imx-sdma: fix use-after-free on probe error path Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 007/293] ath10k: Do not send probe response template for mesh Greg Kroah-Hartman
                   ` (292 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Gustavo A. R. Silva, Maya Erez,
	Kalle Valo, Sasha Levin

[ Upstream commit bfabdd6997323adbedccb13a3fed1967fb8cf8f5 ]

Notice that *rc* can evaluate to up to 5, include/linux/netdevice.h:

enum gro_result {
        GRO_MERGED,
        GRO_MERGED_FREE,
        GRO_HELD,
        GRO_NORMAL,
        GRO_DROP,
        GRO_CONSUMED,
};
typedef enum gro_result gro_result_t;

In case *rc* evaluates to 5, we end up having an out-of-bounds read
at drivers/net/wireless/ath/wil6210/txrx.c:821:

	wil_dbg_txrx(wil, "Rx complete %d bytes => %s\n",
		     len, gro_res_str[rc]);

Fix this by adding element "GRO_CONSUMED" to array gro_res_str.

Addresses-Coverity-ID: 1444666 ("Out-of-bounds read")
Fixes: 194b482b5055 ("wil6210: Debug print GRO Rx result")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wil6210/txrx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 389c718cd257..16750056b8b5 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -732,6 +732,7 @@ void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev)
 		[GRO_HELD]		= "GRO_HELD",
 		[GRO_NORMAL]		= "GRO_NORMAL",
 		[GRO_DROP]		= "GRO_DROP",
+		[GRO_CONSUMED]		= "GRO_CONSUMED",
 	};
 
 	if (ndev->features & NETIF_F_RXHASH)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 007/293] ath10k: Do not send probe response template for mesh
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (5 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 006/293] wil6210: fix potential out-of-bounds read Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 008/293] ath9k: Check for errors when reading SREV register Greg Kroah-Hartman
                   ` (291 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Surabhi Vishnoi, Kalle Valo, Sasha Levin

[ Upstream commit 97354f2c432788e3163134df6bb144f4b6289d87 ]

Currently mac80211 do not support probe response template for
mesh point. When WMI_SERVICE_BEACON_OFFLOAD is enabled, host
driver tries to configure probe response template for mesh, but
it fails because the interface type is not NL80211_IFTYPE_AP but
NL80211_IFTYPE_MESH_POINT.

To avoid this failure, skip sending probe response template to
firmware for mesh point.

Tested HW: WCN3990/QCA6174/QCA9984

Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index cdcfb175ad9b..58a3c42c4aed 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1611,6 +1611,10 @@ static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
 	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
 		return 0;
 
+	 /* For mesh, probe response and beacon share the same template */
+	if (ieee80211_vif_is_mesh(vif))
+		return 0;
+
 	prb = ieee80211_proberesp_get(hw, vif);
 	if (!prb) {
 		ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 008/293] ath9k: Check for errors when reading SREV register
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (6 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 007/293] ath10k: Do not send probe response template for mesh Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 009/293] ath6kl: add some bounds checking Greg Kroah-Hartman
                   ` (290 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Tim Schumacher, Kalle Valo, Sasha Levin

[ Upstream commit 2f90c7e5d09437a4d8d5546feaae9f1cf48cfbe1 ]

Right now, if an error is encountered during the SREV register
read (i.e. an EIO in ath9k_regread()), that error code gets
passed all the way to __ath9k_hw_init(), where it is visible
during the "Chip rev not supported" message.

    ath9k_htc 1-1.4:1.0: ath9k_htc: HTC initialized with 33 credits
    ath: phy2: Mac Chip Rev 0x0f.3 is not supported by this driver
    ath: phy2: Unable to initialize hardware; initialization status: -95
    ath: phy2: Unable to initialize hardware; initialization status: -95
    ath9k_htc: Failed to initialize the device

Check for -EIO explicitly in ath9k_hw_read_revisions() and return
a boolean based on the success of the operation. Check for that in
__ath9k_hw_init() and abort with a more debugging-friendly message
if reading the revisions wasn't successful.

    ath9k_htc 1-1.4:1.0: ath9k_htc: HTC initialized with 33 credits
    ath: phy2: Failed to read SREV register
    ath: phy2: Could not read hardware revision
    ath: phy2: Unable to initialize hardware; initialization status: -95
    ath: phy2: Unable to initialize hardware; initialization status: -95
    ath9k_htc: Failed to initialize the device

This helps when debugging by directly showing the first point of
failure and it could prevent possible errors if a 0x0f.3 revision
is ever supported.

Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/hw.c | 32 +++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index a7f506eb7b36..406b52f114f0 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -250,8 +250,9 @@ void ath9k_hw_get_channel_centers(struct ath_hw *ah,
 /* Chip Revisions */
 /******************/
 
-static void ath9k_hw_read_revisions(struct ath_hw *ah)
+static bool ath9k_hw_read_revisions(struct ath_hw *ah)
 {
+	u32 srev;
 	u32 val;
 
 	if (ah->get_mac_revision)
@@ -267,25 +268,33 @@ static void ath9k_hw_read_revisions(struct ath_hw *ah)
 			val = REG_READ(ah, AR_SREV);
 			ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 		}
-		return;
+		return true;
 	case AR9300_DEVID_AR9340:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9340;
-		return;
+		return true;
 	case AR9300_DEVID_QCA955X:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9550;
-		return;
+		return true;
 	case AR9300_DEVID_AR953X:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9531;
-		return;
+		return true;
 	case AR9300_DEVID_QCA956X:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9561;
-		return;
+		return true;
 	}
 
-	val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
+	srev = REG_READ(ah, AR_SREV);
+
+	if (srev == -EIO) {
+		ath_err(ath9k_hw_common(ah),
+			"Failed to read SREV register");
+		return false;
+	}
+
+	val = srev & AR_SREV_ID;
 
 	if (val == 0xFF) {
-		val = REG_READ(ah, AR_SREV);
+		val = srev;
 		ah->hw_version.macVersion =
 			(val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
 		ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
@@ -304,6 +313,8 @@ static void ath9k_hw_read_revisions(struct ath_hw *ah)
 		if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
 			ah->is_pciexpress = true;
 	}
+
+	return true;
 }
 
 /************************************/
@@ -557,7 +568,10 @@ static int __ath9k_hw_init(struct ath_hw *ah)
 	struct ath_common *common = ath9k_hw_common(ah);
 	int r = 0;
 
-	ath9k_hw_read_revisions(ah);
+	if (!ath9k_hw_read_revisions(ah)) {
+		ath_err(common, "Could not read hardware revisions");
+		return -EOPNOTSUPP;
+	}
 
 	switch (ah->hw_version.macVersion) {
 	case AR_SREV_VERSION_5416_PCI:
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 009/293] ath6kl: add some bounds checking
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (7 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 008/293] ath9k: Check for errors when reading SREV register Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 010/293] ath: DFS JP domain W56 fixed pulse type 3 RADAR detection Greg Kroah-Hartman
                   ` (289 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Kalle Valo, Sasha Levin

[ Upstream commit 5d6751eaff672ea77642e74e92e6c0ac7f9709ab ]

The "ev->traffic_class" and "reply->ac" variables come from the network
and they're used as an offset into the wmi->stream_exist_for_ac[] array.
Those variables are u8 so they can be 0-255 but the stream_exist_for_ac[]
array only has WMM_NUM_AC (4) elements.  We need to add a couple bounds
checks to prevent array overflows.

I also modified one existing check from "if (traffic_class > 3) {" to
"if (traffic_class >= WMM_NUM_AC) {" just to make them all consistent.

Fixes: bdcd81707973 (" Add ath6kl cleaned up driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath6kl/wmi.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index bfc20b45b806..d79c2bccf582 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -1178,6 +1178,10 @@ static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
 		return -EINVAL;
 
 	ev = (struct wmi_pstream_timeout_event *) datap;
+	if (ev->traffic_class >= WMM_NUM_AC) {
+		ath6kl_err("invalid traffic class: %d\n", ev->traffic_class);
+		return -EINVAL;
+	}
 
 	/*
 	 * When the pstream (fat pipe == AC) timesout, it means there were
@@ -1519,6 +1523,10 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
 		return -EINVAL;
 
 	reply = (struct wmi_cac_event *) datap;
+	if (reply->ac >= WMM_NUM_AC) {
+		ath6kl_err("invalid AC: %d\n", reply->ac);
+		return -EINVAL;
+	}
 
 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
@@ -2635,7 +2643,7 @@ int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
 	u16 active_tsids = 0;
 	int ret;
 
-	if (traffic_class > 3) {
+	if (traffic_class >= WMM_NUM_AC) {
 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
 		return -EINVAL;
 	}
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 010/293] ath: DFS JP domain W56 fixed pulse type 3 RADAR detection
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (8 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 009/293] ath6kl: add some bounds checking Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 011/293] batman-adv: fix for leaked TVLV handler Greg Kroah-Hartman
                   ` (288 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Tamizh chelvam, Anilkumar Kolli,
	Kalle Valo, Sasha Levin

[ Upstream commit d8792393a783158cbb2c39939cb897dc5e5299b6 ]

Increase pulse width range from 1-2usec to 0-4usec.
During data traffic HW occasionally fails detecting radar pulses,
so that SW cannot get enough radar reports to achieve the success rate.

Tested ath10k hw and fw:
	* QCA9888(10.4-3.5.1-00052)
	* QCA4019(10.4-3.2.1.1-00017)
	* QCA9984(10.4-3.6-00104)
	* QCA988X(10.2.4-1.0-00041)

Tested ath9k hw: AR9300

Tested-by: Tamizh chelvam <tamizhr@codeaurora.org>
Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/dfs_pattern_detector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/dfs_pattern_detector.c b/drivers/net/wireless/ath/dfs_pattern_detector.c
index 4100ffd42a43..78146607f16e 100644
--- a/drivers/net/wireless/ath/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/dfs_pattern_detector.c
@@ -111,7 +111,7 @@ static const struct radar_detector_specs jp_radar_ref_types[] = {
 	JP_PATTERN(0, 0, 1, 1428, 1428, 1, 18, 29, false),
 	JP_PATTERN(1, 2, 3, 3846, 3846, 1, 18, 29, false),
 	JP_PATTERN(2, 0, 1, 1388, 1388, 1, 18, 50, false),
-	JP_PATTERN(3, 1, 2, 4000, 4000, 1, 18, 50, false),
+	JP_PATTERN(3, 0, 4, 4000, 4000, 1, 18, 50, false),
 	JP_PATTERN(4, 0, 5, 150, 230, 1, 23, 50, false),
 	JP_PATTERN(5, 6, 10, 200, 500, 1, 16, 50, false),
 	JP_PATTERN(6, 11, 20, 200, 500, 1, 12, 50, false),
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 011/293] batman-adv: fix for leaked TVLV handler.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (9 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 010/293] ath: DFS JP domain W56 fixed pulse type 3 RADAR detection Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 012/293] media: dvb: usb: fix use after free in dvb_usb_device_exit Greg Kroah-Hartman
                   ` (287 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+d454a826e670502484b8,
	Jeremy Sowden, Sven Eckelmann, Simon Wunderlich, Sasha Levin

[ Upstream commit 17f78dd1bd624a4dd78ed5db3284a63ee807fcc3 ]

A handler for BATADV_TVLV_ROAM was being registered when the
translation-table was initialized, but not unregistered when the
translation-table was freed.  Unregister it.

Fixes: 122edaa05940 ("batman-adv: tvlv - convert roaming adv packet to use tvlv unicast packets")
Reported-by: syzbot+d454a826e670502484b8@syzkaller.appspotmail.com
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/batman-adv/translation-table.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 020a8adc4cce..2c2670b85fa9 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -3750,6 +3750,8 @@ static void batadv_tt_purge(struct work_struct *work)
 
 void batadv_tt_free(struct batadv_priv *bat_priv)
 {
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_ROAM, 1);
+
 	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_TT, 1);
 	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_TT, 1);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 012/293] media: dvb: usb: fix use after free in dvb_usb_device_exit
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (10 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 011/293] batman-adv: fix for leaked TVLV handler Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 013/293] media: spi: IR LED: add missing of table registration Greg Kroah-Hartman
                   ` (286 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Oliver Neukum,
	syzbot+26ec41e9f788b3eba396, Sean Young, Mauro Carvalho Chehab,
	Sasha Levin

[ Upstream commit 6cf97230cd5f36b7665099083272595c55d72be7 ]

dvb_usb_device_exit() frees and uses the device name in that order.
Fix by storing the name in a buffer before freeing it.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: syzbot+26ec41e9f788b3eba396@syzkaller.appspotmail.com
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/dvb-usb/dvb-usb-init.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/dvb-usb-init.c b/drivers/media/usb/dvb-usb/dvb-usb-init.c
index 84308569e7dc..b3413404f91a 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-init.c
@@ -287,12 +287,15 @@ EXPORT_SYMBOL(dvb_usb_device_init);
 void dvb_usb_device_exit(struct usb_interface *intf)
 {
 	struct dvb_usb_device *d = usb_get_intfdata(intf);
-	const char *name = "generic DVB-USB module";
+	const char *default_name = "generic DVB-USB module";
+	char name[40];
 
 	usb_set_intfdata(intf, NULL);
 	if (d != NULL && d->desc != NULL) {
-		name = d->desc->name;
+		strscpy(name, d->desc->name, sizeof(name));
 		dvb_usb_exit(d);
+	} else {
+		strscpy(name, default_name, sizeof(name));
 	}
 	info("%s successfully deinitialized and disconnected.", name);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 013/293] media: spi: IR LED: add missing of table registration
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (11 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 012/293] media: dvb: usb: fix use after free in dvb_usb_device_exit Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 014/293] crypto: talitos - fix skcipher failure due to wrong output IV Greg Kroah-Hartman
                   ` (285 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Javier Martinez Canillas,
	Daniel Gomez, Sean Young, Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 24e4cf770371df6ad49ed873f21618d9878f64c8 ]

MODULE_DEVICE_TABLE(of, <of_match_table> should be called to complete DT
OF mathing mechanism and register it.

Before this patch:
modinfo drivers/media/rc/ir-spi.ko  | grep alias

After this patch:
modinfo drivers/media/rc/ir-spi.ko  | grep alias
alias:          of:N*T*Cir-spi-ledC*
alias:          of:N*T*Cir-spi-led

Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Daniel Gomez <dagmcr@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/rc/ir-spi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/rc/ir-spi.c b/drivers/media/rc/ir-spi.c
index 29ed0638cb74..cbe585f95715 100644
--- a/drivers/media/rc/ir-spi.c
+++ b/drivers/media/rc/ir-spi.c
@@ -186,6 +186,7 @@ static const struct of_device_id ir_spi_of_match[] = {
 	{ .compatible = "ir-spi-led" },
 	{},
 };
+MODULE_DEVICE_TABLE(of, ir_spi_of_match);
 
 static struct spi_driver ir_spi_driver = {
 	.probe = ir_spi_probe,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 014/293] crypto: talitos - fix skcipher failure due to wrong output IV
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (12 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 013/293] media: spi: IR LED: add missing of table registration Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 015/293] media: marvell-ccic: fix DMA s/g desc number calculation Greg Kroah-Hartman
                   ` (284 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Christophe Leroy, Horia Geantă,
	Herbert Xu, Sasha Levin

[ Upstream commit 3e03e792865ae48b8cfc69a0b4d65f02f467389f ]

Selftests report the following:

[    2.984845] alg: skcipher: cbc-aes-talitos encryption test failed (wrong output IV) on test vector 0, cfg="in-place"
[    2.995377] 00000000: 3d af ba 42 9d 9e b4 30 b4 22 da 80 2c 9f ac 41
[    3.032673] alg: skcipher: cbc-des-talitos encryption test failed (wrong output IV) on test vector 0, cfg="in-place"
[    3.043185] 00000000: fe dc ba 98 76 54 32 10
[    3.063238] alg: skcipher: cbc-3des-talitos encryption test failed (wrong output IV) on test vector 0, cfg="in-place"
[    3.073818] 00000000: 7d 33 88 93 0f 93 b2 42

This above dumps show that the actual output IV is indeed the input IV.
This is due to the IV not being copied back into the request.

This patch fixes that.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/talitos.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 1f8fe1795964..8707607039d3 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1544,11 +1544,15 @@ static void ablkcipher_done(struct device *dev,
 			    int err)
 {
 	struct ablkcipher_request *areq = context;
+	struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
+	unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
 	struct talitos_edesc *edesc;
 
 	edesc = container_of(desc, struct talitos_edesc, desc);
 
 	common_nonsnoop_unmap(dev, edesc, areq);
+	memcpy(areq->info, ctx->iv, ivsize);
 
 	kfree(edesc);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 015/293] media: marvell-ccic: fix DMA s/g desc number calculation
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (13 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 014/293] crypto: talitos - fix skcipher failure due to wrong output IV Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 016/293] media: vpss: fix a potential NULL pointer dereference Greg Kroah-Hartman
                   ` (283 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Lubomir Rintel, Sakari Ailus,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 0c7aa32966dab0b8a7424e1b34c7f206817953ec ]

The commit d790b7eda953 ("[media] vb2-dma-sg: move dma_(un)map_sg here")
left dma_desc_nent unset. It previously contained the number of DMA
descriptors as returned from dma_map_sg().

We can now (since the commit referred to above) obtain the same value from
the sg_table and drop dma_desc_nent altogether.

Tested on OLPC XO-1.75 machine. Doesn't affect the OLPC XO-1's Cafe
driver, since that one doesn't do DMA.

[mchehab+samsung@kernel.org: fix a checkpatch warning]

Fixes: d790b7eda953 ("[media] vb2-dma-sg: move dma_(un)map_sg here")
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/marvell-ccic/mcam-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 7b7250b1cff8..4ecb94860aa4 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -200,7 +200,6 @@ struct mcam_vb_buffer {
 	struct list_head queue;
 	struct mcam_dma_desc *dma_desc;	/* Descriptor virtual address */
 	dma_addr_t dma_desc_pa;		/* Descriptor physical address */
-	int dma_desc_nent;		/* Number of mapped descriptors */
 };
 
 static inline struct mcam_vb_buffer *vb_to_mvb(struct vb2_v4l2_buffer *vb)
@@ -608,9 +607,11 @@ static void mcam_dma_contig_done(struct mcam_camera *cam, int frame)
 static void mcam_sg_next_buffer(struct mcam_camera *cam)
 {
 	struct mcam_vb_buffer *buf;
+	struct sg_table *sg_table;
 
 	buf = list_first_entry(&cam->buffers, struct mcam_vb_buffer, queue);
 	list_del_init(&buf->queue);
+	sg_table = vb2_dma_sg_plane_desc(&buf->vb_buf.vb2_buf, 0);
 	/*
 	 * Very Bad Not Good Things happen if you don't clear
 	 * C1_DESC_ENA before making any descriptor changes.
@@ -618,7 +619,7 @@ static void mcam_sg_next_buffer(struct mcam_camera *cam)
 	mcam_reg_clear_bit(cam, REG_CTRL1, C1_DESC_ENA);
 	mcam_reg_write(cam, REG_DMA_DESC_Y, buf->dma_desc_pa);
 	mcam_reg_write(cam, REG_DESC_LEN_Y,
-			buf->dma_desc_nent*sizeof(struct mcam_dma_desc));
+			sg_table->nents * sizeof(struct mcam_dma_desc));
 	mcam_reg_write(cam, REG_DESC_LEN_U, 0);
 	mcam_reg_write(cam, REG_DESC_LEN_V, 0);
 	mcam_reg_set_bit(cam, REG_CTRL1, C1_DESC_ENA);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 016/293] media: vpss: fix a potential NULL pointer dereference
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (14 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 015/293] media: marvell-ccic: fix DMA s/g desc number calculation Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 017/293] media: media_device_enum_links32: clean a reserved field Greg Kroah-Hartman
                   ` (282 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Kangjie Lu, Lad, Prabhakar,
	Mukesh Ojha, Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit e08f0761234def47961d3252eac09ccedfe4c6a0 ]

In case ioremap fails, the fix returns -ENOMEM to avoid NULL
pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/davinci/vpss.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/platform/davinci/vpss.c b/drivers/media/platform/davinci/vpss.c
index f2d27b932999..2ee4cd9e6d80 100644
--- a/drivers/media/platform/davinci/vpss.c
+++ b/drivers/media/platform/davinci/vpss.c
@@ -518,6 +518,11 @@ static int __init vpss_init(void)
 		return -EBUSY;
 
 	oper_cfg.vpss_regs_base2 = ioremap(VPSS_CLK_CTRL, 4);
+	if (unlikely(!oper_cfg.vpss_regs_base2)) {
+		release_mem_region(VPSS_CLK_CTRL, 4);
+		return -ENOMEM;
+	}
+
 	writel(VPSS_CLK_CTRL_VENCCLKEN |
 		     VPSS_CLK_CTRL_DACCLKEN, oper_cfg.vpss_regs_base2);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 017/293] media: media_device_enum_links32: clean a reserved field
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (15 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 016/293] media: vpss: fix a potential NULL pointer dereference Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 018/293] net: stmmac: dwmac1000: Clear unused address entries Greg Kroah-Hartman
                   ` (281 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jungo Lin, Mauro Carvalho Chehab,
	Sasha Levin

[ Upstream commit f49308878d7202e07d8761238e01bd0e5fce2750 ]

In v4l2-compliance utility, test MEDIA_IOC_ENUM_ENTITIES
will check whether reserved field of media_links_enum filled
with zero.

However, for 32 bit program, the reserved field is missing
copy from kernel space to user space in media_device_enum_links32
function.

This patch adds the cleaning a reserved field logic in
media_device_enum_links32 function.

Signed-off-by: Jungo Lin <jungo.lin@mediatek.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/media-device.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index 62b2c5d9bdfb..a6d56154fac7 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -470,6 +470,7 @@ static long media_device_enum_links32(struct media_device *mdev,
 {
 	struct media_links_enum links;
 	compat_uptr_t pads_ptr, links_ptr;
+	int ret;
 
 	memset(&links, 0, sizeof(links));
 
@@ -481,7 +482,13 @@ static long media_device_enum_links32(struct media_device *mdev,
 	links.pads = compat_ptr(pads_ptr);
 	links.links = compat_ptr(links_ptr);
 
-	return media_device_enum_links(mdev, &links);
+	ret = media_device_enum_links(mdev, &links);
+	if (ret)
+		return ret;
+
+	memset(ulinks->reserved, 0, sizeof(ulinks->reserved));
+
+	return 0;
 }
 
 #define MEDIA_IOC_ENUM_LINKS32		_IOWR('|', 0x02, struct media_links_enum32)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 018/293] net: stmmac: dwmac1000: Clear unused address entries
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (16 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 017/293] media: media_device_enum_links32: clean a reserved field Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 019/293] net: stmmac: dwmac4/5: " Greg Kroah-Hartman
                   ` (280 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jose Abreu, Joao Pinto,
	David S. Miller, Giuseppe Cavallaro, Alexandre Torgue,
	Sasha Levin

[ Upstream commit 9463c445590091202659cdfdd44b236acadfbd84 ]

In case we don't use a given address entry we need to clear it because
it could contain previous values that are no longer valid.

Found out while running stmmac selftests.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index 540d21786a43..08dd6a06ac58 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -217,6 +217,12 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
 					    GMAC_ADDR_LOW(reg));
 			reg++;
 		}
+
+		while (reg <= perfect_addr_number) {
+			writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
+			writel(0, ioaddr + GMAC_ADDR_LOW(reg));
+			reg++;
+		}
 	}
 
 #ifdef FRAME_FILTER_DEBUG
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 019/293] net: stmmac: dwmac4/5: Clear unused address entries
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (17 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 018/293] net: stmmac: dwmac1000: Clear unused address entries Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 020/293] qed: Set the doorbell address correctly Greg Kroah-Hartman
                   ` (279 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jose Abreu, Joao Pinto,
	David S. Miller, Giuseppe Cavallaro, Alexandre Torgue,
	Sasha Levin

[ Upstream commit 0620ec6c62a5a07625b65f699adc5d1b90394ee6 ]

In case we don't use a given address entry we need to clear it because
it could contain previous values that are no longer valid.

Found out while running stmmac selftests.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 55ae14a6bb8c..ed5fcd4994f2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -443,14 +443,20 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
 		 * are required
 		 */
 		value |= GMAC_PACKET_FILTER_PR;
-	} else if (!netdev_uc_empty(dev)) {
-		int reg = 1;
+	} else {
 		struct netdev_hw_addr *ha;
+		int reg = 1;
 
 		netdev_for_each_uc_addr(ha, dev) {
 			dwmac4_set_umac_addr(hw, ha->addr, reg);
 			reg++;
 		}
+
+		while (reg <= GMAC_MAX_PERFECT_ADDRESSES) {
+			writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
+			writel(0, ioaddr + GMAC_ADDR_LOW(reg));
+			reg++;
+		}
 	}
 
 	writel(value, ioaddr + GMAC_PACKET_FILTER);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 020/293] qed: Set the doorbell address correctly
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (18 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 019/293] net: stmmac: dwmac4/5: " Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 021/293] signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig Greg Kroah-Hartman
                   ` (278 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Ariel Elior, Denis Bolotin,
	Michal Kalderon, David S. Miller, Sasha Levin

[ Upstream commit 8366d520019f366fabd6c7a13032bdcd837e18d4 ]

In 100g mode the doorbell bar is united for both engines. Set
the correct offset in the hwfn so that the doorbell returned
for RoCE is in the affined hwfn.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Denis Bolotin <denis.bolotin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_dev.c  | 29 ++++++++++++++--------
 drivers/net/ethernet/qlogic/qed/qed_rdma.c |  2 +-
 2 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 410528e7d927..c4e8bf0773fe 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -2947,6 +2947,7 @@ static int qed_get_dev_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
 				 void __iomem *p_regview,
 				 void __iomem *p_doorbells,
+				 u64 db_phys_addr,
 				 enum qed_pci_personality personality)
 {
 	int rc = 0;
@@ -2954,6 +2955,7 @@ static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
 	/* Split PCI bars evenly between hwfns */
 	p_hwfn->regview = p_regview;
 	p_hwfn->doorbells = p_doorbells;
+	p_hwfn->db_phys_addr = db_phys_addr;
 
 	if (IS_VF(p_hwfn->cdev))
 		return qed_vf_hw_prepare(p_hwfn);
@@ -3036,7 +3038,9 @@ int qed_hw_prepare(struct qed_dev *cdev,
 	/* Initialize the first hwfn - will learn number of hwfns */
 	rc = qed_hw_prepare_single(p_hwfn,
 				   cdev->regview,
-				   cdev->doorbells, personality);
+				   cdev->doorbells,
+				   cdev->db_phys_addr,
+				   personality);
 	if (rc)
 		return rc;
 
@@ -3045,22 +3049,25 @@ int qed_hw_prepare(struct qed_dev *cdev,
 	/* Initialize the rest of the hwfns */
 	if (cdev->num_hwfns > 1) {
 		void __iomem *p_regview, *p_doorbell;
-		u8 __iomem *addr;
+		u64 db_phys_addr;
+		u32 offset;
 
 		/* adjust bar offset for second engine */
-		addr = cdev->regview +
-		       qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
-				       BAR_ID_0) / 2;
-		p_regview = addr;
+		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
+					 BAR_ID_0) / 2;
+		p_regview = cdev->regview + offset;
 
-		addr = cdev->doorbells +
-		       qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
-				       BAR_ID_1) / 2;
-		p_doorbell = addr;
+		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
+					 BAR_ID_1) / 2;
+
+		p_doorbell = cdev->doorbells + offset;
+
+		db_phys_addr = cdev->db_phys_addr + offset;
 
 		/* prepare second hw function */
 		rc = qed_hw_prepare_single(&cdev->hwfns[1], p_regview,
-					   p_doorbell, personality);
+					   p_doorbell, db_phys_addr,
+					   personality);
 
 		/* in case of error, need to free the previously
 		 * initiliazed hwfn 0.
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
index 1b6554866138..1e13dea66989 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
@@ -753,7 +753,7 @@ static int qed_rdma_add_user(void *rdma_cxt,
 				     dpi_start_offset +
 				     ((out_params->dpi) * p_hwfn->dpi_size));
 
-	out_params->dpi_phys_addr = p_hwfn->cdev->db_phys_addr +
+	out_params->dpi_phys_addr = p_hwfn->db_phys_addr +
 				    dpi_start_offset +
 				    ((out_params->dpi) * p_hwfn->dpi_size);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 021/293] signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (19 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 020/293] qed: Set the doorbell address correctly Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 022/293] af_key: fix leaks in key_pol_get_resp and dump_sp Greg Kroah-Hartman
                   ` (277 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Daniel Lezcano, Serge Hallyn,
	Oleg Nesterov, Eric W. Biederman, Sasha Levin

[ Upstream commit f9070dc94542093fd516ae4ccea17ef46a4362c5 ]

The locking in force_sig_info is not prepared to deal with a task that
exits or execs (as sighand may change).  The is not a locking problem
in force_sig as force_sig is only built to handle synchronous
exceptions.

Further the function force_sig_info changes the signal state if the
signal is ignored, or blocked or if SIGNAL_UNKILLABLE will prevent the
delivery of the signal.  The signal SIGKILL can not be ignored and can
not be blocked and SIGNAL_UNKILLABLE won't prevent it from being
delivered.

So using force_sig rather than send_sig for SIGKILL is confusing
and pointless.

Because it won't impact the sending of the signal and and because
using force_sig is wrong, replace force_sig with send_sig.

Cc: Daniel Lezcano <daniel.lezcano@free.fr>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Fixes: cf3f89214ef6 ("pidns: add reboot_pid_ns() to handle the reboot syscall")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/pid_namespace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 4918314893bc..22091c88b3bb 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -351,7 +351,7 @@ int reboot_pid_ns(struct pid_namespace *pid_ns, int cmd)
 	}
 
 	read_lock(&tasklist_lock);
-	force_sig(SIGKILL, pid_ns->child_reaper);
+	send_sig(SIGKILL, pid_ns->child_reaper, 1);
 	read_unlock(&tasklist_lock);
 
 	do_exit(0);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 022/293] af_key: fix leaks in key_pol_get_resp and dump_sp.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (20 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 021/293] signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 023/293] xfrm: Fix xfrm sel prefix length validation Greg Kroah-Hartman
                   ` (276 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+4f0529365f7f2208d9f0,
	Jeremy Sowden, Steffen Klassert, Sasha Levin

[ Upstream commit 7c80eb1c7e2b8420477fbc998971d62a648035d9 ]

In both functions, if pfkey_xfrm_policy2msg failed we leaked the newly
allocated sk_buff.  Free it on error.

Fixes: 55569ce256ce ("Fix conversion between IPSEC_MODE_xxx and XFRM_MODE_xxx.")
Reported-by: syzbot+4f0529365f7f2208d9f0@syzkaller.appspotmail.com
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/key/af_key.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/key/af_key.c b/net/key/af_key.c
index b095551a5773..ac38b47e9f86 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2438,8 +2438,10 @@ static int key_pol_get_resp(struct sock *sk, struct xfrm_policy *xp, const struc
 		goto out;
 	}
 	err = pfkey_xfrm_policy2msg(out_skb, xp, dir);
-	if (err < 0)
+	if (err < 0) {
+		kfree_skb(out_skb);
 		goto out;
+	}
 
 	out_hdr = (struct sadb_msg *) out_skb->data;
 	out_hdr->sadb_msg_version = hdr->sadb_msg_version;
@@ -2690,8 +2692,10 @@ static int dump_sp(struct xfrm_policy *xp, int dir, int count, void *ptr)
 		return PTR_ERR(out_skb);
 
 	err = pfkey_xfrm_policy2msg(out_skb, xp, dir);
-	if (err < 0)
+	if (err < 0) {
+		kfree_skb(out_skb);
 		return err;
+	}
 
 	out_hdr = (struct sadb_msg *) out_skb->data;
 	out_hdr->sadb_msg_version = pfk->dump.msg_version;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 023/293] xfrm: Fix xfrm sel prefix length validation
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (21 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 022/293] af_key: fix leaks in key_pol_get_resp and dump_sp Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 024/293] fscrypt: clean up some BUG_ON()s in block encryption/decryption Greg Kroah-Hartman
                   ` (275 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Anirudh Gupta, Herbert Xu,
	Steffen Klassert, Sasha Levin

[ Upstream commit b38ff4075a80b4da5cb2202d7965332ca0efb213 ]

Family of src/dst can be different from family of selector src/dst.
Use xfrm selector family to validate address prefix length,
while verifying new sa from userspace.

Validated patch with this command:
ip xfrm state add src 1.1.6.1 dst 1.1.6.2 proto esp spi 4260196 \
reqid 20004 mode tunnel aead "rfc4106(gcm(aes))" \
0x1111016400000000000000000000000044440001 128 \
sel src 1011:1:4::2/128 sel dst 1021:1:4::2/128 dev Port5

Fixes: 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.")
Signed-off-by: Anirudh Gupta <anirudh.gupta@sophos.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_user.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 919b8406028c..b25b68ae7c74 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -150,6 +150,22 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 
 	err = -EINVAL;
 	switch (p->family) {
+	case AF_INET:
+		break;
+
+	case AF_INET6:
+#if IS_ENABLED(CONFIG_IPV6)
+		break;
+#else
+		err = -EAFNOSUPPORT;
+		goto out;
+#endif
+
+	default:
+		goto out;
+	}
+
+	switch (p->sel.family) {
 	case AF_INET:
 		if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32)
 			goto out;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 024/293] fscrypt: clean up some BUG_ON()s in block encryption/decryption
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (22 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 023/293] xfrm: Fix xfrm sel prefix length validation Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 025/293] media: mc-device.c: dont memset __user pointer contents Greg Kroah-Hartman
                   ` (274 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Chandan Rajendra, Eric Biggers, Sasha Levin

[ Upstream commit eeacfdc68a104967162dfcba60f53f6f5b62a334 ]

Replace some BUG_ON()s with WARN_ON_ONCE() and returning an error code,
and move the check for len divisible by FS_CRYPTO_BLOCK_SIZE into
fscrypt_crypt_block() so that it's done for both encryption and
decryption, not just encryption.

Reviewed-by: Chandan Rajendra <chandan@linux.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/crypto/crypto.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index daf2683f0655..f862ad19c714 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -157,7 +157,10 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
 	struct crypto_skcipher *tfm = ci->ci_ctfm;
 	int res = 0;
 
-	BUG_ON(len == 0);
+	if (WARN_ON_ONCE(len <= 0))
+		return -EINVAL;
+	if (WARN_ON_ONCE(len % FS_CRYPTO_BLOCK_SIZE != 0))
+		return -EINVAL;
 
 	BUILD_BUG_ON(sizeof(iv) != FS_IV_SIZE);
 	BUILD_BUG_ON(AES_BLOCK_SIZE != FS_IV_SIZE);
@@ -257,8 +260,6 @@ struct page *fscrypt_encrypt_page(const struct inode *inode,
 	struct page *ciphertext_page = page;
 	int err;
 
-	BUG_ON(len % FS_CRYPTO_BLOCK_SIZE != 0);
-
 	if (inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES) {
 		/* with inplace-encryption we just encrypt the page */
 		err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk_num, page,
@@ -270,7 +271,8 @@ struct page *fscrypt_encrypt_page(const struct inode *inode,
 		return ciphertext_page;
 	}
 
-	BUG_ON(!PageLocked(page));
+	if (WARN_ON_ONCE(!PageLocked(page)))
+		return ERR_PTR(-EINVAL);
 
 	ctx = fscrypt_get_ctx(inode, gfp_flags);
 	if (IS_ERR(ctx))
@@ -318,8 +320,9 @@ EXPORT_SYMBOL(fscrypt_encrypt_page);
 int fscrypt_decrypt_page(const struct inode *inode, struct page *page,
 			unsigned int len, unsigned int offs, u64 lblk_num)
 {
-	if (!(inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES))
-		BUG_ON(!PageLocked(page));
+	if (WARN_ON_ONCE(!PageLocked(page) &&
+			 !(inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES)))
+		return -EINVAL;
 
 	return fscrypt_do_page_crypto(inode, FS_DECRYPT, lblk_num, page, page,
 				      len, offs, GFP_NOFS);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 025/293] media: mc-device.c: dont memset __user pointer contents
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (23 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 024/293] fscrypt: clean up some BUG_ON()s in block encryption/decryption Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 026/293] media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails Greg Kroah-Hartman
                   ` (273 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Hans Verkuil, Sakari Ailus,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 518fa4e0e0da97ea2e17c95ab57647ce748a96e2 ]

You can't memset the contents of a __user pointer. Instead, call copy_to_user to
copy links.reserved (which is zeroed) to the user memory.

This fixes this sparse warning:

SPARSE:drivers/media/mc/mc-device.c drivers/media/mc/mc-device.c:521:16:  warning: incorrect type in argument 1 (different address spaces)

Fixes: f49308878d720 ("media: media_device_enum_links32: clean a reserved field")

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/media-device.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index a6d56154fac7..4eb51a618fe1 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -486,8 +486,9 @@ static long media_device_enum_links32(struct media_device *mdev,
 	if (ret)
 		return ret;
 
-	memset(ulinks->reserved, 0, sizeof(ulinks->reserved));
-
+	if (copy_to_user(ulinks->reserved, links.reserved,
+			 sizeof(ulinks->reserved)))
+		return -EFAULT;
 	return 0;
 }
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 026/293] media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (24 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 025/293] media: mc-device.c: dont memset __user pointer contents Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 027/293] net: phy: Check against net_device being NULL Greg Kroah-Hartman
                   ` (272 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Shailendra Verma,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 6995a659101bd4effa41cebb067f9dc18d77520d ]

Fix to avoid possible memory leak if the decoder initialization
got failed.Free the allocated memory for file handle object
before return in case decoder initialization fails.

Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/davinci_vpfe/vpfe_video.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index 155e8c758e4b..346e60d230f3 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -422,6 +422,9 @@ static int vpfe_open(struct file *file)
 	/* If decoder is not initialized. initialize it */
 	if (!video->initialized && vpfe_update_pipe_state(video)) {
 		mutex_unlock(&video->lock);
+		v4l2_fh_del(&handle->vfh);
+		v4l2_fh_exit(&handle->vfh);
+		kfree(handle);
 		return -ENODEV;
 	}
 	/* Increment device users counter */
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 027/293] net: phy: Check against net_device being NULL
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (25 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 026/293] media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 028/293] crypto: talitos - properly handle split ICV Greg Kroah-Hartman
                   ` (271 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Ioana Ciornei, Andrew Lunn,
	Florian Fainelli, David S. Miller, Sasha Levin

[ Upstream commit 82c76aca81187b3d28a6fb3062f6916450ce955e ]

In general, we don't want MAC drivers calling phy_attach_direct with the
net_device being NULL. Add checks against this in all the functions
calling it: phy_attach() and phy_connect_direct().

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phy_device.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index c433be573e0d..ed7e3c70b511 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -729,6 +729,9 @@ int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
 {
 	int rc;
 
+	if (!dev)
+		return -EINVAL;
+
 	rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface);
 	if (rc)
 		return rc;
@@ -1067,6 +1070,9 @@ struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
 	struct device *d;
 	int rc;
 
+	if (!dev)
+		return ERR_PTR(-EINVAL);
+
 	/* Search the list of PHY devices on the mdio bus for the
 	 * PHY with the requested name
 	 */
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 028/293] crypto: talitos - properly handle split ICV.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (26 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 027/293] net: phy: Check against net_device being NULL Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 029/293] crypto: talitos - Align SEC1 accesses to 32 bits boundaries Greg Kroah-Hartman
                   ` (270 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Christophe Leroy, Herbert Xu, Sasha Levin

[ Upstream commit eae55a586c3c8b50982bad3c3426e9c9dd7a0075 ]

The driver assumes that the ICV is as a single piece in the last
element of the scatterlist. This assumption is wrong.

This patch ensures that the ICV is properly handled regardless of
the scatterlist layout.

Fixes: 9c4a79653b35 ("crypto: talitos - Freescale integrated security engine (SEC) driver")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/talitos.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 8707607039d3..62dca638105d 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -984,7 +984,6 @@ static void ipsec_esp_encrypt_done(struct device *dev,
 	struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
 	unsigned int authsize = crypto_aead_authsize(authenc);
 	struct talitos_edesc *edesc;
-	struct scatterlist *sg;
 	void *icvdata;
 
 	edesc = container_of(desc, struct talitos_edesc, desc);
@@ -998,9 +997,8 @@ static void ipsec_esp_encrypt_done(struct device *dev,
 		else
 			icvdata = &edesc->link_tbl[edesc->src_nents +
 						   edesc->dst_nents + 2];
-		sg = sg_last(areq->dst, edesc->dst_nents);
-		memcpy((char *)sg_virt(sg) + sg->length - authsize,
-		       icvdata, authsize);
+		sg_pcopy_from_buffer(areq->dst, edesc->dst_nents ? : 1, icvdata,
+				     authsize, areq->assoclen + areq->cryptlen);
 	}
 
 	kfree(edesc);
@@ -1016,7 +1014,6 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
 	struct crypto_aead *authenc = crypto_aead_reqtfm(req);
 	unsigned int authsize = crypto_aead_authsize(authenc);
 	struct talitos_edesc *edesc;
-	struct scatterlist *sg;
 	char *oicv, *icv;
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
@@ -1026,9 +1023,18 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
 	ipsec_esp_unmap(dev, edesc, req);
 
 	if (!err) {
+		char icvdata[SHA512_DIGEST_SIZE];
+		int nents = edesc->dst_nents ? : 1;
+		unsigned int len = req->assoclen + req->cryptlen;
+
 		/* auth check */
-		sg = sg_last(req->dst, edesc->dst_nents ? : 1);
-		icv = (char *)sg_virt(sg) + sg->length - authsize;
+		if (nents > 1) {
+			sg_pcopy_to_buffer(req->dst, nents, icvdata, authsize,
+					   len - authsize);
+			icv = icvdata;
+		} else {
+			icv = (char *)sg_virt(req->dst) + len - authsize;
+		}
 
 		if (edesc->dma_len) {
 			if (is_sec1)
@@ -1458,7 +1464,6 @@ static int aead_decrypt(struct aead_request *req)
 	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
 	struct talitos_private *priv = dev_get_drvdata(ctx->dev);
 	struct talitos_edesc *edesc;
-	struct scatterlist *sg;
 	void *icvdata;
 
 	req->cryptlen -= authsize;
@@ -1493,9 +1498,8 @@ static int aead_decrypt(struct aead_request *req)
 	else
 		icvdata = &edesc->link_tbl[0];
 
-	sg = sg_last(req->src, edesc->src_nents ? : 1);
-
-	memcpy(icvdata, (char *)sg_virt(sg) + sg->length - authsize, authsize);
+	sg_pcopy_to_buffer(req->src, edesc->src_nents ? : 1, icvdata, authsize,
+			   req->assoclen + req->cryptlen - authsize);
 
 	return ipsec_esp(edesc, req, ipsec_esp_decrypt_swauth_done);
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 029/293] crypto: talitos - Align SEC1 accesses to 32 bits boundaries.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (27 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 028/293] crypto: talitos - properly handle split ICV Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 030/293] tua6100: Avoid build warnings Greg Kroah-Hartman
                   ` (269 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Christophe Leroy, Herbert Xu, Sasha Levin

[ Upstream commit c9cca7034b34a2d82e9a03b757de2485c294851c ]

The MPC885 reference manual states:

SEC Lite-initiated 8xx writes can occur only on 32-bit-word boundaries, but
reads can occur on any byte boundary. Writing back a header read from a
non-32-bit-word boundary will yield unpredictable results.

In order to ensure that, cra_alignmask is set to 3 for SEC1.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 9c4a79653b35 ("crypto: talitos - Freescale integrated security engine (SEC) driver")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/talitos.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 62dca638105d..a0cd4f6085d0 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -3119,7 +3119,10 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
 		alg->cra_priority = t_alg->algt.priority;
 	else
 		alg->cra_priority = TALITOS_CRA_PRIORITY;
-	alg->cra_alignmask = 0;
+	if (has_ftr_sec1(priv))
+		alg->cra_alignmask = 3;
+	else
+		alg->cra_alignmask = 0;
 	alg->cra_ctxsize = sizeof(struct talitos_ctx);
 	alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY;
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 030/293] tua6100: Avoid build warnings.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (28 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 029/293] crypto: talitos - Align SEC1 accesses to 32 bits boundaries Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 031/293] locking/lockdep: Fix merging of hlocks with non-zero references Greg Kroah-Hartman
                   ` (268 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, David S. Miller, Sasha Levin

[ Upstream commit 621ccc6cc5f8d6730b740d31d4818227866c93c9 ]

Rename _P to _P_VAL and _R to _R_VAL to avoid global
namespace conflicts:

drivers/media/dvb-frontends/tua6100.c: In function ‘tua6100_set_params’:
drivers/media/dvb-frontends/tua6100.c:79: warning: "_P" redefined
 #define _P 32

In file included from ./include/acpi/platform/aclinux.h:54,
                 from ./include/acpi/platform/acenv.h:152,
                 from ./include/acpi/acpi.h:22,
                 from ./include/linux/acpi.h:34,
                 from ./include/linux/i2c.h:17,
                 from drivers/media/dvb-frontends/tua6100.h:30,
                 from drivers/media/dvb-frontends/tua6100.c:32:
./include/linux/ctype.h:14: note: this is the location of the previous definition
 #define _P 0x10 /* punct */

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/dvb-frontends/tua6100.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/media/dvb-frontends/tua6100.c b/drivers/media/dvb-frontends/tua6100.c
index 18e6d4c5be21..859fa14b319c 100644
--- a/drivers/media/dvb-frontends/tua6100.c
+++ b/drivers/media/dvb-frontends/tua6100.c
@@ -75,8 +75,8 @@ static int tua6100_set_params(struct dvb_frontend *fe)
 	struct i2c_msg msg1 = { .addr = priv->i2c_address, .flags = 0, .buf = reg1, .len = 4 };
 	struct i2c_msg msg2 = { .addr = priv->i2c_address, .flags = 0, .buf = reg2, .len = 3 };
 
-#define _R 4
-#define _P 32
+#define _R_VAL 4
+#define _P_VAL 32
 #define _ri 4000000
 
 	// setup register 0
@@ -91,14 +91,14 @@ static int tua6100_set_params(struct dvb_frontend *fe)
 	else
 		reg1[1] = 0x0c;
 
-	if (_P == 64)
+	if (_P_VAL == 64)
 		reg1[1] |= 0x40;
 	if (c->frequency >= 1525000)
 		reg1[1] |= 0x80;
 
 	// register 2
-	reg2[1] = (_R >> 8) & 0x03;
-	reg2[2] = _R;
+	reg2[1] = (_R_VAL >> 8) & 0x03;
+	reg2[2] = _R_VAL;
 	if (c->frequency < 1455000)
 		reg2[1] |= 0x1c;
 	else if (c->frequency < 1630000)
@@ -110,18 +110,18 @@ static int tua6100_set_params(struct dvb_frontend *fe)
 	 * The N divisor ratio (note: c->frequency is in kHz, but we
 	 * need it in Hz)
 	 */
-	prediv = (c->frequency * _R) / (_ri / 1000);
-	div = prediv / _P;
+	prediv = (c->frequency * _R_VAL) / (_ri / 1000);
+	div = prediv / _P_VAL;
 	reg1[1] |= (div >> 9) & 0x03;
 	reg1[2] = div >> 1;
 	reg1[3] = (div << 7);
-	priv->frequency = ((div * _P) * (_ri / 1000)) / _R;
+	priv->frequency = ((div * _P_VAL) * (_ri / 1000)) / _R_VAL;
 
 	// Finally, calculate and store the value for A
-	reg1[3] |= (prediv - (div*_P)) & 0x7f;
+	reg1[3] |= (prediv - (div*_P_VAL)) & 0x7f;
 
-#undef _R
-#undef _P
+#undef _R_VAL
+#undef _P_VAL
 #undef _ri
 
 	if (fe->ops.i2c_gate_ctrl)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 031/293] locking/lockdep: Fix merging of hlocks with non-zero references
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (29 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 030/293] tua6100: Avoid build warnings Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 032/293] media: wl128x: Fix some error handling in fm_v4l2_init_video_device() Greg Kroah-Hartman
                   ` (267 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Imre Deak, Peter Zijlstra (Intel),
	Ville Syrjälä,
	Linus Torvalds, Thomas Gleixner, Will Deacon, Ingo Molnar,
	Sasha Levin

[ Upstream commit d9349850e188b8b59e5322fda17ff389a1c0cd7d ]

The sequence

	static DEFINE_WW_CLASS(test_ww_class);

	struct ww_acquire_ctx ww_ctx;
	struct ww_mutex ww_lock_a;
	struct ww_mutex ww_lock_b;
	struct ww_mutex ww_lock_c;
	struct mutex lock_c;

	ww_acquire_init(&ww_ctx, &test_ww_class);

	ww_mutex_init(&ww_lock_a, &test_ww_class);
	ww_mutex_init(&ww_lock_b, &test_ww_class);
	ww_mutex_init(&ww_lock_c, &test_ww_class);

	mutex_init(&lock_c);

	ww_mutex_lock(&ww_lock_a, &ww_ctx);

	mutex_lock(&lock_c);

	ww_mutex_lock(&ww_lock_b, &ww_ctx);
	ww_mutex_lock(&ww_lock_c, &ww_ctx);

	mutex_unlock(&lock_c);	(*)

	ww_mutex_unlock(&ww_lock_c);
	ww_mutex_unlock(&ww_lock_b);
	ww_mutex_unlock(&ww_lock_a);

	ww_acquire_fini(&ww_ctx); (**)

will trigger the following error in __lock_release() when calling
mutex_release() at **:

	DEBUG_LOCKS_WARN_ON(depth <= 0)

The problem is that the hlock merging happening at * updates the
references for test_ww_class incorrectly to 3 whereas it should've
updated it to 4 (representing all the instances for ww_ctx and
ww_lock_[abc]).

Fix this by updating the references during merging correctly taking into
account that we can have non-zero references (both for the hlock that we
merge into another hlock or for the hlock we are merging into).

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Link: https://lkml.kernel.org/r/20190524201509.9199-2-imre.deak@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/locking/lockdep.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index bf694c709b96..565005a3b8f0 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3402,17 +3402,17 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 	if (depth && !cross_lock(lock)) {
 		hlock = curr->held_locks + depth - 1;
 		if (hlock->class_idx == class_idx && nest_lock) {
-			if (hlock->references) {
-				/*
-				 * Check: unsigned int references:12, overflow.
-				 */
-				if (DEBUG_LOCKS_WARN_ON(hlock->references == (1 << 12)-1))
-					return 0;
+			if (!references)
+				references++;
 
+			if (!hlock->references)
 				hlock->references++;
-			} else {
-				hlock->references = 2;
-			}
+
+			hlock->references += references;
+
+			/* Overflow */
+			if (DEBUG_LOCKS_WARN_ON(hlock->references < references))
+				return 0;
 
 			return 1;
 		}
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 032/293] media: wl128x: Fix some error handling in fm_v4l2_init_video_device()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (30 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 031/293] locking/lockdep: Fix merging of hlocks with non-zero references Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 033/293] cpupower : frequency-set -r option misses the last cpu in related cpu list Greg Kroah-Hartman
                   ` (266 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Hans Verkuil, Hulk Robot,
	Kefeng Wang, Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 69fbb3f47327d959830c94bf31893972b8c8f700 ]

X-Originating-IP: [10.175.113.25]
X-CFilter-Loop: Reflected
The fm_v4l2_init_video_device() forget to unregister v4l2/video device
in the error path, it could lead to UAF issue, eg,

  BUG: KASAN: use-after-free in atomic64_read include/asm-generic/atomic-instrumented.h:836 [inline]
  BUG: KASAN: use-after-free in atomic_long_read include/asm-generic/atomic-long.h:28 [inline]
  BUG: KASAN: use-after-free in __mutex_unlock_slowpath+0x92/0x690 kernel/locking/mutex.c:1206
  Read of size 8 at addr ffff8881e84a7c70 by task v4l_id/3659

  CPU: 1 PID: 3659 Comm: v4l_id Not tainted 5.1.0 #8
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
  Call Trace:
   __dump_stack lib/dump_stack.c:77 [inline]
   dump_stack+0xa9/0x10e lib/dump_stack.c:113
   print_address_description+0x65/0x270 mm/kasan/report.c:187
   kasan_report+0x149/0x18d mm/kasan/report.c:317
   atomic64_read include/asm-generic/atomic-instrumented.h:836 [inline]
   atomic_long_read include/asm-generic/atomic-long.h:28 [inline]
   __mutex_unlock_slowpath+0x92/0x690 kernel/locking/mutex.c:1206
   fm_v4l2_fops_open+0xac/0x120 [fm_drv]
   v4l2_open+0x191/0x390 [videodev]
   chrdev_open+0x20d/0x570 fs/char_dev.c:417
   do_dentry_open+0x700/0xf30 fs/open.c:777
   do_last fs/namei.c:3416 [inline]
   path_openat+0x7c4/0x2a90 fs/namei.c:3532
   do_filp_open+0x1a5/0x2b0 fs/namei.c:3563
   do_sys_open+0x302/0x490 fs/open.c:1069
   do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290
   entry_SYSCALL_64_after_hwframe+0x49/0xbe
  RIP: 0033:0x7f8180c17c8e
  ...
  Allocated by task 3642:
   set_track mm/kasan/common.c:87 [inline]
   __kasan_kmalloc.constprop.3+0xa0/0xd0 mm/kasan/common.c:497
   fm_drv_init+0x13/0x1000 [fm_drv]
   do_one_initcall+0xbc/0x47d init/main.c:901
   do_init_module+0x1b5/0x547 kernel/module.c:3456
   load_module+0x6405/0x8c10 kernel/module.c:3804
   __do_sys_finit_module+0x162/0x190 kernel/module.c:3898
   do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290
   entry_SYSCALL_64_after_hwframe+0x49/0xbe

  Freed by task 3642:
   set_track mm/kasan/common.c:87 [inline]
   __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459
   slab_free_hook mm/slub.c:1429 [inline]
   slab_free_freelist_hook mm/slub.c:1456 [inline]
   slab_free mm/slub.c:3003 [inline]
   kfree+0xe1/0x270 mm/slub.c:3958
   fm_drv_init+0x1e6/0x1000 [fm_drv]
   do_one_initcall+0xbc/0x47d init/main.c:901
   do_init_module+0x1b5/0x547 kernel/module.c:3456
   load_module+0x6405/0x8c10 kernel/module.c:3804
   __do_sys_finit_module+0x162/0x190 kernel/module.c:3898
   do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290
   entry_SYSCALL_64_after_hwframe+0x49/0xbe

Add relevant unregister functions to fix it.

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/radio/wl128x/fmdrv_v4l2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
index fc5a7abc83d2..77778c86e04d 100644
--- a/drivers/media/radio/wl128x/fmdrv_v4l2.c
+++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c
@@ -549,6 +549,7 @@ int fm_v4l2_init_video_device(struct fmdev *fmdev, int radio_nr)
 
 	/* Register with V4L2 subsystem as RADIO device */
 	if (video_register_device(&gradio_dev, VFL_TYPE_RADIO, radio_nr)) {
+		v4l2_device_unregister(&fmdev->v4l2_dev);
 		fmerr("Could not register video device\n");
 		return -ENOMEM;
 	}
@@ -562,6 +563,8 @@ int fm_v4l2_init_video_device(struct fmdev *fmdev, int radio_nr)
 	if (ret < 0) {
 		fmerr("(fmdev): Can't init ctrl handler\n");
 		v4l2_ctrl_handler_free(&fmdev->ctrl_handler);
+		video_unregister_device(fmdev->radio_dev);
+		v4l2_device_unregister(&fmdev->v4l2_dev);
 		return -EBUSY;
 	}
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 033/293] cpupower : frequency-set -r option misses the last cpu in related cpu list
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (31 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 032/293] media: wl128x: Fix some error handling in fm_v4l2_init_video_device() Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 034/293] net: stmmac: dwmac4: fix flow control issue Greg Kroah-Hartman
                   ` (265 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Abhishek Goel, Thomas Renninger,
	Shuah Khan, Sasha Levin

[ Upstream commit 04507c0a9385cc8280f794a36bfff567c8cc1042 ]

To set frequency on specific cpus using cpupower, following syntax can
be used :
cpupower -c #i frequency-set -f #f -r

While setting frequency using cpupower frequency-set command, if we use
'-r' option, it is expected to set frequency for all cpus related to
cpu #i. But it is observed to be missing the last cpu in related cpu
list. This patch fixes the problem.

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/cpupower/utils/cpufreq-set.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c
index 1eef0aed6423..08a405593a79 100644
--- a/tools/power/cpupower/utils/cpufreq-set.c
+++ b/tools/power/cpupower/utils/cpufreq-set.c
@@ -306,6 +306,8 @@ int cmd_freq_set(int argc, char **argv)
 				bitmask_setbit(cpus_chosen, cpus->cpu);
 				cpus = cpus->next;
 			}
+			/* Set the last cpu in related cpus list */
+			bitmask_setbit(cpus_chosen, cpus->cpu);
 			cpufreq_put_related_cpus(cpus);
 		}
 	}
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 034/293] net: stmmac: dwmac4: fix flow control issue
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (32 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 033/293] cpupower : frequency-set -r option misses the last cpu in related cpu list Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 035/293] net: fec: Do not use netdev messages too early Greg Kroah-Hartman
                   ` (264 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Biao Huang, David S. Miller, Sasha Levin

[ Upstream commit ee326fd01e79dfa42014d55931260b68b9fa3273 ]

Current dwmac4_flow_ctrl will not clear
GMAC_RX_FLOW_CTRL_RFE/GMAC_RX_FLOW_CTRL_RFE bits,
so MAC hw will keep flow control on although expecting
flow control off by ethtool. Add codes to fix it.

Fixes: 477286b53f55 ("stmmac: add GMAC4 core support")
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index ed5fcd4994f2..8445af580cb6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -474,8 +474,9 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
 	if (fc & FLOW_RX) {
 		pr_debug("\tReceive Flow-Control ON\n");
 		flow |= GMAC_RX_FLOW_CTRL_RFE;
-		writel(flow, ioaddr + GMAC_RX_FLOW_CTRL);
 	}
+	writel(flow, ioaddr + GMAC_RX_FLOW_CTRL);
+
 	if (fc & FLOW_TX) {
 		pr_debug("\tTransmit Flow-Control ON\n");
 
@@ -483,7 +484,7 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
 			pr_debug("\tduplex mode: PAUSE %d\n", pause_time);
 
 		for (queue = 0; queue < tx_cnt; queue++) {
-			flow |= GMAC_TX_FLOW_CTRL_TFE;
+			flow = GMAC_TX_FLOW_CTRL_TFE;
 
 			if (duplex)
 				flow |=
@@ -491,6 +492,9 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
 
 			writel(flow, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue));
 		}
+	} else {
+		for (queue = 0; queue < tx_cnt; queue++)
+			writel(0, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue));
 	}
 }
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 035/293] net: fec: Do not use netdev messages too early
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (33 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 034/293] net: stmmac: dwmac4: fix flow control issue Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 036/293] net: axienet: Fix race condition causing TX hang Greg Kroah-Hartman
                   ` (263 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Fabio Estevam, David S. Miller, Sasha Levin

[ Upstream commit a19a0582363b9a5f8ba812f34f1b8df394898780 ]

When a valid MAC address is not found the current messages
are shown:

fec 2188000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
fec 2188000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: aa:9f:25:eb:7e:aa

Since the network device has not been registered at this point, it is better
to use dev_err()/dev_info() instead, which will provide cleaner log
messages like these:

fec 2188000.ethernet: Invalid MAC address: 00:00:00:00:00:00
fec 2188000.ethernet: Using random MAC address: aa:9f:25:eb:7e:aa

Tested on a imx6dl-pico-pi board.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/fec_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 98cd53d380f7..0ae6532b02e0 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1690,10 +1690,10 @@ static void fec_get_mac(struct net_device *ndev)
 	 */
 	if (!is_valid_ether_addr(iap)) {
 		/* Report it and use a random ethernet address instead */
-		netdev_err(ndev, "Invalid MAC address: %pM\n", iap);
+		dev_err(&fep->pdev->dev, "Invalid MAC address: %pM\n", iap);
 		eth_hw_addr_random(ndev);
-		netdev_info(ndev, "Using random MAC address: %pM\n",
-			    ndev->dev_addr);
+		dev_info(&fep->pdev->dev, "Using random MAC address: %pM\n",
+			 ndev->dev_addr);
 		return;
 	}
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 036/293] net: axienet: Fix race condition causing TX hang
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (34 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 035/293] net: fec: Do not use netdev messages too early Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 037/293] s390/qdio: handle PENDING state for QEBSM devices Greg Kroah-Hartman
                   ` (262 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Robert Hancock, David S. Miller, Sasha Levin

[ Upstream commit 7de44285c1f69ccfbe8be1d6a16fcd956681fee6 ]

It is possible that the interrupt handler fires and frees up space in
the TX ring in between checking for sufficient TX ring space and
stopping the TX queue in axienet_start_xmit. If this happens, the
queue wake from the interrupt handler will occur before the queue is
stopped, causing a lost wakeup and the adapter's transmit hanging.

To avoid this, after stopping the queue, check again whether there is
sufficient space in the TX ring. If so, wake up the queue again.

Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/xilinx/xilinx_axienet_main.c | 20 ++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index d46dc8cd1670..b481cb174b23 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -614,6 +614,10 @@ static void axienet_start_xmit_done(struct net_device *ndev)
 
 	ndev->stats.tx_packets += packets;
 	ndev->stats.tx_bytes += size;
+
+	/* Matches barrier in axienet_start_xmit */
+	smp_mb();
+
 	netif_wake_queue(ndev);
 }
 
@@ -668,9 +672,19 @@ static int axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
 
 	if (axienet_check_tx_bd_space(lp, num_frag)) {
-		if (!netif_queue_stopped(ndev))
-			netif_stop_queue(ndev);
-		return NETDEV_TX_BUSY;
+		if (netif_queue_stopped(ndev))
+			return NETDEV_TX_BUSY;
+
+		netif_stop_queue(ndev);
+
+		/* Matches barrier in axienet_start_xmit_done */
+		smp_mb();
+
+		/* Space might have just been freed - check again */
+		if (axienet_check_tx_bd_space(lp, num_frag))
+			return NETDEV_TX_BUSY;
+
+		netif_wake_queue(ndev);
 	}
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 037/293] s390/qdio: handle PENDING state for QEBSM devices
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (35 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 036/293] net: axienet: Fix race condition causing TX hang Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 038/293] RAS/CEC: Fix pfn insertion Greg Kroah-Hartman
                   ` (261 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Julian Wiedmann, Heiko Carstens, Sasha Levin

[ Upstream commit 04310324c6f482921c071444833e70fe861b73d9 ]

When a CQ-enabled device uses QEBSM for SBAL state inspection,
get_buf_states() can return the PENDING state for an Output Queue.
get_outbound_buffer_frontier() isn't prepared for this, and any PENDING
buffer will permanently stall all further completion processing on this
Queue.

This isn't a concern for non-QEBSM devices, as get_buf_states() for such
devices will manually turn PENDING buffers into EMPTY ones.

Fixes: 104ea556ee7f ("qdio: support asynchronous delivery of storage blocks")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/s390/cio/qdio_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index c7afdbded26b..ab8dd81fbc2b 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -759,6 +759,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
 
 	switch (state) {
 	case SLSB_P_OUTPUT_EMPTY:
+	case SLSB_P_OUTPUT_PENDING:
 		/* the adapter got it */
 		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr,
 			"out empty:%1d %02x", q->nr, count);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 038/293] RAS/CEC: Fix pfn insertion
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (36 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 037/293] s390/qdio: handle PENDING state for QEBSM devices Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 039/293] net: sfp: add mutex to prevent concurrent state checks Greg Kroah-Hartman
                   ` (260 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Borislav Petkov, Tony Luck,
	linux-edac, Sasha Levin

[ Upstream commit 6d8e294bf5f0e85c34e8b14b064e2965f53f38b0 ]

When inserting random PFNs for debugging the CEC through
(debugfs)/ras/cec/pfn, depending on the return value of pfn_set(),
multiple values get inserted per a single write.

That is because simple_attr_write() interprets a retval of 0 as
success and claims the whole input. However, pfn_set() returns the
cec_add_elem() value, which, if > 0 and smaller than the whole input
length, makes glibc continue issuing the write syscall until there's
input left:

  pfn_set
  simple_attr_write
  debugfs_attr_write
  full_proxy_write
  vfs_write
  ksys_write
  do_syscall_64
  entry_SYSCALL_64_after_hwframe

leading to those repeated calls.

Return 0 to fix that.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ras/cec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c
index c7205cdcc11a..97cf40a522be 100644
--- a/drivers/ras/cec.c
+++ b/drivers/ras/cec.c
@@ -373,7 +373,9 @@ static int pfn_set(void *data, u64 val)
 {
 	*(u64 *)data = val;
 
-	return cec_add_elem(val);
+	cec_add_elem(val);
+
+	return 0;
 }
 
 DEFINE_DEBUGFS_ATTRIBUTE(pfn_ops, u64_get, pfn_set, "0x%llx\n");
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 039/293] net: sfp: add mutex to prevent concurrent state checks
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (37 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 038/293] RAS/CEC: Fix pfn insertion Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 040/293] ipset: Fix memory accounting for hash types on resize Greg Kroah-Hartman
                   ` (259 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Russell King, Robert Hancock,
	David S. Miller, Sasha Levin

[ Upstream commit 2158e856f56bb762ef90f3ec244d41a519826f75 ]

sfp_check_state can potentially be called by both a threaded IRQ handler
and delayed work. If it is concurrently called, it could result in
incorrect state management. Add a st_mutex to protect the state - this
lock gets taken outside of code that checks and handle state changes, and
the existing sm_mutex nests inside of it.

Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/sfp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 2dcb25aa0452..9cef89fe410d 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -115,10 +115,11 @@ struct sfp {
 	struct gpio_desc *gpio[GPIO_MAX];
 
 	bool attached;
+	struct mutex st_mutex;			/* Protects state */
 	unsigned int state;
 	struct delayed_work poll;
 	struct delayed_work timeout;
-	struct mutex sm_mutex;
+	struct mutex sm_mutex;			/* Protects state machine */
 	unsigned char sm_mod_state;
 	unsigned char sm_dev_state;
 	unsigned short sm_state;
@@ -738,6 +739,7 @@ static void sfp_check_state(struct sfp *sfp)
 {
 	unsigned int state, i, changed;
 
+	mutex_lock(&sfp->st_mutex);
 	state = sfp_get_state(sfp);
 	changed = state ^ sfp->state;
 	changed &= SFP_F_PRESENT | SFP_F_LOS | SFP_F_TX_FAULT;
@@ -763,6 +765,7 @@ static void sfp_check_state(struct sfp *sfp)
 		sfp_sm_event(sfp, state & SFP_F_LOS ?
 				SFP_E_LOS_HIGH : SFP_E_LOS_LOW);
 	rtnl_unlock();
+	mutex_unlock(&sfp->st_mutex);
 }
 
 static irqreturn_t sfp_irq(int irq, void *data)
@@ -793,6 +796,7 @@ static struct sfp *sfp_alloc(struct device *dev)
 	sfp->dev = dev;
 
 	mutex_init(&sfp->sm_mutex);
+	mutex_init(&sfp->st_mutex);
 	INIT_DELAYED_WORK(&sfp->poll, sfp_poll);
 	INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 040/293] ipset: Fix memory accounting for hash types on resize
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (38 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 039/293] net: sfp: add mutex to prevent concurrent state checks Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 041/293] perf cs-etm: Properly set the value of old and head in snapshot mode Greg Kroah-Hartman
                   ` (258 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, NOYB, Stefano Brivio,
	Jozsef Kadlecsik, Sasha Levin

[ Upstream commit 11921796f4799ca9c61c4b22cc54d84aa69f8a35 ]

If a fresh array block is allocated during resize, the current in-memory
set size should be increased by the size of the block, not replaced by it.

Before the fix, adding entries to a hash set type, leading to a table
resize, caused an inconsistent memory size to be reported. This becomes
more obvious when swapping sets with similar sizes:

  # cat hash_ip_size.sh
  #!/bin/sh
  FAIL_RETRIES=10

  tries=0
  while [ ${tries} -lt ${FAIL_RETRIES} ]; do
  	ipset create t1 hash:ip
  	for i in `seq 1 4345`; do
  		ipset add t1 1.2.$((i / 255)).$((i % 255))
  	done
  	t1_init="$(ipset list t1|sed -n 's/Size in memory: \(.*\)/\1/p')"

  	ipset create t2 hash:ip
  	for i in `seq 1 4360`; do
  		ipset add t2 1.2.$((i / 255)).$((i % 255))
  	done
  	t2_init="$(ipset list t2|sed -n 's/Size in memory: \(.*\)/\1/p')"

  	ipset swap t1 t2
  	t1_swap="$(ipset list t1|sed -n 's/Size in memory: \(.*\)/\1/p')"
  	t2_swap="$(ipset list t2|sed -n 's/Size in memory: \(.*\)/\1/p')"

  	ipset destroy t1
  	ipset destroy t2
  	tries=$((tries + 1))

  	if [ ${t1_init} -lt 10000 ] || [ ${t2_init} -lt 10000 ]; then
  		echo "FAIL after ${tries} tries:"
  		echo "T1 size ${t1_init}, after swap ${t1_swap}"
  		echo "T2 size ${t2_init}, after swap ${t2_swap}"
  		exit 1
  	fi
  done
  echo "PASS"
  # echo -n 'func hash_ip4_resize +p' > /sys/kernel/debug/dynamic_debug/control
  # ./hash_ip_size.sh
  [ 2035.018673] attempt to resize set t1 from 10 to 11, t 00000000fe6551fa
  [ 2035.078583] set t1 resized from 10 (00000000fe6551fa) to 11 (00000000172a0163)
  [ 2035.080353] Table destroy by resize 00000000fe6551fa
  FAIL after 4 tries:
  T1 size 9064, after swap 71128
  T2 size 71128, after swap 9064

Reported-by: NOYB <JunkYardMail1@Frontier.com>
Fixes: 9e41f26a505c ("netfilter: ipset: Count non-static extension memory for userspace")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/ipset/ip_set_hash_gen.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index dfd268166e42..42d9cd22447e 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -624,7 +624,7 @@ mtype_resize(struct ip_set *set, bool retried)
 					goto cleanup;
 				}
 				m->size = AHASH_INIT_SIZE;
-				extsize = ext_size(AHASH_INIT_SIZE, dsize);
+				extsize += ext_size(AHASH_INIT_SIZE, dsize);
 				RCU_INIT_POINTER(hbucket(t, key), m);
 			} else if (m->pos >= m->size) {
 				struct hbucket *ht;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 041/293] perf cs-etm: Properly set the value of old and head in snapshot mode
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (39 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 040/293] ipset: Fix memory accounting for hash types on resize Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 042/293] perf test 6: Fix missing kvm module load for s390 Greg Kroah-Hartman
                   ` (257 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Mathieu Poirier, Leo Yan,
	Alexander Shishkin, Jiri Olsa, Peter Zijlstra, Suzuki Poulouse,
	linux-arm-kernel, Arnaldo Carvalho de Melo, Sasha Levin

[ Upstream commit e45c48a9a4d20ebc7b639a62c3ef8f4b08007027 ]

This patch adds the necessary intelligence to properly compute the value
of 'old' and 'head' when operating in snapshot mode.  That way we can
get the latest information in the AUX buffer and be compatible with the
generic AUX ring buffer mechanic.

Tester notes:

> Leo, have you had the chance to test/review this one? Suzuki?

Sure.  I applied this patch on the perf/core branch (with latest
commit 3e4fbf36c1e3 'perf augmented_raw_syscalls: Move reading
filename to the loop') and passed testing with below steps:

  # perf record -e cs_etm/@tmc_etr0/ -S -m,64 --per-thread ./sort &
  [1] 19097
  Bubble sorting array of 30000 elements

  # kill -USR2 19097
  # kill -USR2 19097
  # kill -USR2 19097
  [ perf record: Woken up 4 times to write data ]
  [ perf record: Captured and wrote 0.753 MB perf.data ]

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190605161633.12245-1-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/arch/arm/util/cs-etm.c | 127 +++++++++++++++++++++++++++++-
 1 file changed, 123 insertions(+), 4 deletions(-)

diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index fbfc055d3f4d..aec62e822bab 100644
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -43,6 +43,8 @@ struct cs_etm_recording {
 	struct auxtrace_record	itr;
 	struct perf_pmu		*cs_etm_pmu;
 	struct perf_evlist	*evlist;
+	int			wrapped_cnt;
+	bool			*wrapped;
 	bool			snapshot_mode;
 	size_t			snapshot_size;
 };
@@ -485,16 +487,131 @@ static int cs_etm_info_fill(struct auxtrace_record *itr,
 	return 0;
 }
 
-static int cs_etm_find_snapshot(struct auxtrace_record *itr __maybe_unused,
+static int cs_etm_alloc_wrapped_array(struct cs_etm_recording *ptr, int idx)
+{
+	bool *wrapped;
+	int cnt = ptr->wrapped_cnt;
+
+	/* Make @ptr->wrapped as big as @idx */
+	while (cnt <= idx)
+		cnt++;
+
+	/*
+	 * Free'ed in cs_etm_recording_free().  Using realloc() to avoid
+	 * cross compilation problems where the host's system supports
+	 * reallocarray() but not the target.
+	 */
+	wrapped = realloc(ptr->wrapped, cnt * sizeof(bool));
+	if (!wrapped)
+		return -ENOMEM;
+
+	wrapped[cnt - 1] = false;
+	ptr->wrapped_cnt = cnt;
+	ptr->wrapped = wrapped;
+
+	return 0;
+}
+
+static bool cs_etm_buffer_has_wrapped(unsigned char *buffer,
+				      size_t buffer_size, u64 head)
+{
+	u64 i, watermark;
+	u64 *buf = (u64 *)buffer;
+	size_t buf_size = buffer_size;
+
+	/*
+	 * We want to look the very last 512 byte (chosen arbitrarily) in
+	 * the ring buffer.
+	 */
+	watermark = buf_size - 512;
+
+	/*
+	 * @head is continuously increasing - if its value is equal or greater
+	 * than the size of the ring buffer, it has wrapped around.
+	 */
+	if (head >= buffer_size)
+		return true;
+
+	/*
+	 * The value of @head is somewhere within the size of the ring buffer.
+	 * This can be that there hasn't been enough data to fill the ring
+	 * buffer yet or the trace time was so long that @head has numerically
+	 * wrapped around.  To find we need to check if we have data at the very
+	 * end of the ring buffer.  We can reliably do this because mmap'ed
+	 * pages are zeroed out and there is a fresh mapping with every new
+	 * session.
+	 */
+
+	/* @head is less than 512 byte from the end of the ring buffer */
+	if (head > watermark)
+		watermark = head;
+
+	/*
+	 * Speed things up by using 64 bit transactions (see "u64 *buf" above)
+	 */
+	watermark >>= 3;
+	buf_size >>= 3;
+
+	/*
+	 * If we find trace data at the end of the ring buffer, @head has
+	 * been there and has numerically wrapped around at least once.
+	 */
+	for (i = watermark; i < buf_size; i++)
+		if (buf[i])
+			return true;
+
+	return false;
+}
+
+static int cs_etm_find_snapshot(struct auxtrace_record *itr,
 				int idx, struct auxtrace_mmap *mm,
-				unsigned char *data __maybe_unused,
+				unsigned char *data,
 				u64 *head, u64 *old)
 {
+	int err;
+	bool wrapped;
+	struct cs_etm_recording *ptr =
+			container_of(itr, struct cs_etm_recording, itr);
+
+	/*
+	 * Allocate memory to keep track of wrapping if this is the first
+	 * time we deal with this *mm.
+	 */
+	if (idx >= ptr->wrapped_cnt) {
+		err = cs_etm_alloc_wrapped_array(ptr, idx);
+		if (err)
+			return err;
+	}
+
+	/*
+	 * Check to see if *head has wrapped around.  If it hasn't only the
+	 * amount of data between *head and *old is snapshot'ed to avoid
+	 * bloating the perf.data file with zeros.  But as soon as *head has
+	 * wrapped around the entire size of the AUX ring buffer it taken.
+	 */
+	wrapped = ptr->wrapped[idx];
+	if (!wrapped && cs_etm_buffer_has_wrapped(data, mm->len, *head)) {
+		wrapped = true;
+		ptr->wrapped[idx] = true;
+	}
+
 	pr_debug3("%s: mmap index %d old head %zu new head %zu size %zu\n",
 		  __func__, idx, (size_t)*old, (size_t)*head, mm->len);
 
-	*old = *head;
-	*head += mm->len;
+	/* No wrap has occurred, we can just use *head and *old. */
+	if (!wrapped)
+		return 0;
+
+	/*
+	 * *head has wrapped around - adjust *head and *old to pickup the
+	 * entire content of the AUX buffer.
+	 */
+	if (*head >= mm->len) {
+		*old = *head - mm->len;
+	} else {
+		*head += mm->len;
+		*old = *head - mm->len;
+	}
 
 	return 0;
 }
@@ -535,6 +652,8 @@ static void cs_etm_recording_free(struct auxtrace_record *itr)
 {
 	struct cs_etm_recording *ptr =
 			container_of(itr, struct cs_etm_recording, itr);
+
+	zfree(&ptr->wrapped);
 	free(ptr);
 }
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 042/293] perf test 6: Fix missing kvm module load for s390
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (40 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 041/293] perf cs-etm: Properly set the value of old and head in snapshot mode Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 043/293] media: fdp1: Support M3N and E3 platforms Greg Kroah-Hartman
                   ` (256 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Thomas Richter,
	Christian Borntraeger, Heiko Carstens, Hendrik Brueckner,
	Arnaldo Carvalho de Melo, Sasha Levin

[ Upstream commit 53fe307dfd309e425b171f6272d64296a54f4dff ]

Command

   # perf test -Fv 6

fails with error

   running test 100 'kvm-s390:kvm_s390_create_vm' failed to parse
    event 'kvm-s390:kvm_s390_create_vm', err -1, str 'unknown tracepoint'
    event syntax error: 'kvm-s390:kvm_s390_create_vm'
                         \___ unknown tracepoint

when the kvm module is not loaded or not built in.

Fix this by adding a valid function which tests if the module
is loaded. Loaded modules (or builtin KVM support) have a
directory named
  /sys/kernel/debug/tracing/events/kvm-s390
for this tracepoint.

Check for existence of this directory.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20190604053504.43073-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/tests/parse-events.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index f0679613bd18..424b82a7d078 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -19,6 +19,32 @@
 #define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \
 			     PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD)
 
+#if defined(__s390x__)
+/* Return true if kvm module is available and loaded. Test this
+ * and retun success when trace point kvm_s390_create_vm
+ * exists. Otherwise this test always fails.
+ */
+static bool kvm_s390_create_vm_valid(void)
+{
+	char *eventfile;
+	bool rc = false;
+
+	eventfile = get_events_file("kvm-s390");
+
+	if (eventfile) {
+		DIR *mydir = opendir(eventfile);
+
+		if (mydir) {
+			rc = true;
+			closedir(mydir);
+		}
+		put_events_file(eventfile);
+	}
+
+	return rc;
+}
+#endif
+
 static int test__checkevent_tracepoint(struct perf_evlist *evlist)
 {
 	struct perf_evsel *evsel = perf_evlist__first(evlist);
@@ -1600,6 +1626,7 @@ static struct evlist_test test__events[] = {
 	{
 		.name  = "kvm-s390:kvm_s390_create_vm",
 		.check = test__checkevent_tracepoint,
+		.valid = kvm_s390_create_vm_valid,
 		.id    = 100,
 	},
 #endif
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 043/293] media: fdp1: Support M3N and E3 platforms
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (41 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 042/293] perf test 6: Fix missing kvm module load for s390 Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 044/293] iommu: Fix a leak in iommu_insert_resv_region Greg Kroah-Hartman
                   ` (255 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Kieran Bingham, Laurent Pinchart,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 4e8c120de9268fc26f583268b9d22e7d37c4595f ]

New Gen3 R-Car platforms incorporate the FDP1 with an updated version
register. No code change is required to support these targets, but they
will currently report an error stating that the device can not be
identified.

Update the driver to match against the new device types.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/rcar_fdp1.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/media/platform/rcar_fdp1.c b/drivers/media/platform/rcar_fdp1.c
index 3245bc45f4a0..a889332d5d30 100644
--- a/drivers/media/platform/rcar_fdp1.c
+++ b/drivers/media/platform/rcar_fdp1.c
@@ -261,6 +261,8 @@ MODULE_PARM_DESC(debug, "activate debug info");
 #define FD1_IP_H3_ES1			0x02010101
 #define FD1_IP_M3W			0x02010202
 #define FD1_IP_H3			0x02010203
+#define FD1_IP_M3N			0x02010204
+#define FD1_IP_E3			0x02010205
 
 /* LUTs */
 #define FD1_LUT_DIF_ADJ			0x1000
@@ -2369,6 +2371,12 @@ static int fdp1_probe(struct platform_device *pdev)
 	case FD1_IP_H3:
 		dprintk(fdp1, "FDP1 Version R-Car H3\n");
 		break;
+	case FD1_IP_M3N:
+		dprintk(fdp1, "FDP1 Version R-Car M3N\n");
+		break;
+	case FD1_IP_E3:
+		dprintk(fdp1, "FDP1 Version R-Car E3\n");
+		break;
 	default:
 		dev_err(fdp1->dev, "FDP1 Unidentifiable (0x%08x)\n",
 				hw_version);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 044/293] iommu: Fix a leak in iommu_insert_resv_region
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (42 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 043/293] media: fdp1: Support M3N and E3 platforms Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 045/293] gpio: omap: fix lack of irqstatus_raw0 for OMAP4 Greg Kroah-Hartman
                   ` (254 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Eric Auger, Joerg Roedel, Sasha Levin

[ Upstream commit ad0834dedaa15c3a176f783c0373f836e44b4700 ]

In case we expand an existing region, we unlink
this latter and insert the larger one. In
that case we should free the original region after
the insertion. Also we can immediately return.

Fixes: 6c65fb318e8b ("iommu: iommu_get_group_resv_regions")

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/iommu.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 3de5c0bcb5cc..1620a6f49989 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -205,18 +205,21 @@ static int iommu_insert_resv_region(struct iommu_resv_region *new,
 			pos = pos->next;
 		} else if ((start >= a) && (end <= b)) {
 			if (new->type == type)
-				goto done;
+				return 0;
 			else
 				pos = pos->next;
 		} else {
 			if (new->type == type) {
 				phys_addr_t new_start = min(a, start);
 				phys_addr_t new_end = max(b, end);
+				int ret;
 
 				list_del(&entry->list);
 				entry->start = new_start;
 				entry->length = new_end - new_start + 1;
-				iommu_insert_resv_region(entry, regions);
+				ret = iommu_insert_resv_region(entry, regions);
+				kfree(entry);
+				return ret;
 			} else {
 				pos = pos->next;
 			}
@@ -229,7 +232,6 @@ static int iommu_insert_resv_region(struct iommu_resv_region *new,
 		return -ENOMEM;
 
 	list_add_tail(&region->list, pos);
-done:
 	return 0;
 }
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 045/293] gpio: omap: fix lack of irqstatus_raw0 for OMAP4
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (43 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 044/293] iommu: Fix a leak in iommu_insert_resv_region Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 046/293] gpio: omap: ensure irq is enabled before wakeup Greg Kroah-Hartman
                   ` (253 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Russell King, Grygorii Strashko,
	Tony Lindgren, Linus Walleij, Sasha Levin

[ Upstream commit 64ea3e9094a1f13b96c33244a3fb3a0f45690bd2 ]

Commit 384ebe1c2849 ("gpio/omap: Add DT support to GPIO driver") added
the register definition tables to the gpio-omap driver. Subsequently to
that commit, commit 4e962e8998cc ("gpio/omap: remove cpu_is_omapxxxx()
checks from *_runtime_resume()") added definitions for irqstatus_raw*
registers to the legacy OMAP4 definitions, but missed the DT
definitions.

This causes an unintentional change of behaviour for the 1.101 errata
workaround on OMAP4 platforms. Fix this oversight.

Fixes: 4e962e8998cc ("gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-omap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 83c6843db50c..abe54659b1f4 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1604,6 +1604,8 @@ static struct omap_gpio_reg_offs omap4_gpio_regs = {
 	.clr_dataout =		OMAP4_GPIO_CLEARDATAOUT,
 	.irqstatus =		OMAP4_GPIO_IRQSTATUS0,
 	.irqstatus2 =		OMAP4_GPIO_IRQSTATUS1,
+	.irqstatus_raw0 =	OMAP4_GPIO_IRQSTATUSRAW0,
+	.irqstatus_raw1 =	OMAP4_GPIO_IRQSTATUSRAW1,
 	.irqenable =		OMAP4_GPIO_IRQSTATUSSET0,
 	.irqenable2 =		OMAP4_GPIO_IRQSTATUSSET1,
 	.set_irqenable =	OMAP4_GPIO_IRQSTATUSSET0,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 046/293] gpio: omap: ensure irq is enabled before wakeup
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (44 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 045/293] gpio: omap: fix lack of irqstatus_raw0 for OMAP4 Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 047/293] regmap: fix bulk writes on paged registers Greg Kroah-Hartman
                   ` (252 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Russell King, Grygorii Strashko,
	Tony Lindgren, Linus Walleij, Sasha Levin

[ Upstream commit c859e0d479b3b4f6132fc12637c51e01492f31f6 ]

Documentation states:

  NOTE: There must be a correlation between the wake-up enable and
  interrupt-enable registers. If a GPIO pin has a wake-up configured
  on it, it must also have the corresponding interrupt enabled (on
  one of the two interrupt lines).

Ensure that this condition is always satisfied by enabling the detection
events after enabling the interrupt, and disabling the detection before
disabling the interrupt.  This ensures interrupt/wakeup events can not
happen until both the wakeup and interrupt enables correlate.

If we do any clearing, clear between the interrupt enable/disable and
trigger setting.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-omap.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index abe54659b1f4..47e537a91dd8 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -790,9 +790,9 @@ static void omap_gpio_irq_shutdown(struct irq_data *d)
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
 	bank->irq_usage &= ~(BIT(offset));
-	omap_set_gpio_irqenable(bank, offset, 0);
-	omap_clear_gpio_irqstatus(bank, offset);
 	omap_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
+	omap_clear_gpio_irqstatus(bank, offset);
+	omap_set_gpio_irqenable(bank, offset, 0);
 	if (!LINE_USED(bank->mod_usage, offset))
 		omap_clear_gpio_debounce(bank, offset);
 	omap_disable_gpio_module(bank, offset);
@@ -834,8 +834,8 @@ static void omap_gpio_mask_irq(struct irq_data *d)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
-	omap_set_gpio_irqenable(bank, offset, 0);
 	omap_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
+	omap_set_gpio_irqenable(bank, offset, 0);
 	raw_spin_unlock_irqrestore(&bank->lock, flags);
 }
 
@@ -847,9 +847,6 @@ static void omap_gpio_unmask_irq(struct irq_data *d)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
-	if (trigger)
-		omap_set_gpio_triggering(bank, offset, trigger);
-
 	omap_set_gpio_irqenable(bank, offset, 1);
 
 	/*
@@ -857,9 +854,13 @@ static void omap_gpio_unmask_irq(struct irq_data *d)
 	 * is cleared, thus after the handler has run. OMAP4 needs this done
 	 * after enabing the interrupt to clear the wakeup status.
 	 */
-	if (bank->level_mask & BIT(offset))
+	if (bank->regs->leveldetect0 && bank->regs->wkup_en &&
+	    trigger & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
 		omap_clear_gpio_irqstatus(bank, offset);
 
+	if (trigger)
+		omap_set_gpio_triggering(bank, offset, trigger);
+
 	raw_spin_unlock_irqrestore(&bank->lock, flags);
 }
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 047/293] regmap: fix bulk writes on paged registers
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (45 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 046/293] gpio: omap: ensure irq is enabled before wakeup Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:18 ` [PATCH 4.14 048/293] bpf: silence warning messages in core Greg Kroah-Hartman
                   ` (251 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Srinivas Kandagatla, Mark Brown, Sasha Levin

[ Upstream commit db057679de3e9e6a03c1bcd5aee09b0d25fd9f5b ]

On buses like SlimBus and SoundWire which does not support
gather_writes yet in regmap, A bulk write on paged register
would be silently ignored after programming page.
This is because local variable 'ret' value in regmap_raw_write_impl()
gets reset to 0 once page register is written successfully and the
code below checks for 'ret' value to be -ENOTSUPP before linearising
the write buffer to send to bus->write().

Fix this by resetting the 'ret' value to -ENOTSUPP in cases where
gather_writes() is not supported or single register write is
not possible.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/regmap/regmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 8fd08023c0f5..013d0a2b3ba0 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1509,6 +1509,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 					     map->format.reg_bytes +
 					     map->format.pad_bytes,
 					     val, val_len);
+	else
+		ret = -ENOTSUPP;
 
 	/* If that didn't work fall back on linearising by hand. */
 	if (ret == -ENOTSUPP) {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 048/293] bpf: silence warning messages in core
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (46 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 047/293] regmap: fix bulk writes on paged registers Greg Kroah-Hartman
@ 2019-07-29 19:18 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 049/293] rcu: Force inlining of rcu_read_lock() Greg Kroah-Hartman
                   ` (250 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:18 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Valdis Kletnieks, Andrii Nakryiko,
	Daniel Borkmann, Sasha Levin

[ Upstream commit aee450cbe482a8c2f6fa5b05b178ef8b8ff107ca ]

Compiling kernel/bpf/core.c with W=1 causes a flood of warnings:

kernel/bpf/core.c:1198:65: warning: initialized field overwritten [-Woverride-init]
 1198 | #define BPF_INSN_3_TBL(x, y, z) [BPF_##x | BPF_##y | BPF_##z] = true
      |                                                                 ^~~~
kernel/bpf/core.c:1087:2: note: in expansion of macro 'BPF_INSN_3_TBL'
 1087 |  INSN_3(ALU, ADD,  X),   \
      |  ^~~~~~
kernel/bpf/core.c:1202:3: note: in expansion of macro 'BPF_INSN_MAP'
 1202 |   BPF_INSN_MAP(BPF_INSN_2_TBL, BPF_INSN_3_TBL),
      |   ^~~~~~~~~~~~
kernel/bpf/core.c:1198:65: note: (near initialization for 'public_insntable[12]')
 1198 | #define BPF_INSN_3_TBL(x, y, z) [BPF_##x | BPF_##y | BPF_##z] = true
      |                                                                 ^~~~
kernel/bpf/core.c:1087:2: note: in expansion of macro 'BPF_INSN_3_TBL'
 1087 |  INSN_3(ALU, ADD,  X),   \
      |  ^~~~~~
kernel/bpf/core.c:1202:3: note: in expansion of macro 'BPF_INSN_MAP'
 1202 |   BPF_INSN_MAP(BPF_INSN_2_TBL, BPF_INSN_3_TBL),
      |   ^~~~~~~~~~~~

98 copies of the above.

The attached patch silences the warnings, because we *know* we're overwriting
the default initializer. That leaves bpf/core.c with only 6 other warnings,
which become more visible in comparison.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/bpf/Makefile b/kernel/bpf/Makefile
index af3ab6164ff5..be282c135a66 100644
--- a/kernel/bpf/Makefile
+++ b/kernel/bpf/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-y := core.o
+CFLAGS_core.o += $(call cc-disable-warning, override-init)
 
 obj-$(CONFIG_BPF_SYSCALL) += syscall.o verifier.o inode.o helpers.o tnum.o
 obj-$(CONFIG_BPF_SYSCALL) += hashtab.o arraymap.o percpu_freelist.o bpf_lru_list.o lpm_trie.o map_in_map.o
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 049/293] rcu: Force inlining of rcu_read_lock()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (47 preceding siblings ...)
  2019-07-29 19:18 ` [PATCH 4.14 048/293] bpf: silence warning messages in core Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 050/293] x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS Greg Kroah-Hartman
                   ` (249 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Waiman Long, Paul E. McKenney, Sasha Levin

[ Upstream commit 6da9f775175e516fc7229ceaa9b54f8f56aa7924 ]

When debugging options are turned on, the rcu_read_lock() function
might not be inlined. This results in lockdep's print_lock() function
printing "rcu_read_lock+0x0/0x70" instead of rcu_read_lock()'s caller.
For example:

[   10.579995] =============================
[   10.584033] WARNING: suspicious RCU usage
[   10.588074] 4.18.0.memcg_v2+ #1 Not tainted
[   10.593162] -----------------------------
[   10.597203] include/linux/rcupdate.h:281 Illegal context switch in
RCU read-side critical section!
[   10.606220]
[   10.606220] other info that might help us debug this:
[   10.606220]
[   10.614280]
[   10.614280] rcu_scheduler_active = 2, debug_locks = 1
[   10.620853] 3 locks held by systemd/1:
[   10.624632]  #0: (____ptrval____) (&type->i_mutex_dir_key#5){.+.+}, at: lookup_slow+0x42/0x70
[   10.633232]  #1: (____ptrval____) (rcu_read_lock){....}, at: rcu_read_lock+0x0/0x70
[   10.640954]  #2: (____ptrval____) (rcu_read_lock){....}, at: rcu_read_lock+0x0/0x70

These "rcu_read_lock+0x0/0x70" strings are not providing any useful
information.  This commit therefore forces inlining of the rcu_read_lock()
function so that rcu_read_lock()'s caller is instead shown.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/rcupdate.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index f960c85cd9ec..8d570190e9b4 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -622,7 +622,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  * read-side critical sections may be preempted and they may also block, but
  * only when acquiring spinlocks that are subject to priority inheritance.
  */
-static inline void rcu_read_lock(void)
+static __always_inline void rcu_read_lock(void)
 {
 	__rcu_read_lock();
 	__acquire(RCU);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 050/293] x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (48 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 049/293] rcu: Force inlining of rcu_read_lock() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 051/293] blkcg, writeback: dead memcgs shouldnt contribute to writeback ownership arbitration Greg Kroah-Hartman
                   ` (248 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Aaron Lewis, Borislav Petkov,
	Jim Mattson, Fenghua Yu, Frederic Weisbecker, H. Peter Anvin,
	Ingo Molnar, Konrad Rzeszutek Wilk, marcorr, Peter Feiner,
	pshier, Robert Hoo, Thomas Gleixner, Thomas Lendacky, x86-ml,
	Sasha Levin

[ Upstream commit cbb99c0f588737ec98c333558922ce47e9a95827 ]

Add the CPUID enumeration for Intel's de-feature bits to accommodate
passing these de-features through to kvm guests.

These de-features are (from SDM vol 1, section 8.1.8):
 - X86_FEATURE_FDP_EXCPTN_ONLY: If CPUID.(EAX=07H,ECX=0H):EBX[bit 6] = 1, the
   data pointer (FDP) is updated only for the x87 non-control instructions that
   incur unmasked x87 exceptions.
 - X86_FEATURE_ZERO_FCS_FDS: If CPUID.(EAX=07H,ECX=0H):EBX[bit 13] = 1, the
   processor deprecates FCS and FDS; it saves each as 0000H.

Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jim Mattson <jmattson@google.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: marcorr@google.com
Cc: Peter Feiner <pfeiner@google.com>
Cc: pshier@google.com
Cc: Robert Hoo <robert.hu@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Lendacky <Thomas.Lendacky@amd.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190605220252.103406-1-aaronlewis@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/cpufeatures.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 48ef9ed8226d..4cb8315c521f 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -239,12 +239,14 @@
 #define X86_FEATURE_BMI1		( 9*32+ 3) /* 1st group bit manipulation extensions */
 #define X86_FEATURE_HLE			( 9*32+ 4) /* Hardware Lock Elision */
 #define X86_FEATURE_AVX2		( 9*32+ 5) /* AVX2 instructions */
+#define X86_FEATURE_FDP_EXCPTN_ONLY	( 9*32+ 6) /* "" FPU data pointer updated only on x87 exceptions */
 #define X86_FEATURE_SMEP		( 9*32+ 7) /* Supervisor Mode Execution Protection */
 #define X86_FEATURE_BMI2		( 9*32+ 8) /* 2nd group bit manipulation extensions */
 #define X86_FEATURE_ERMS		( 9*32+ 9) /* Enhanced REP MOVSB/STOSB instructions */
 #define X86_FEATURE_INVPCID		( 9*32+10) /* Invalidate Processor Context ID */
 #define X86_FEATURE_RTM			( 9*32+11) /* Restricted Transactional Memory */
 #define X86_FEATURE_CQM			( 9*32+12) /* Cache QoS Monitoring */
+#define X86_FEATURE_ZERO_FCS_FDS	( 9*32+13) /* "" Zero out FPU CS and FPU DS */
 #define X86_FEATURE_MPX			( 9*32+14) /* Memory Protection Extension */
 #define X86_FEATURE_RDT_A		( 9*32+15) /* Resource Director Technology Allocation */
 #define X86_FEATURE_AVX512F		( 9*32+16) /* AVX-512 Foundation */
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 051/293] blkcg, writeback: dead memcgs shouldnt contribute to writeback ownership arbitration
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (49 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 050/293] x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 052/293] xfrm: fix sa selector validation Greg Kroah-Hartman
                   ` (247 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Tejun Heo, Jan Kara, Jens Axboe, Sasha Levin

[ Upstream commit 6631142229005e1b1c311a09efe9fb3cfdac8559 ]

wbc_account_io() collects information on cgroup ownership of writeback
pages to determine which cgroup should own the inode.  Pages can stay
associated with dead memcgs but we want to avoid attributing IOs to
dead blkcgs as much as possible as the association is likely to be
stale.  However, currently, pages associated with dead memcgs
contribute to the accounting delaying and/or confusing the
arbitration.

Fix it by ignoring pages associated with dead memcgs.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fs-writeback.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 4d561ee08d05..9e8fde348d61 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -721,6 +721,7 @@ void wbc_detach_inode(struct writeback_control *wbc)
 void wbc_account_io(struct writeback_control *wbc, struct page *page,
 		    size_t bytes)
 {
+	struct cgroup_subsys_state *css;
 	int id;
 
 	/*
@@ -732,7 +733,12 @@ void wbc_account_io(struct writeback_control *wbc, struct page *page,
 	if (!wbc->wb)
 		return;
 
-	id = mem_cgroup_css_from_page(page)->id;
+	css = mem_cgroup_css_from_page(page);
+	/* dead cgroups shouldn't contribute to inode ownership arbitration */
+	if (!(css->flags & CSS_ONLINE))
+		return;
+
+	id = css->id;
 
 	if (id == wbc->wb_id) {
 		wbc->wb_bytes += bytes;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 052/293] xfrm: fix sa selector validation
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (50 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 051/293] blkcg, writeback: dead memcgs shouldnt contribute to writeback ownership arbitration Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 053/293] sched/core: Add __sched tag for io_schedule() Greg Kroah-Hartman
                   ` (246 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Anirudh Gupta, Nicolas Dichtel,
	Herbert Xu, Steffen Klassert, Sasha Levin

[ Upstream commit b8d6d0079757cbd1b69724cfd1c08e2171c68cee ]

After commit b38ff4075a80, the following command does not work anymore:
$ ip xfrm state add src 10.125.0.2 dst 10.125.0.1 proto esp spi 34 reqid 1 \
  mode tunnel enc 'cbc(aes)' 0xb0abdba8b782ad9d364ec81e3a7d82a1 auth-trunc \
  'hmac(sha1)' 0xe26609ebd00acb6a4d51fca13e49ea78a72c73e6 96 flag align4

In fact, the selector is not mandatory, allow the user to provide an empty
selector.

Fixes: b38ff4075a80 ("xfrm: Fix xfrm sel prefix length validation")
CC: Anirudh Gupta <anirudh.gupta@sophos.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_user.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index b25b68ae7c74..150c58dc8a7b 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -166,6 +166,9 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 	}
 
 	switch (p->sel.family) {
+	case AF_UNSPEC:
+		break;
+
 	case AF_INET:
 		if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32)
 			goto out;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 053/293] sched/core: Add __sched tag for io_schedule()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (51 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 052/293] xfrm: fix sa selector validation Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 054/293] sched/fair: Fix "runnable_avg_yN_inv" not used warnings Greg Kroah-Hartman
                   ` (245 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jilong Kou, Gao Xiang,
	Peter Zijlstra (Intel),
	Tejun Heo, Andrew Morton, Linus Torvalds, Miao Xie,
	Thomas Gleixner, Ingo Molnar, Sasha Levin

[ Upstream commit e3b929b0a184edb35531153c5afcaebb09014f9d ]

Non-inline io_schedule() was introduced in:

  commit 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and io_schedule_finish()")

Keep in line with io_schedule_timeout(), otherwise "/proc/<pid>/wchan" will
report io_schedule() rather than its callers when waiting for IO.

Reported-by: Jilong Kou <koujilong@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Miao Xie <miaoxie@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and io_schedule_finish()")
Link: https://lkml.kernel.org/r/20190603091338.2695-1-gaoxiang25@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b3ff73d6a4c2..ff128e281d1c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5026,7 +5026,7 @@ long __sched io_schedule_timeout(long timeout)
 }
 EXPORT_SYMBOL(io_schedule_timeout);
 
-void io_schedule(void)
+void __sched io_schedule(void)
 {
 	int token;
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 054/293] sched/fair: Fix "runnable_avg_yN_inv" not used warnings
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (52 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 053/293] sched/core: Add __sched tag for io_schedule() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-30 18:28   ` Nathan Chancellor
  2019-07-29 19:19 ` [PATCH 4.14 055/293] x86/atomic: Fix smp_mb__{before,after}_atomic() Greg Kroah-Hartman
                   ` (244 subsequent siblings)
  298 siblings, 1 reply; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Qian Cai, Peter Zijlstra (Intel),
	Linus Torvalds, Thomas Gleixner, Ingo Molnar, Sasha Levin

[ Upstream commit 509466b7d480bc5d22e90b9fbe6122ae0e2fbe39 ]

runnable_avg_yN_inv[] is only used in kernel/sched/pelt.c but was
included in several other places because they need other macros all
came from kernel/sched/sched-pelt.h which was generated by
Documentation/scheduler/sched-pelt. As the result, it causes compilation
a lot of warnings,

  kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
  kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
  kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
  ...

Silence it by appending the __maybe_unused attribute for it, so all
generated variables and macros can still be kept in the same file.

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1559596304-31581-1-git-send-email-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/scheduler/sched-pelt.c | 3 ++-
 kernel/sched/sched-pelt.h            | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/scheduler/sched-pelt.c b/Documentation/scheduler/sched-pelt.c
index e4219139386a..7238b355919c 100644
--- a/Documentation/scheduler/sched-pelt.c
+++ b/Documentation/scheduler/sched-pelt.c
@@ -20,7 +20,8 @@ void calc_runnable_avg_yN_inv(void)
 	int i;
 	unsigned int x;
 
-	printf("static const u32 runnable_avg_yN_inv[] = {");
+	/* To silence -Wunused-but-set-variable warnings. */
+	printf("static const u32 runnable_avg_yN_inv[] __maybe_unused = {");
 	for (i = 0; i < HALFLIFE; i++) {
 		x = ((1UL<<32)-1)*pow(y, i);
 
diff --git a/kernel/sched/sched-pelt.h b/kernel/sched/sched-pelt.h
index a26473674fb7..c529706bed11 100644
--- a/kernel/sched/sched-pelt.h
+++ b/kernel/sched/sched-pelt.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /* Generated by Documentation/scheduler/sched-pelt; do not modify. */
 
-static const u32 runnable_avg_yN_inv[] = {
+static const u32 runnable_avg_yN_inv[] __maybe_unused = {
 	0xffffffff, 0xfa83b2da, 0xf5257d14, 0xefe4b99a, 0xeac0c6e6, 0xe5b906e6,
 	0xe0ccdeeb, 0xdbfbb796, 0xd744fcc9, 0xd2a81d91, 0xce248c14, 0xc9b9bd85,
 	0xc5672a10, 0xc12c4cc9, 0xbd08a39e, 0xb8fbaf46, 0xb504f333, 0xb123f581,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 055/293] x86/atomic: Fix smp_mb__{before,after}_atomic()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (53 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 054/293] sched/fair: Fix "runnable_avg_yN_inv" not used warnings Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 056/293] perf evsel: Make perf_evsel__name() accept a NULL argument Greg Kroah-Hartman
                   ` (243 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Peter Zijlstra (Intel),
	Linus Torvalds, Thomas Gleixner, Ingo Molnar, Sasha Levin

[ Upstream commit 69d927bba39517d0980462efc051875b7f4db185 ]

Recent probing at the Linux Kernel Memory Model uncovered a
'surprise'. Strongly ordered architectures where the atomic RmW
primitive implies full memory ordering and
smp_mb__{before,after}_atomic() are a simple barrier() (such as x86)
fail for:

	*x = 1;
	atomic_inc(u);
	smp_mb__after_atomic();
	r0 = *y;

Because, while the atomic_inc() implies memory order, it
(surprisingly) does not provide a compiler barrier. This then allows
the compiler to re-order like so:

	atomic_inc(u);
	*x = 1;
	smp_mb__after_atomic();
	r0 = *y;

Which the CPU is then allowed to re-order (under TSO rules) like:

	atomic_inc(u);
	r0 = *y;
	*x = 1;

And this very much was not intended. Therefore strengthen the atomic
RmW ops to include a compiler barrier.

NOTE: atomic_{or,and,xor} and the bitops already had the compiler
barrier.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/atomic_t.txt         | 3 +++
 arch/x86/include/asm/atomic.h      | 8 ++++----
 arch/x86/include/asm/atomic64_64.h | 8 ++++----
 arch/x86/include/asm/barrier.h     | 4 ++--
 4 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/Documentation/atomic_t.txt b/Documentation/atomic_t.txt
index 913396ac5824..ed0d814df7e0 100644
--- a/Documentation/atomic_t.txt
+++ b/Documentation/atomic_t.txt
@@ -177,6 +177,9 @@ These helper barriers exist because architectures have varying implicit
 ordering on their SMP atomic primitives. For example our TSO architectures
 provide full ordered atomics and these barriers are no-ops.
 
+NOTE: when the atomic RmW ops are fully ordered, they should also imply a
+compiler barrier.
+
 Thus:
 
   atomic_fetch_add();
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 72759f131cc5..d09dd91dd0b6 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -50,7 +50,7 @@ static __always_inline void atomic_add(int i, atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "addl %1,%0"
 		     : "+m" (v->counter)
-		     : "ir" (i));
+		     : "ir" (i) : "memory");
 }
 
 /**
@@ -64,7 +64,7 @@ static __always_inline void atomic_sub(int i, atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "subl %1,%0"
 		     : "+m" (v->counter)
-		     : "ir" (i));
+		     : "ir" (i) : "memory");
 }
 
 /**
@@ -90,7 +90,7 @@ static __always_inline bool atomic_sub_and_test(int i, atomic_t *v)
 static __always_inline void atomic_inc(atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "incl %0"
-		     : "+m" (v->counter));
+		     : "+m" (v->counter) :: "memory");
 }
 
 /**
@@ -102,7 +102,7 @@ static __always_inline void atomic_inc(atomic_t *v)
 static __always_inline void atomic_dec(atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "decl %0"
-		     : "+m" (v->counter));
+		     : "+m" (v->counter) :: "memory");
 }
 
 /**
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 738495caf05f..e6fad6bbb2ee 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -45,7 +45,7 @@ static __always_inline void atomic64_add(long i, atomic64_t *v)
 {
 	asm volatile(LOCK_PREFIX "addq %1,%0"
 		     : "=m" (v->counter)
-		     : "er" (i), "m" (v->counter));
+		     : "er" (i), "m" (v->counter) : "memory");
 }
 
 /**
@@ -59,7 +59,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
 {
 	asm volatile(LOCK_PREFIX "subq %1,%0"
 		     : "=m" (v->counter)
-		     : "er" (i), "m" (v->counter));
+		     : "er" (i), "m" (v->counter) : "memory");
 }
 
 /**
@@ -86,7 +86,7 @@ static __always_inline void atomic64_inc(atomic64_t *v)
 {
 	asm volatile(LOCK_PREFIX "incq %0"
 		     : "=m" (v->counter)
-		     : "m" (v->counter));
+		     : "m" (v->counter) : "memory");
 }
 
 /**
@@ -99,7 +99,7 @@ static __always_inline void atomic64_dec(atomic64_t *v)
 {
 	asm volatile(LOCK_PREFIX "decq %0"
 		     : "=m" (v->counter)
-		     : "m" (v->counter));
+		     : "m" (v->counter) : "memory");
 }
 
 /**
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index a04f0c242a28..bc88797cfa61 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -106,8 +106,8 @@ do {									\
 #endif
 
 /* Atomic operations are already serializing on x86 */
-#define __smp_mb__before_atomic()	barrier()
-#define __smp_mb__after_atomic()	barrier()
+#define __smp_mb__before_atomic()	do { } while (0)
+#define __smp_mb__after_atomic()	do { } while (0)
 
 #include <asm-generic/barrier.h>
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 056/293] perf evsel: Make perf_evsel__name() accept a NULL argument
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (54 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 055/293] x86/atomic: Fix smp_mb__{before,after}_atomic() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 057/293] vhost_net: disable zerocopy by default Greg Kroah-Hartman
                   ` (242 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Leo Yan, Adrian Hunter, Jiri Olsa,
	Namhyung Kim, Arnaldo Carvalho de Melo, Sasha Levin

[ Upstream commit fdbdd7e8580eac9bdafa532746c865644d125e34 ]

In which case it simply returns "unknown", like when it can't figure out
the evsel->name value.

This makes this code more robust and fixes a problem in 'perf trace'
where a NULL evsel was being passed to a routine that only used the
evsel for printing its name when a invalid syscall id was passed.

Reported-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-f30ztaasku3z935cn3ak3h53@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/evsel.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0cf6f537f980..3ab81e8e079e 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -587,6 +587,9 @@ const char *perf_evsel__name(struct perf_evsel *evsel)
 {
 	char bf[128];
 
+	if (!evsel)
+		goto out_unknown;
+
 	if (evsel->name)
 		return evsel->name;
 
@@ -623,7 +626,10 @@ const char *perf_evsel__name(struct perf_evsel *evsel)
 
 	evsel->name = strdup(bf);
 
-	return evsel->name ?: "unknown";
+	if (evsel->name)
+		return evsel->name;
+out_unknown:
+	return "unknown";
 }
 
 const char *perf_evsel__group_name(struct perf_evsel *evsel)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 057/293] vhost_net: disable zerocopy by default
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (55 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 056/293] perf evsel: Make perf_evsel__name() accept a NULL argument Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 058/293] ipoib: correcly show a VF hardware address Greg Kroah-Hartman
                   ` (241 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jason Wang, Michael S. Tsirkin,
	David S. Miller, Sasha Levin

[ Upstream commit 098eadce3c622c07b328d0a43dda379b38cf7c5e ]

Vhost_net was known to suffer from HOL[1] issues which is not easy to
fix. Several downstream disable the feature by default. What's more,
the datapath was split and datacopy path got the support of batching
and XDP support recently which makes it faster than zerocopy part for
small packets transmission.

It looks to me that disable zerocopy by default is more
appropriate. It cold be enabled by default again in the future if we
fix the above issues.

[1] https://patchwork.kernel.org/patch/3787671/

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vhost/net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index b40e8ded49c6..4d11152e60c1 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -35,7 +35,7 @@
 
 #include "vhost.h"
 
-static int experimental_zcopytx = 1;
+static int experimental_zcopytx = 0;
 module_param(experimental_zcopytx, int, 0444);
 MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
 		                       " 1 -Enable; 0 - Disable");
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 058/293] ipoib: correcly show a VF hardware address
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (56 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 057/293] vhost_net: disable zerocopy by default Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 059/293] EDAC/sysfs: Fix memory leak when creating a csrow object Greg Kroah-Hartman
                   ` (240 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Denis Kirjanov, Doug Ledford,
	David S. Miller, Sasha Levin

[ Upstream commit 64d701c608fea362881e823b666327f5d28d7ffd ]

in the case of IPoIB with SRIOV enabled hardware
ip link show command incorrecly prints
0 instead of a VF hardware address.

Before:
11: ib1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast
state UP mode DEFAULT group default qlen 256
    link/infiniband
80:00:00:66:fe:80:00:00:00:00:00:00:24:8a:07:03:00:a4:3e:7c brd
00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    vf 0 MAC 00:00:00:00:00:00, spoof checking off, link-state disable,
trust off, query_rss off
...
After:
11: ib1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast
state UP mode DEFAULT group default qlen 256
    link/infiniband
80:00:00:66:fe:80:00:00:00:00:00:00:24:8a:07:03:00:a4:3e:7c brd
00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    vf 0     link/infiniband
80:00:00:66:fe:80:00:00:00:00:00:00:24:8a:07:03:00:a4:3e:7c brd
00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff, spoof
checking off, link-state disable, trust off, query_rss off

v1->v2: just copy an address without modifing ifla_vf_mac
v2->v3: update the changelog

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Acked-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/ipoib/ipoib_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index e6ff16b27acd..1a93d3d58c8a 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1833,6 +1833,7 @@ static int ipoib_get_vf_config(struct net_device *dev, int vf,
 		return err;
 
 	ivf->vf = vf;
+	memcpy(ivf->mac, dev->dev_addr, dev->addr_len);
 
 	return 0;
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 059/293] EDAC/sysfs: Fix memory leak when creating a csrow object
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (57 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 058/293] ipoib: correcly show a VF hardware address Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 060/293] ipsec: select crypto ciphers for xfrm_algo Greg Kroah-Hartman
                   ` (239 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Pan Bian, Borislav Petkov,
	James Morse, Mauro Carvalho Chehab, linux-edac, Sasha Levin

[ Upstream commit 585fb3d93d32dbe89e718b85009f9c322cc554cd ]

In edac_create_csrow_object(), the reference to the object is not
released when adding the device to the device hierarchy fails
(device_add()). This may result in a memory leak.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/1555554438-103953-1-git-send-email-bianpan2016@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/edac/edac_mc_sysfs.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 79c13301bf41..148c4649b155 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -426,6 +426,8 @@ static inline int nr_pages_per_csrow(struct csrow_info *csrow)
 static int edac_create_csrow_object(struct mem_ctl_info *mci,
 				    struct csrow_info *csrow, int index)
 {
+	int err;
+
 	csrow->dev.type = &csrow_attr_type;
 	csrow->dev.bus = mci->bus;
 	csrow->dev.groups = csrow_dev_groups;
@@ -438,7 +440,11 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci,
 	edac_dbg(0, "creating (virtual) csrow node %s\n",
 		 dev_name(&csrow->dev));
 
-	return device_add(&csrow->dev);
+	err = device_add(&csrow->dev);
+	if (err)
+		put_device(&csrow->dev);
+
+	return err;
 }
 
 /* Create a CSROW object under specifed edac_mc_device */
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 060/293] ipsec: select crypto ciphers for xfrm_algo
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (58 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 059/293] EDAC/sysfs: Fix memory leak when creating a csrow object Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 061/293] ipvs: defer hook registration to avoid leaks Greg Kroah-Hartman
                   ` (238 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Herbert Xu,
	Steffen Klassert, Sasha Levin

[ Upstream commit 597179b0ba550bd83fab1a9d57c42a9343c58514 ]

kernelci.org reports failed builds on arc because of what looks
like an old missed 'select' statement:

net/xfrm/xfrm_algo.o: In function `xfrm_probe_algs':
xfrm_algo.c:(.text+0x1e8): undefined reference to `crypto_has_ahash'

I don't see this in randconfig builds on other architectures, but
it's fairly clear we want to select the hash code for it, like we
do for all its other users. As Herbert points out, CRYPTO_BLKCIPHER
is also required even though it has not popped up in build tests.

Fixes: 17bc19702221 ("ipsec: Use skcipher and ahash when probing algorithms")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 286ed25c1a69..2e747ae7dc89 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -14,6 +14,8 @@ config XFRM_ALGO
 	tristate
 	select XFRM
 	select CRYPTO
+	select CRYPTO_HASH
+	select CRYPTO_BLKCIPHER
 
 config XFRM_USER
 	tristate "Transformation user configuration interface"
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 061/293] ipvs: defer hook registration to avoid leaks
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (59 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 060/293] ipsec: select crypto ciphers for xfrm_algo Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 062/293] media: s5p-mfc: Make additional clocks optional Greg Kroah-Hartman
                   ` (237 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+722da59ccb264bc19910,
	Julian Anastasov, Simon Horman, Pablo Neira Ayuso, Sasha Levin

[ Upstream commit cf47a0b882a4e5f6b34c7949d7b293e9287f1972 ]

syzkaller reports for memory leak when registering hooks [1]

As we moved the nf_unregister_net_hooks() call into
__ip_vs_dev_cleanup(), defer the nf_register_net_hooks()
call, so that hooks are allocated and freed from same
pernet_operations (ipvs_core_dev_ops).

[1]
BUG: memory leak
unreferenced object 0xffff88810acd8a80 (size 96):
 comm "syz-executor073", pid 7254, jiffies 4294950560 (age 22.250s)
 hex dump (first 32 bytes):
   02 00 00 00 00 00 00 00 50 8b bb 82 ff ff ff ff  ........P.......
   00 00 00 00 00 00 00 00 00 77 bb 82 ff ff ff ff  .........w......
 backtrace:
   [<0000000013db61f1>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline]
   [<0000000013db61f1>] slab_post_alloc_hook mm/slab.h:439 [inline]
   [<0000000013db61f1>] slab_alloc_node mm/slab.c:3269 [inline]
   [<0000000013db61f1>] kmem_cache_alloc_node_trace+0x15b/0x2a0 mm/slab.c:3597
   [<000000001a27307d>] __do_kmalloc_node mm/slab.c:3619 [inline]
   [<000000001a27307d>] __kmalloc_node+0x38/0x50 mm/slab.c:3627
   [<0000000025054add>] kmalloc_node include/linux/slab.h:590 [inline]
   [<0000000025054add>] kvmalloc_node+0x4a/0xd0 mm/util.c:431
   [<0000000050d1bc00>] kvmalloc include/linux/mm.h:637 [inline]
   [<0000000050d1bc00>] kvzalloc include/linux/mm.h:645 [inline]
   [<0000000050d1bc00>] allocate_hook_entries_size+0x3b/0x60 net/netfilter/core.c:61
   [<00000000e8abe142>] nf_hook_entries_grow+0xae/0x270 net/netfilter/core.c:128
   [<000000004b94797c>] __nf_register_net_hook+0x9a/0x170 net/netfilter/core.c:337
   [<00000000d1545cbc>] nf_register_net_hook+0x34/0xc0 net/netfilter/core.c:464
   [<00000000876c9b55>] nf_register_net_hooks+0x53/0xc0 net/netfilter/core.c:480
   [<000000002ea868e0>] __ip_vs_init+0xe8/0x170 net/netfilter/ipvs/ip_vs_core.c:2280
   [<000000002eb2d451>] ops_init+0x4c/0x140 net/core/net_namespace.c:130
   [<000000000284ec48>] setup_net+0xde/0x230 net/core/net_namespace.c:316
   [<00000000a70600fa>] copy_net_ns+0xf0/0x1e0 net/core/net_namespace.c:439
   [<00000000ff26c15e>] create_new_namespaces+0x141/0x2a0 kernel/nsproxy.c:107
   [<00000000b103dc79>] copy_namespaces+0xa1/0xe0 kernel/nsproxy.c:165
   [<000000007cc008a2>] copy_process.part.0+0x11fd/0x2150 kernel/fork.c:2035
   [<00000000c344af7c>] copy_process kernel/fork.c:1800 [inline]
   [<00000000c344af7c>] _do_fork+0x121/0x4f0 kernel/fork.c:2369

Reported-by: syzbot+722da59ccb264bc19910@syzkaller.appspotmail.com
Fixes: 719c7d563c17 ("ipvs: Fix use-after-free in ip_vs_in")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/ipvs/ip_vs_core.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index ee97ce176b9a..2156571455db 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -2206,7 +2206,6 @@ static const struct nf_hook_ops ip_vs_ops[] = {
 static int __net_init __ip_vs_init(struct net *net)
 {
 	struct netns_ipvs *ipvs;
-	int ret;
 
 	ipvs = net_generic(net, ip_vs_net_id);
 	if (ipvs == NULL)
@@ -2238,17 +2237,11 @@ static int __net_init __ip_vs_init(struct net *net)
 	if (ip_vs_sync_net_init(ipvs) < 0)
 		goto sync_fail;
 
-	ret = nf_register_net_hooks(net, ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
-	if (ret < 0)
-		goto hook_fail;
-
 	return 0;
 /*
  * Error handling
  */
 
-hook_fail:
-	ip_vs_sync_net_cleanup(ipvs);
 sync_fail:
 	ip_vs_conn_net_cleanup(ipvs);
 conn_fail:
@@ -2278,6 +2271,19 @@ static void __net_exit __ip_vs_cleanup(struct net *net)
 	net->ipvs = NULL;
 }
 
+static int __net_init __ip_vs_dev_init(struct net *net)
+{
+	int ret;
+
+	ret = nf_register_net_hooks(net, ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
+	if (ret < 0)
+		goto hook_fail;
+	return 0;
+
+hook_fail:
+	return ret;
+}
+
 static void __net_exit __ip_vs_dev_cleanup(struct net *net)
 {
 	struct netns_ipvs *ipvs = net_ipvs(net);
@@ -2297,6 +2303,7 @@ static struct pernet_operations ipvs_core_ops = {
 };
 
 static struct pernet_operations ipvs_core_dev_ops = {
+	.init = __ip_vs_dev_init,
 	.exit = __ip_vs_dev_cleanup,
 };
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 062/293] media: s5p-mfc: Make additional clocks optional
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (60 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 061/293] ipvs: defer hook registration to avoid leaks Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 063/293] media: i2c: fix warning same module names Greg Kroah-Hartman
                   ` (236 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Marek Szyprowski, Hans Verkuil,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit e08efef8fe7db87206314c19b341612c719f891a ]

Since the beginning the second clock ('special', 'sclk') was optional and
it is not available on some variants of Exynos SoCs (i.e. Exynos5420 with
v7 of MFC hardware).

However commit 1bce6fb3edf1 ("[media] s5p-mfc: Rework clock handling")
made handling of all specified clocks mandatory. This patch restores
original behavior of the driver and fixes its operation on
Exynos5420 SoCs.

Fixes: 1bce6fb3edf1 ("[media] s5p-mfc: Rework clock handling")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/s5p-mfc/s5p_mfc_pm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c b/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
index eb85cedc5ef3..5e080f32b0e8 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
@@ -38,6 +38,11 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
 	for (i = 0; i < pm->num_clocks; i++) {
 		pm->clocks[i] = devm_clk_get(pm->device, pm->clk_names[i]);
 		if (IS_ERR(pm->clocks[i])) {
+			/* additional clocks are optional */
+			if (i && PTR_ERR(pm->clocks[i]) == -ENOENT) {
+				pm->clocks[i] = NULL;
+				continue;
+			}
 			mfc_err("Failed to get clock: %s\n",
 				pm->clk_names[i]);
 			return PTR_ERR(pm->clocks[i]);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 063/293] media: i2c: fix warning same module names
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (61 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 062/293] media: s5p-mfc: Make additional clocks optional Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 064/293] ntp: Limit TAI-UTC offset Greg Kroah-Hartman
                   ` (235 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Anders Roxell, Hans Verkuil,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit b2ce5617dad254230551feda3599f2cc68e53ad8 ]

When building with CONFIG_VIDEO_ADV7511 and CONFIG_DRM_I2C_ADV7511
enabled as loadable modules, we see the following warning:

  drivers/gpu/drm/bridge/adv7511/adv7511.ko
  drivers/media/i2c/adv7511.ko

Rework so that the file is named adv7511-v4l2.c.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/Makefile                      | 2 +-
 drivers/media/i2c/{adv7511.c => adv7511-v4l2.c} | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)
 rename drivers/media/i2c/{adv7511.c => adv7511-v4l2.c} (99%)

diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index f104650d6000..0f5c5a3cdca3 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -33,7 +33,7 @@ obj-$(CONFIG_VIDEO_ADV748X) += adv748x/
 obj-$(CONFIG_VIDEO_ADV7604) += adv7604.o
 obj-$(CONFIG_VIDEO_ADV7842) += adv7842.o
 obj-$(CONFIG_VIDEO_AD9389B) += ad9389b.o
-obj-$(CONFIG_VIDEO_ADV7511) += adv7511.o
+obj-$(CONFIG_VIDEO_ADV7511) += adv7511-v4l2.o
 obj-$(CONFIG_VIDEO_VPX3220) += vpx3220.o
 obj-$(CONFIG_VIDEO_VS6624)  += vs6624.o
 obj-$(CONFIG_VIDEO_BT819) += bt819.o
diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511-v4l2.c
similarity index 99%
rename from drivers/media/i2c/adv7511.c
rename to drivers/media/i2c/adv7511-v4l2.c
index 80c20404334a..ef1144668809 100644
--- a/drivers/media/i2c/adv7511.c
+++ b/drivers/media/i2c/adv7511-v4l2.c
@@ -17,6 +17,11 @@
  * SOFTWARE.
  */
 
+/*
+ * This file is named adv7511-v4l2.c so it doesn't conflict with the Analog
+ * Device ADV7511 (config fragment CONFIG_DRM_I2C_ADV7511).
+ */
+
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 064/293] ntp: Limit TAI-UTC offset
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (62 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 063/293] media: i2c: fix warning same module names Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 065/293] timer_list: Guard procfs specific code Greg Kroah-Hartman
                   ` (234 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Weikang shi, Miroslav Lichvar,
	Thomas Gleixner, John Stultz, Prarit Bhargava, Richard Cochran,
	Stephen Boyd, Sasha Levin

[ Upstream commit d897a4ab11dc8a9fda50d2eccc081a96a6385998 ]

Don't allow the TAI-UTC offset of the system clock to be set by adjtimex()
to a value larger than 100000 seconds.

This prevents an overflow in the conversion to int, prevents the CLOCK_TAI
clock from getting too far ahead of the CLOCK_REALTIME clock, and it is
still large enough to allow leap seconds to be inserted at the maximum rate
currently supported by the kernel (once per day) for the next ~270 years,
however unlikely it is that someone can survive a catastrophic event which
slowed down the rotation of the Earth so much.

Reported-by: Weikang shi <swkhack@gmail.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190618154713.20929-1-mlichvar@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/time/ntp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 4bb9b66338be..9288532f73c8 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -43,6 +43,7 @@ static u64			tick_length_base;
 #define MAX_TICKADJ		500LL		/* usecs */
 #define MAX_TICKADJ_SCALED \
 	(((MAX_TICKADJ * NSEC_PER_USEC) << NTP_SCALE_SHIFT) / NTP_INTERVAL_FREQ)
+#define MAX_TAI_OFFSET		100000
 
 /*
  * phase-lock loop variables
@@ -640,7 +641,8 @@ static inline void process_adjtimex_modes(struct timex *txc,
 		time_constant = max(time_constant, 0l);
 	}
 
-	if (txc->modes & ADJ_TAI && txc->constant >= 0)
+	if (txc->modes & ADJ_TAI &&
+			txc->constant >= 0 && txc->constant <= MAX_TAI_OFFSET)
 		*time_tai = txc->constant;
 
 	if (txc->modes & ADJ_OFFSET)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 065/293] timer_list: Guard procfs specific code
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (63 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 064/293] ntp: Limit TAI-UTC offset Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 066/293] acpi/arm64: ignore 5.1 FADTs that are reported as 5.0 Greg Kroah-Hartman
                   ` (233 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Nathan Huckleberry, Thomas Gleixner,
	Nick Desaulniers, john.stultz, sboyd, clang-built-linux,
	Sasha Levin

[ Upstream commit a9314773a91a1d3b36270085246a6715a326ff00 ]

With CONFIG_PROC_FS=n the following warning is emitted:

kernel/time/timer_list.c:361:36: warning: unused variable
'timer_list_sops' [-Wunused-const-variable]
   static const struct seq_operations timer_list_sops = {

Add #ifdef guard around procfs specific code.

Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: john.stultz@linaro.org
Cc: sboyd@kernel.org
Cc: clang-built-linux@googlegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/534
Link: https://lkml.kernel.org/r/20190614181604.112297-1-nhuck@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/time/timer_list.c | 36 +++++++++++++++++++-----------------
 1 file changed, 19 insertions(+), 17 deletions(-)

diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 0ed768b56c60..7e9f149d34ea 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -289,23 +289,6 @@ static inline void timer_list_header(struct seq_file *m, u64 now)
 	SEQ_printf(m, "\n");
 }
 
-static int timer_list_show(struct seq_file *m, void *v)
-{
-	struct timer_list_iter *iter = v;
-
-	if (iter->cpu == -1 && !iter->second_pass)
-		timer_list_header(m, iter->now);
-	else if (!iter->second_pass)
-		print_cpu(m, iter->cpu, iter->now);
-#ifdef CONFIG_GENERIC_CLOCKEVENTS
-	else if (iter->cpu == -1 && iter->second_pass)
-		timer_list_show_tickdevices_header(m);
-	else
-		print_tickdevice(m, tick_get_device(iter->cpu), iter->cpu);
-#endif
-	return 0;
-}
-
 void sysrq_timer_list_show(void)
 {
 	u64 now = ktime_to_ns(ktime_get());
@@ -324,6 +307,24 @@ void sysrq_timer_list_show(void)
 	return;
 }
 
+#ifdef CONFIG_PROC_FS
+static int timer_list_show(struct seq_file *m, void *v)
+{
+	struct timer_list_iter *iter = v;
+
+	if (iter->cpu == -1 && !iter->second_pass)
+		timer_list_header(m, iter->now);
+	else if (!iter->second_pass)
+		print_cpu(m, iter->cpu, iter->now);
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
+	else if (iter->cpu == -1 && iter->second_pass)
+		timer_list_show_tickdevices_header(m);
+	else
+		print_tickdevice(m, tick_get_device(iter->cpu), iter->cpu);
+#endif
+	return 0;
+}
+
 static void *move_iter(struct timer_list_iter *iter, loff_t offset)
 {
 	for (; offset; offset--) {
@@ -395,3 +396,4 @@ static int __init init_timer_list_procfs(void)
 	return 0;
 }
 __initcall(init_timer_list_procfs);
+#endif
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 066/293] acpi/arm64: ignore 5.1 FADTs that are reported as 5.0
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (64 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 065/293] timer_list: Guard procfs specific code Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 067/293] media: coda: fix mpeg2 sequence number handling Greg Kroah-Hartman
                   ` (232 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Sudeep Holla, Lee Jones,
	Graeme Gregory, Lorenzo Pieralisi, Hanjun Guo, Ard Biesheuvel,
	Catalin Marinas, Sasha Levin

[ Upstream commit 2af22f3ec3ca452f1e79b967f634708ff01ced8a ]

Some Qualcomm Snapdragon based laptops built to run Microsoft Windows
are clearly ACPI 5.1 based, given that that is the first ACPI revision
that supports ARM, and introduced the FADT 'arm_boot_flags' field,
which has a non-zero field on those systems.

So in these cases, infer from the ARM boot flags that the FADT must be
5.1 or later, and treat it as 5.1.

Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kernel/acpi.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index b3162715ed78..285f0b4851fc 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -157,10 +157,14 @@ static int __init acpi_fadt_sanity_check(void)
 	 */
 	if (table->revision < 5 ||
 	   (table->revision == 5 && fadt->minor_revision < 1)) {
-		pr_err("Unsupported FADT revision %d.%d, should be 5.1+\n",
+		pr_err(FW_BUG "Unsupported FADT revision %d.%d, should be 5.1+\n",
 		       table->revision, fadt->minor_revision);
-		ret = -EINVAL;
-		goto out;
+
+		if (!fadt->arm_boot_flags) {
+			ret = -EINVAL;
+			goto out;
+		}
+		pr_err("FADT has ARM boot flags set, assuming 5.1\n");
 	}
 
 	if (!(fadt->flags & ACPI_FADT_HW_REDUCED)) {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 067/293] media: coda: fix mpeg2 sequence number handling
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (65 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 066/293] acpi/arm64: ignore 5.1 FADTs that are reported as 5.0 Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 068/293] media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP Greg Kroah-Hartman
                   ` (231 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Philipp Zabel, Hans Verkuil,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 56d159a4ec6d8da7313aac6fcbb95d8fffe689ba ]

Sequence number handling assumed that the BIT processor frame number
starts counting at 1, but this is not true for the MPEG-2 decoder,
which starts at 0. Fix the sequence counter offset detection to handle
this.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/coda/coda-bit.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 6eee55430d46..43eb5d51cf23 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1679,6 +1679,7 @@ static int __coda_start_decoding(struct coda_ctx *ctx)
 		v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
 		return ret;
 	}
+	ctx->sequence_offset = ~0U;
 	ctx->initialized = 1;
 
 	/* Update kfifo out pointer from coda bitstream read pointer */
@@ -2095,7 +2096,9 @@ static void coda_finish_decode(struct coda_ctx *ctx)
 		v4l2_err(&dev->v4l2_dev,
 			 "decoded frame index out of range: %d\n", decoded_idx);
 	} else {
-		val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM) - 1;
+		val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM);
+		if (ctx->sequence_offset == -1)
+			ctx->sequence_offset = val;
 		val -= ctx->sequence_offset;
 		spin_lock_irqsave(&ctx->buffer_meta_lock, flags);
 		if (!list_empty(&ctx->buffer_meta_list)) {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 068/293] media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (66 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 067/293] media: coda: fix mpeg2 sequence number handling Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 069/293] media: coda: increment sequence offset for the last returned frame Greg Kroah-Hartman
                   ` (230 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Marco Felsch, Lucas Stach,
	Philipp Zabel, Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit f3775f89852d167990b0d718587774cf00d22ac2 ]

coda_encoder_cmd() is racy, as the last scheduled picture run worker can
still be in-flight while the ENC_CMD_STOP command is issued. Depending
on the exact timing the sequence numbers might already be changed, but
the last buffer might not have been put on the destination queue yet.

In this case the current implementation would prematurely wake the
destination queue with last_buffer_dequeued=true, causing userspace to
call streamoff before the last buffer is handled.

Close this race window by synchronizing with the pic_run_worker before
doing the sequence check.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
[l.stach@pengutronix.de: switch to flush_work, reword commit message]
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/coda/coda-common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 2e1472fadc2c..5b87c488ee11 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -932,6 +932,8 @@ static int coda_encoder_cmd(struct file *file, void *fh,
 	/* Set the stream-end flag on this context */
 	ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
 
+	flush_work(&ctx->pic_run_work);
+
 	/* If there is no buffer in flight, wake up */
 	if (!ctx->streamon_out || ctx->qsequence == ctx->osequence) {
 		dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 069/293] media: coda: increment sequence offset for the last returned frame
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (67 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 068/293] media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 070/293] media: vimc: cap: check v4l2_fill_pixfmt return value Greg Kroah-Hartman
                   ` (229 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Philipp Zabel, Hans Verkuil,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit b3b7d96817cdb8b6fc353867705275dce8f41ccc ]

If no more frames are decoded in bitstream end mode, and a previously
decoded frame has been returned, the firmware still increments the frame
number. To avoid a sequence number mismatch after decoder restart,
increment the sequence_offset correction parameter.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/coda/coda-bit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 43eb5d51cf23..f0f2175265a9 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -2091,6 +2091,9 @@ static void coda_finish_decode(struct coda_ctx *ctx)
 		else if (ctx->display_idx < 0)
 			ctx->hold = true;
 	} else if (decoded_idx == -2) {
+		if (ctx->display_idx >= 0 &&
+		    ctx->display_idx < ctx->num_internal_frames)
+			ctx->sequence_offset++;
 		/* no frame was decoded, we still return remaining buffers */
 	} else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
 		v4l2_err(&dev->v4l2_dev,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 070/293] media: vimc: cap: check v4l2_fill_pixfmt return value
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (68 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 069/293] media: coda: increment sequence offset for the last returned frame Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 071/293] media: hdpvr: fix locking and a missing msleep Greg Kroah-Hartman
                   ` (228 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, André Almeida, Helen Koike,
	Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 77ae46e11df5c96bb4582633851f838f5d954df4 ]

v4l2_fill_pixfmt() returns -EINVAL if the pixelformat used as parameter is
invalid or if the user is trying to use a multiplanar format with the
singleplanar API. Currently, the vimc_cap_try_fmt_vid_cap() returns such
value, but vimc_cap_s_fmt_vid_cap() is ignoring it. Fix that and returns
an error value if vimc_cap_try_fmt_vid_cap() has failed.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Suggested-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/vimc/vimc-capture.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index a078ad18909a..091921ed09dd 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -131,12 +131,15 @@ static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv,
 				  struct v4l2_format *f)
 {
 	struct vimc_cap_device *vcap = video_drvdata(file);
+	int ret;
 
 	/* Do not change the format while stream is on */
 	if (vb2_is_busy(&vcap->queue))
 		return -EBUSY;
 
-	vimc_cap_try_fmt_vid_cap(file, priv, f);
+	ret = vimc_cap_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
 
 	dev_dbg(vcap->dev, "%s: format update: "
 		"old:%dx%d (0x%x, %d, %d, %d, %d) "
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 071/293] media: hdpvr: fix locking and a missing msleep
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (69 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 070/293] media: vimc: cap: check v4l2_fill_pixfmt return value Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 072/293] rtlwifi: rtl8192cu: fix error handle when usb probe failed Greg Kroah-Hartman
                   ` (227 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Keith Pyle, Hans Verkuil,
	Mauro Carvalho Chehab, Sasha Levin

[ Upstream commit 6bc5a4a1927556ff9adce1aa95ea408c95453225 ]

This driver has three locking issues:

- The wait_event_interruptible() condition calls hdpvr_get_next_buffer(dev)
  which uses a mutex, which is not allowed. Rewrite with list_empty_careful()
  that doesn't need locking.

- In hdpvr_read() the call to hdpvr_stop_streaming() didn't lock io_mutex,
  but it should have since stop_streaming expects that.

- In hdpvr_device_release() io_mutex was locked when calling flush_work(),
  but there it shouldn't take that mutex since the work done by flush_work()
  also wants to lock that mutex.

There are also two other changes (suggested by Keith):

- msecs_to_jiffies(4000); (a NOP) should have been msleep(4000).
- Change v4l2_dbg to v4l2_info to always log if streaming had to be restarted.

Reported-by: Keith Pyle <kpyle@austin.rr.com>
Suggested-by: Keith Pyle <kpyle@austin.rr.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/hdpvr/hdpvr-video.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c
index 7fb036d6a86e..991f820a4530 100644
--- a/drivers/media/usb/hdpvr/hdpvr-video.c
+++ b/drivers/media/usb/hdpvr/hdpvr-video.c
@@ -439,7 +439,7 @@ static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
 	/* wait for the first buffer */
 	if (!(file->f_flags & O_NONBLOCK)) {
 		if (wait_event_interruptible(dev->wait_data,
-					     hdpvr_get_next_buffer(dev)))
+					     !list_empty_careful(&dev->rec_buff_list)))
 			return -ERESTARTSYS;
 	}
 
@@ -465,10 +465,17 @@ static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
 				goto err;
 			}
 			if (!err) {
-				v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
-					"timeout: restart streaming\n");
+				v4l2_info(&dev->v4l2_dev,
+					  "timeout: restart streaming\n");
+				mutex_lock(&dev->io_mutex);
 				hdpvr_stop_streaming(dev);
-				msecs_to_jiffies(4000);
+				mutex_unlock(&dev->io_mutex);
+				/*
+				 * The FW needs about 4 seconds after streaming
+				 * stopped before it is ready to restart
+				 * streaming.
+				 */
+				msleep(4000);
 				err = hdpvr_start_streaming(dev);
 				if (err) {
 					ret = err;
@@ -1133,9 +1140,7 @@ static void hdpvr_device_release(struct video_device *vdev)
 	struct hdpvr_device *dev = video_get_drvdata(vdev);
 
 	hdpvr_delete(dev);
-	mutex_lock(&dev->io_mutex);
 	flush_work(&dev->worker);
-	mutex_unlock(&dev->io_mutex);
 
 	v4l2_device_unregister(&dev->v4l2_dev);
 	v4l2_ctrl_handler_free(&dev->hdl);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 072/293] rtlwifi: rtl8192cu: fix error handle when usb probe failed
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (70 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 071/293] media: hdpvr: fix locking and a missing msleep Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 073/293] mt7601u: do not schedule rx_tasklet when the device has been disconnected Greg Kroah-Hartman
                   ` (226 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+1fcc5ef45175fc774231,
	Ping-Ke Shih, Larry Finger, Kalle Valo, Sasha Levin

[ Upstream commit 6c0ed66f1a5b84e2a812c7c2d6571a5621bf3396 ]

rtl_usb_probe() must do error handle rtl_deinit_core() only if
rtl_init_core() is done, otherwise goto error_out2.

| usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
| rtl_usb: reg 0xf0, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0
| rtl8192cu: Chip version 0x10
| rtl_usb: reg 0xa, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0
| rtl_usb: Too few input end points found
| INFO: trying to register non-static key.
| the code is fine but needs lockdep annotation.
| turning off the locking correctness validator.
| CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3
| Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
| Google 01/01/2011
| Workqueue: usb_hub_wq hub_event
| Call Trace:
|   __dump_stack lib/dump_stack.c:77 [inline]
|   dump_stack+0xe8/0x16e lib/dump_stack.c:113
|   assign_lock_key kernel/locking/lockdep.c:786 [inline]
|   register_lock_class+0x11b8/0x1250 kernel/locking/lockdep.c:1095
|   __lock_acquire+0xfb/0x37c0 kernel/locking/lockdep.c:3582
|   lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
|   __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
|   _raw_spin_lock_irqsave+0x44/0x60 kernel/locking/spinlock.c:152
|   rtl_c2hcmd_launcher+0xd1/0x390
| drivers/net/wireless/realtek/rtlwifi/base.c:2344
|   rtl_deinit_core+0x25/0x2d0 drivers/net/wireless/realtek/rtlwifi/base.c:574
|   rtl_usb_probe.cold+0x861/0xa70
| drivers/net/wireless/realtek/rtlwifi/usb.c:1093
|   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
|   really_probe+0x2da/0xb10 drivers/base/dd.c:509
|   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
|   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
|   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
|   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
|   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
|   device_add+0xad2/0x16e0 drivers/base/core.c:2106
|   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
|   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
|   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
|   really_probe+0x2da/0xb10 drivers/base/dd.c:509
|   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
|   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
|   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
|   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
|   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
|   device_add+0xad2/0x16e0 drivers/base/core.c:2106
|   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
|   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
|   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
|   port_event drivers/usb/core/hub.c:5350 [inline]
|   hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
|   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
|   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
|   kthread+0x313/0x420 kernel/kthread.c:253
|   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

Reported-by: syzbot+1fcc5ef45175fc774231@syzkaller.appspotmail.com
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtlwifi/usb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/usb.c b/drivers/net/wireless/realtek/rtlwifi/usb.c
index 820c42ff5384..2401c8bdb211 100644
--- a/drivers/net/wireless/realtek/rtlwifi/usb.c
+++ b/drivers/net/wireless/realtek/rtlwifi/usb.c
@@ -1099,13 +1099,13 @@ int rtl_usb_probe(struct usb_interface *intf,
 	rtlpriv->cfg->ops->read_eeprom_info(hw);
 	err = _rtl_usb_init(hw);
 	if (err)
-		goto error_out;
+		goto error_out2;
 	rtl_usb_init_sw(hw);
 	/* Init mac80211 sw */
 	err = rtl_init_core(hw);
 	if (err) {
 		pr_err("Can't allocate sw for mac80211\n");
-		goto error_out;
+		goto error_out2;
 	}
 	if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
 		pr_err("Can't init_sw_vars\n");
@@ -1126,6 +1126,7 @@ int rtl_usb_probe(struct usb_interface *intf,
 
 error_out:
 	rtl_deinit_core(hw);
+error_out2:
 	_rtl_usb_io_handler_release(hw);
 	usb_put_dev(udev);
 	complete(&rtlpriv->firmware_loading_complete);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 073/293] mt7601u: do not schedule rx_tasklet when the device has been disconnected
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (71 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 072/293] rtlwifi: rtl8192cu: fix error handle when usb probe failed Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 074/293] x86/build: Add set -e to mkcapflags.sh to delete broken capflags.c Greg Kroah-Hartman
                   ` (225 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Kalle Valo, Sasha Levin

[ Upstream commit 4079e8ccabc3b6d1b503f2376123cb515d14921f ]

Do not schedule rx_tasklet when the usb dongle is disconnected.
Moreover do not grub rx_lock in mt7601u_kill_rx since usb_poison_urb
can run concurrently with urb completion and we can unlink urbs from rx
ring in any order.
This patch fixes the common kernel warning reported when
the device is removed.

[   24.921354] usb 3-14: USB disconnect, device number 7
[   24.921593] ------------[ cut here ]------------
[   24.921594] RX urb mismatch
[   24.921675] WARNING: CPU: 4 PID: 163 at drivers/net/wireless/mediatek/mt7601u/dma.c:200 mt7601u_complete_rx+0xcb/0xd0 [mt7601u]
[   24.921769] CPU: 4 PID: 163 Comm: kworker/4:2 Tainted: G           OE     4.19.31-041931-generic #201903231635
[   24.921770] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z97 Extreme4, BIOS P1.30 05/23/2014
[   24.921782] Workqueue: usb_hub_wq hub_event
[   24.921797] RIP: 0010:mt7601u_complete_rx+0xcb/0xd0 [mt7601u]
[   24.921800] RSP: 0018:ffff9bd9cfd03d08 EFLAGS: 00010086
[   24.921802] RAX: 0000000000000000 RBX: ffff9bd9bf043540 RCX: 0000000000000006
[   24.921803] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9bd9cfd16420
[   24.921804] RBP: ffff9bd9cfd03d28 R08: 0000000000000002 R09: 00000000000003a8
[   24.921805] R10: 0000002f485fca34 R11: 0000000000000000 R12: ffff9bd9bf043c1c
[   24.921806] R13: ffff9bd9c62fa3c0 R14: 0000000000000082 R15: 0000000000000000
[   24.921807] FS:  0000000000000000(0000) GS:ffff9bd9cfd00000(0000) knlGS:0000000000000000
[   24.921808] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.921808] CR2: 00007fb2648b0000 CR3: 0000000142c0a004 CR4: 00000000001606e0
[   24.921809] Call Trace:
[   24.921812]  <IRQ>
[   24.921819]  __usb_hcd_giveback_urb+0x8b/0x140
[   24.921821]  usb_hcd_giveback_urb+0xca/0xe0
[   24.921828]  xhci_giveback_urb_in_irq.isra.42+0x82/0xf0
[   24.921834]  handle_cmd_completion+0xe02/0x10d0
[   24.921837]  xhci_irq+0x274/0x4a0
[   24.921838]  xhci_msi_irq+0x11/0x20
[   24.921851]  __handle_irq_event_percpu+0x44/0x190
[   24.921856]  handle_irq_event_percpu+0x32/0x80
[   24.921861]  handle_irq_event+0x3b/0x5a
[   24.921867]  handle_edge_irq+0x80/0x190
[   24.921874]  handle_irq+0x20/0x30
[   24.921889]  do_IRQ+0x4e/0xe0
[   24.921891]  common_interrupt+0xf/0xf
[   24.921892]  </IRQ>
[   24.921900] RIP: 0010:usb_hcd_flush_endpoint+0x78/0x180
[   24.921354] usb 3-14: USB disconnect, device number 7

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt7601u/dma.c | 33 +++++++++++----------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt7601u/dma.c b/drivers/net/wireless/mediatek/mt7601u/dma.c
index 7f3e3983b781..bc36712cfffc 100644
--- a/drivers/net/wireless/mediatek/mt7601u/dma.c
+++ b/drivers/net/wireless/mediatek/mt7601u/dma.c
@@ -193,10 +193,23 @@ static void mt7601u_complete_rx(struct urb *urb)
 	struct mt7601u_rx_queue *q = &dev->rx_q;
 	unsigned long flags;
 
-	spin_lock_irqsave(&dev->rx_lock, flags);
+	/* do no schedule rx tasklet if urb has been unlinked
+	 * or the device has been removed
+	 */
+	switch (urb->status) {
+	case -ECONNRESET:
+	case -ESHUTDOWN:
+	case -ENOENT:
+		return;
+	default:
+		dev_err_ratelimited(dev->dev, "rx urb failed: %d\n",
+				    urb->status);
+		/* fall through */
+	case 0:
+		break;
+	}
 
-	if (mt7601u_urb_has_error(urb))
-		dev_err(dev->dev, "Error: RX urb failed:%d\n", urb->status);
+	spin_lock_irqsave(&dev->rx_lock, flags);
 	if (WARN_ONCE(q->e[q->end].urb != urb, "RX urb mismatch"))
 		goto out;
 
@@ -363,19 +376,9 @@ int mt7601u_dma_enqueue_tx(struct mt7601u_dev *dev, struct sk_buff *skb,
 static void mt7601u_kill_rx(struct mt7601u_dev *dev)
 {
 	int i;
-	unsigned long flags;
 
-	spin_lock_irqsave(&dev->rx_lock, flags);
-
-	for (i = 0; i < dev->rx_q.entries; i++) {
-		int next = dev->rx_q.end;
-
-		spin_unlock_irqrestore(&dev->rx_lock, flags);
-		usb_poison_urb(dev->rx_q.e[next].urb);
-		spin_lock_irqsave(&dev->rx_lock, flags);
-	}
-
-	spin_unlock_irqrestore(&dev->rx_lock, flags);
+	for (i = 0; i < dev->rx_q.entries; i++)
+		usb_poison_urb(dev->rx_q.e[i].urb);
 }
 
 static int mt7601u_submit_rx_buf(struct mt7601u_dev *dev,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 074/293] x86/build: Add set -e to mkcapflags.sh to delete broken capflags.c
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (72 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 073/293] mt7601u: do not schedule rx_tasklet when the device has been disconnected Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 075/293] mt7601u: fix possible memory leak when the device is disconnected Greg Kroah-Hartman
                   ` (224 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Masahiro Yamada, Thomas Gleixner,
	H. Peter Anvin, Borislav Petkov, Sasha Levin

[ Upstream commit bc53d3d777f81385c1bb08b07bd1c06450ecc2c1 ]

Without 'set -e', shell scripts continue running even after any
error occurs. The missed 'set -e' is a typical bug in shell scripting.

For example, when a disk space shortage occurs while this script is
running, it actually ends up with generating a truncated capflags.c.

Yet, mkcapflags.sh continues running and exits with 0. So, the build
system assumes it has succeeded.

It will not be re-generated in the next invocation of Make since its
timestamp is newer than that of any of the source files.

Add 'set -e' so that any error in this script is caught and propagated
to the build system.

Since 9c2af1c7377a ("kbuild: add .DELETE_ON_ERROR special target"),
make automatically deletes the target on any failure. So, the broken
capflags.c will be deleted automatically.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@alien8.de>
Link: https://lkml.kernel.org/r/20190625072622.17679-1-yamada.masahiro@socionext.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mkcapflags.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh
index d0dfb892c72f..aed45b8895d5 100644
--- a/arch/x86/kernel/cpu/mkcapflags.sh
+++ b/arch/x86/kernel/cpu/mkcapflags.sh
@@ -4,6 +4,8 @@
 # Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h
 #
 
+set -e
+
 IN=$1
 OUT=$2
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 075/293] mt7601u: fix possible memory leak when the device is disconnected
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (73 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 074/293] x86/build: Add set -e to mkcapflags.sh to delete broken capflags.c Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 076/293] ipvs: fix tinfo memory leak in start_sync_thread Greg Kroah-Hartman
                   ` (223 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jakub Kicinski, Lorenzo Bianconi,
	Kalle Valo, Sasha Levin

[ Upstream commit 23377c200b2eb48a60d0f228b2a2e75ed6ee6060 ]

When the device is disconnected while passing traffic it is possible
to receive out of order urbs causing a memory leak since the skb linked
to the current tx urb is not removed. Fix the issue deallocating the skb
cleaning up the tx ring. Moreover this patch fixes the following kernel
warning

[   57.480771] usb 1-1: USB disconnect, device number 2
[   57.483451] ------------[ cut here ]------------
[   57.483462] TX urb mismatch
[   57.483481] WARNING: CPU: 1 PID: 32 at drivers/net/wireless/mediatek/mt7601u/dma.c:245 mt7601u_complete_tx+0x165/00
[   57.483483] Modules linked in:
[   57.483496] CPU: 1 PID: 32 Comm: kworker/1:1 Not tainted 5.2.0-rc1+ #72
[   57.483498] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.12.0-2.fc30 04/01/2014
[   57.483502] Workqueue: usb_hub_wq hub_event
[   57.483507] RIP: 0010:mt7601u_complete_tx+0x165/0x1e0
[   57.483510] Code: 8b b5 10 04 00 00 8b 8d 14 04 00 00 eb 8b 80 3d b1 cb e1 00 00 75 9e 48 c7 c7 a4 ea 05 82 c6 05 f
[   57.483513] RSP: 0000:ffffc900000a0d28 EFLAGS: 00010092
[   57.483516] RAX: 000000000000000f RBX: ffff88802c0a62c0 RCX: ffffc900000a0c2c
[   57.483518] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff810a8371
[   57.483520] RBP: ffff88803ced6858 R08: 0000000000000000 R09: 0000000000000001
[   57.483540] R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000046
[   57.483542] R13: ffff88802c0a6c88 R14: ffff88803baab540 R15: ffff88803a0cc078
[   57.483548] FS:  0000000000000000(0000) GS:ffff88803eb00000(0000) knlGS:0000000000000000
[   57.483550] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.483552] CR2: 000055e7f6780100 CR3: 0000000028c86000 CR4: 00000000000006a0
[   57.483554] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.483556] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   57.483559] Call Trace:
[   57.483561]  <IRQ>
[   57.483565]  __usb_hcd_giveback_urb+0x77/0xe0
[   57.483570]  xhci_giveback_urb_in_irq.isra.0+0x8b/0x140
[   57.483574]  handle_cmd_completion+0xf5b/0x12c0
[   57.483577]  xhci_irq+0x1f6/0x1810
[   57.483581]  ? lockdep_hardirqs_on+0x9e/0x180
[   57.483584]  ? _raw_spin_unlock_irq+0x24/0x30
[   57.483588]  __handle_irq_event_percpu+0x3a/0x260
[   57.483592]  handle_irq_event_percpu+0x1c/0x60
[   57.483595]  handle_irq_event+0x2f/0x4c
[   57.483599]  handle_edge_irq+0x7e/0x1a0
[   57.483603]  handle_irq+0x17/0x20
[   57.483607]  do_IRQ+0x54/0x110
[   57.483610]  common_interrupt+0xf/0xf
[   57.483612]  </IRQ>

Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt7601u/dma.c | 21 ++++++++++++++++-----
 drivers/net/wireless/mediatek/mt7601u/tx.c  |  4 ++--
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt7601u/dma.c b/drivers/net/wireless/mediatek/mt7601u/dma.c
index bc36712cfffc..47cebb2ec05c 100644
--- a/drivers/net/wireless/mediatek/mt7601u/dma.c
+++ b/drivers/net/wireless/mediatek/mt7601u/dma.c
@@ -241,14 +241,25 @@ static void mt7601u_complete_tx(struct urb *urb)
 	struct sk_buff *skb;
 	unsigned long flags;
 
-	spin_lock_irqsave(&dev->tx_lock, flags);
+	switch (urb->status) {
+	case -ECONNRESET:
+	case -ESHUTDOWN:
+	case -ENOENT:
+		return;
+	default:
+		dev_err_ratelimited(dev->dev, "tx urb failed: %d\n",
+				    urb->status);
+		/* fall through */
+	case 0:
+		break;
+	}
 
-	if (mt7601u_urb_has_error(urb))
-		dev_err(dev->dev, "Error: TX urb failed:%d\n", urb->status);
+	spin_lock_irqsave(&dev->tx_lock, flags);
 	if (WARN_ONCE(q->e[q->start].urb != urb, "TX urb mismatch"))
 		goto out;
 
 	skb = q->e[q->start].skb;
+	q->e[q->start].skb = NULL;
 	trace_mt_tx_dma_done(dev, skb);
 
 	__skb_queue_tail(&dev->tx_skb_done, skb);
@@ -448,10 +459,10 @@ static void mt7601u_free_tx_queue(struct mt7601u_tx_queue *q)
 {
 	int i;
 
-	WARN_ON(q->used);
-
 	for (i = 0; i < q->entries; i++)  {
 		usb_poison_urb(q->e[i].urb);
+		if (q->e[i].skb)
+			mt7601u_tx_status(q->dev, q->e[i].skb);
 		usb_free_urb(q->e[i].urb);
 	}
 }
diff --git a/drivers/net/wireless/mediatek/mt7601u/tx.c b/drivers/net/wireless/mediatek/mt7601u/tx.c
index 3600e911a63e..4d81c45722fb 100644
--- a/drivers/net/wireless/mediatek/mt7601u/tx.c
+++ b/drivers/net/wireless/mediatek/mt7601u/tx.c
@@ -117,9 +117,9 @@ void mt7601u_tx_status(struct mt7601u_dev *dev, struct sk_buff *skb)
 	info->status.rates[0].idx = -1;
 	info->flags |= IEEE80211_TX_STAT_ACK;
 
-	spin_lock(&dev->mac_lock);
+	spin_lock_bh(&dev->mac_lock);
 	ieee80211_tx_status(dev->hw, skb);
-	spin_unlock(&dev->mac_lock);
+	spin_unlock_bh(&dev->mac_lock);
 }
 
 static int mt7601u_skb_rooms(struct mt7601u_dev *dev, struct sk_buff *skb)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 076/293] ipvs: fix tinfo memory leak in start_sync_thread
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (74 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 075/293] mt7601u: fix possible memory leak when the device is disconnected Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 077/293] ath10k: add missing error handling Greg Kroah-Hartman
                   ` (222 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+7e2e50c8adfccd2e5041,
	Eric Biggers, Julian Anastasov, Simon Horman, Pablo Neira Ayuso,
	Sasha Levin

[ Upstream commit 5db7c8b9f9fc2aeec671ae3ca6375752c162e0e7 ]

syzkaller reports for memory leak in start_sync_thread [1]

As Eric points out, kthread may start and stop before the
threadfn function is called, so there is no chance the
data (tinfo in our case) to be released in thread.

Fix this by releasing tinfo in the controlling code instead.

[1]
BUG: memory leak
unreferenced object 0xffff8881206bf700 (size 32):
 comm "syz-executor761", pid 7268, jiffies 4294943441 (age 20.470s)
 hex dump (first 32 bytes):
   00 40 7c 09 81 88 ff ff 80 45 b8 21 81 88 ff ff  .@|......E.!....
   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 backtrace:
   [<0000000057619e23>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline]
   [<0000000057619e23>] slab_post_alloc_hook mm/slab.h:439 [inline]
   [<0000000057619e23>] slab_alloc mm/slab.c:3326 [inline]
   [<0000000057619e23>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
   [<0000000086ce5479>] kmalloc include/linux/slab.h:547 [inline]
   [<0000000086ce5479>] start_sync_thread+0x5d2/0xe10 net/netfilter/ipvs/ip_vs_sync.c:1862
   [<000000001a9229cc>] do_ip_vs_set_ctl+0x4c5/0x780 net/netfilter/ipvs/ip_vs_ctl.c:2402
   [<00000000ece457c8>] nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
   [<00000000ece457c8>] nf_setsockopt+0x4c/0x80 net/netfilter/nf_sockopt.c:115
   [<00000000942f62d4>] ip_setsockopt net/ipv4/ip_sockglue.c:1258 [inline]
   [<00000000942f62d4>] ip_setsockopt+0x9b/0xb0 net/ipv4/ip_sockglue.c:1238
   [<00000000a56a8ffd>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2616
   [<00000000fa895401>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3130
   [<0000000095eef4cf>] __sys_setsockopt+0x98/0x120 net/socket.c:2078
   [<000000009747cf88>] __do_sys_setsockopt net/socket.c:2089 [inline]
   [<000000009747cf88>] __se_sys_setsockopt net/socket.c:2086 [inline]
   [<000000009747cf88>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2086
   [<00000000ded8ba80>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
   [<00000000893b4ac8>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported-by: syzbot+7e2e50c8adfccd2e5041@syzkaller.appspotmail.com
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Fixes: 998e7a76804b ("ipvs: Use kthread_run() instead of doing a double-fork via kernel_thread()")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/ip_vs.h             |   6 +-
 net/netfilter/ipvs/ip_vs_ctl.c  |   4 -
 net/netfilter/ipvs/ip_vs_sync.c | 134 +++++++++++++++++---------------
 3 files changed, 76 insertions(+), 68 deletions(-)

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 5d08c1950e7d..82bc9f0e8a76 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -812,11 +812,12 @@ struct ipvs_master_sync_state {
 	struct ip_vs_sync_buff	*sync_buff;
 	unsigned long		sync_queue_len;
 	unsigned int		sync_queue_delay;
-	struct task_struct	*master_thread;
 	struct delayed_work	master_wakeup_work;
 	struct netns_ipvs	*ipvs;
 };
 
+struct ip_vs_sync_thread_data;
+
 /* How much time to keep dests in trash */
 #define IP_VS_DEST_TRASH_PERIOD		(120 * HZ)
 
@@ -947,7 +948,8 @@ struct netns_ipvs {
 	spinlock_t		sync_lock;
 	struct ipvs_master_sync_state *ms;
 	spinlock_t		sync_buff_lock;
-	struct task_struct	**backup_threads;
+	struct ip_vs_sync_thread_data *master_tinfo;
+	struct ip_vs_sync_thread_data *backup_tinfo;
 	int			threads_mask;
 	volatile int		sync_state;
 	struct mutex		sync_mutex;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 6d7608b88f66..4648dccebf59 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2414,9 +2414,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 			cfg.syncid = dm->syncid;
 			ret = start_sync_thread(ipvs, &cfg, dm->state);
 		} else {
-			mutex_lock(&ipvs->sync_mutex);
 			ret = stop_sync_thread(ipvs, dm->state);
-			mutex_unlock(&ipvs->sync_mutex);
 		}
 		goto out_dec;
 	}
@@ -3524,10 +3522,8 @@ static int ip_vs_genl_del_daemon(struct netns_ipvs *ipvs, struct nlattr **attrs)
 	if (!attrs[IPVS_DAEMON_ATTR_STATE])
 		return -EINVAL;
 
-	mutex_lock(&ipvs->sync_mutex);
 	ret = stop_sync_thread(ipvs,
 			       nla_get_u32(attrs[IPVS_DAEMON_ATTR_STATE]));
-	mutex_unlock(&ipvs->sync_mutex);
 	return ret;
 }
 
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 5e07f7a6794e..b578ebb3d7ef 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -195,6 +195,7 @@ union ip_vs_sync_conn {
 #define IPVS_OPT_F_PARAM	(1 << (IPVS_OPT_PARAM-1))
 
 struct ip_vs_sync_thread_data {
+	struct task_struct *task;
 	struct netns_ipvs *ipvs;
 	struct socket *sock;
 	char *buf;
@@ -374,8 +375,11 @@ static inline void sb_queue_tail(struct netns_ipvs *ipvs,
 					      max(IPVS_SYNC_SEND_DELAY, 1));
 		ms->sync_queue_len++;
 		list_add_tail(&sb->list, &ms->sync_queue);
-		if ((++ms->sync_queue_delay) == IPVS_SYNC_WAKEUP_RATE)
-			wake_up_process(ms->master_thread);
+		if ((++ms->sync_queue_delay) == IPVS_SYNC_WAKEUP_RATE) {
+			int id = (int)(ms - ipvs->ms);
+
+			wake_up_process(ipvs->master_tinfo[id].task);
+		}
 	} else
 		ip_vs_sync_buff_release(sb);
 	spin_unlock(&ipvs->sync_lock);
@@ -1645,8 +1649,10 @@ static void master_wakeup_work_handler(struct work_struct *work)
 	spin_lock_bh(&ipvs->sync_lock);
 	if (ms->sync_queue_len &&
 	    ms->sync_queue_delay < IPVS_SYNC_WAKEUP_RATE) {
+		int id = (int)(ms - ipvs->ms);
+
 		ms->sync_queue_delay = IPVS_SYNC_WAKEUP_RATE;
-		wake_up_process(ms->master_thread);
+		wake_up_process(ipvs->master_tinfo[id].task);
 	}
 	spin_unlock_bh(&ipvs->sync_lock);
 }
@@ -1712,10 +1718,6 @@ static int sync_thread_master(void *data)
 	if (sb)
 		ip_vs_sync_buff_release(sb);
 
-	/* release the sending multicast socket */
-	sock_release(tinfo->sock);
-	kfree(tinfo);
-
 	return 0;
 }
 
@@ -1749,11 +1751,6 @@ static int sync_thread_backup(void *data)
 		}
 	}
 
-	/* release the sending multicast socket */
-	sock_release(tinfo->sock);
-	kfree(tinfo->buf);
-	kfree(tinfo);
-
 	return 0;
 }
 
@@ -1761,8 +1758,8 @@ static int sync_thread_backup(void *data)
 int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 		      int state)
 {
-	struct ip_vs_sync_thread_data *tinfo = NULL;
-	struct task_struct **array = NULL, *task;
+	struct ip_vs_sync_thread_data *ti = NULL, *tinfo;
+	struct task_struct *task;
 	struct net_device *dev;
 	char *name;
 	int (*threadfn)(void *data);
@@ -1831,7 +1828,7 @@ int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 		threadfn = sync_thread_master;
 	} else if (state == IP_VS_STATE_BACKUP) {
 		result = -EEXIST;
-		if (ipvs->backup_threads)
+		if (ipvs->backup_tinfo)
 			goto out_early;
 
 		ipvs->bcfg = *c;
@@ -1858,28 +1855,22 @@ int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 					  master_wakeup_work_handler);
 			ms->ipvs = ipvs;
 		}
-	} else {
-		array = kcalloc(count, sizeof(struct task_struct *),
-				GFP_KERNEL);
-		result = -ENOMEM;
-		if (!array)
-			goto out;
 	}
+	result = -ENOMEM;
+	ti = kcalloc(count, sizeof(struct ip_vs_sync_thread_data),
+		     GFP_KERNEL);
+	if (!ti)
+		goto out;
 
 	for (id = 0; id < count; id++) {
-		result = -ENOMEM;
-		tinfo = kmalloc(sizeof(*tinfo), GFP_KERNEL);
-		if (!tinfo)
-			goto out;
+		tinfo = &ti[id];
 		tinfo->ipvs = ipvs;
-		tinfo->sock = NULL;
 		if (state == IP_VS_STATE_BACKUP) {
+			result = -ENOMEM;
 			tinfo->buf = kmalloc(ipvs->bcfg.sync_maxlen,
 					     GFP_KERNEL);
 			if (!tinfo->buf)
 				goto out;
-		} else {
-			tinfo->buf = NULL;
 		}
 		tinfo->id = id;
 		if (state == IP_VS_STATE_MASTER)
@@ -1894,17 +1885,15 @@ int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 			result = PTR_ERR(task);
 			goto out;
 		}
-		tinfo = NULL;
-		if (state == IP_VS_STATE_MASTER)
-			ipvs->ms[id].master_thread = task;
-		else
-			array[id] = task;
+		tinfo->task = task;
 	}
 
 	/* mark as active */
 
-	if (state == IP_VS_STATE_BACKUP)
-		ipvs->backup_threads = array;
+	if (state == IP_VS_STATE_MASTER)
+		ipvs->master_tinfo = ti;
+	else
+		ipvs->backup_tinfo = ti;
 	spin_lock_bh(&ipvs->sync_buff_lock);
 	ipvs->sync_state |= state;
 	spin_unlock_bh(&ipvs->sync_buff_lock);
@@ -1919,29 +1908,31 @@ int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 
 out:
 	/* We do not need RTNL lock anymore, release it here so that
-	 * sock_release below and in the kthreads can use rtnl_lock
-	 * to leave the mcast group.
+	 * sock_release below can use rtnl_lock to leave the mcast group.
 	 */
 	rtnl_unlock();
-	count = id;
-	while (count-- > 0) {
-		if (state == IP_VS_STATE_MASTER)
-			kthread_stop(ipvs->ms[count].master_thread);
-		else
-			kthread_stop(array[count]);
+	id = min(id, count - 1);
+	if (ti) {
+		for (tinfo = ti + id; tinfo >= ti; tinfo--) {
+			if (tinfo->task)
+				kthread_stop(tinfo->task);
+		}
 	}
 	if (!(ipvs->sync_state & IP_VS_STATE_MASTER)) {
 		kfree(ipvs->ms);
 		ipvs->ms = NULL;
 	}
 	mutex_unlock(&ipvs->sync_mutex);
-	if (tinfo) {
-		if (tinfo->sock)
-			sock_release(tinfo->sock);
-		kfree(tinfo->buf);
-		kfree(tinfo);
+
+	/* No more mutexes, release socks */
+	if (ti) {
+		for (tinfo = ti + id; tinfo >= ti; tinfo--) {
+			if (tinfo->sock)
+				sock_release(tinfo->sock);
+			kfree(tinfo->buf);
+		}
+		kfree(ti);
 	}
-	kfree(array);
 	return result;
 
 out_early:
@@ -1953,15 +1944,18 @@ int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 
 int stop_sync_thread(struct netns_ipvs *ipvs, int state)
 {
-	struct task_struct **array;
+	struct ip_vs_sync_thread_data *ti, *tinfo;
 	int id;
 	int retc = -EINVAL;
 
 	IP_VS_DBG(7, "%s(): pid %d\n", __func__, task_pid_nr(current));
 
+	mutex_lock(&ipvs->sync_mutex);
 	if (state == IP_VS_STATE_MASTER) {
+		retc = -ESRCH;
 		if (!ipvs->ms)
-			return -ESRCH;
+			goto err;
+		ti = ipvs->master_tinfo;
 
 		/*
 		 * The lock synchronizes with sb_queue_tail(), so that we don't
@@ -1980,38 +1974,56 @@ int stop_sync_thread(struct netns_ipvs *ipvs, int state)
 			struct ipvs_master_sync_state *ms = &ipvs->ms[id];
 			int ret;
 
+			tinfo = &ti[id];
 			pr_info("stopping master sync thread %d ...\n",
-				task_pid_nr(ms->master_thread));
+				task_pid_nr(tinfo->task));
 			cancel_delayed_work_sync(&ms->master_wakeup_work);
-			ret = kthread_stop(ms->master_thread);
+			ret = kthread_stop(tinfo->task);
 			if (retc >= 0)
 				retc = ret;
 		}
 		kfree(ipvs->ms);
 		ipvs->ms = NULL;
+		ipvs->master_tinfo = NULL;
 	} else if (state == IP_VS_STATE_BACKUP) {
-		if (!ipvs->backup_threads)
-			return -ESRCH;
+		retc = -ESRCH;
+		if (!ipvs->backup_tinfo)
+			goto err;
+		ti = ipvs->backup_tinfo;
 
 		ipvs->sync_state &= ~IP_VS_STATE_BACKUP;
-		array = ipvs->backup_threads;
 		retc = 0;
 		for (id = ipvs->threads_mask; id >= 0; id--) {
 			int ret;
 
+			tinfo = &ti[id];
 			pr_info("stopping backup sync thread %d ...\n",
-				task_pid_nr(array[id]));
-			ret = kthread_stop(array[id]);
+				task_pid_nr(tinfo->task));
+			ret = kthread_stop(tinfo->task);
 			if (retc >= 0)
 				retc = ret;
 		}
-		kfree(array);
-		ipvs->backup_threads = NULL;
+		ipvs->backup_tinfo = NULL;
+	} else {
+		goto err;
 	}
+	id = ipvs->threads_mask;
+	mutex_unlock(&ipvs->sync_mutex);
+
+	/* No more mutexes, release socks */
+	for (tinfo = ti + id; tinfo >= ti; tinfo--) {
+		if (tinfo->sock)
+			sock_release(tinfo->sock);
+		kfree(tinfo->buf);
+	}
+	kfree(ti);
 
 	/* decrease the module use count */
 	ip_vs_use_count_dec();
+	return retc;
 
+err:
+	mutex_unlock(&ipvs->sync_mutex);
 	return retc;
 }
 
@@ -2030,7 +2042,6 @@ void ip_vs_sync_net_cleanup(struct netns_ipvs *ipvs)
 {
 	int retc;
 
-	mutex_lock(&ipvs->sync_mutex);
 	retc = stop_sync_thread(ipvs, IP_VS_STATE_MASTER);
 	if (retc && retc != -ESRCH)
 		pr_err("Failed to stop Master Daemon\n");
@@ -2038,5 +2049,4 @@ void ip_vs_sync_net_cleanup(struct netns_ipvs *ipvs)
 	retc = stop_sync_thread(ipvs, IP_VS_STATE_BACKUP);
 	if (retc && retc != -ESRCH)
 		pr_err("Failed to stop Backup Daemon\n");
-	mutex_unlock(&ipvs->sync_mutex);
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 077/293] ath10k: add missing error handling
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (75 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 076/293] ipvs: fix tinfo memory leak in start_sync_thread Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 078/293] ath10k: fix PCIE device wake up failed Greg Kroah-Hartman
                   ` (221 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Claire Chang, Brian Norris,
	Kalle Valo, Sasha Levin

[ Upstream commit 4b553f3ca4cbde67399aa3a756c37eb92145b8a1 ]

In function ath10k_sdio_mbox_rx_alloc() [sdio.c],
ath10k_sdio_mbox_alloc_rx_pkt() is called without handling the error cases.
This will make the driver think the allocation for skb is successful and
try to access the skb. If we enable failslab, system will easily crash with
NULL pointer dereferencing.

Call trace of CONFIG_FAILSLAB:
ath10k_sdio_irq_handler+0x570/0xa88 [ath10k_sdio]
process_sdio_pending_irqs+0x4c/0x174
sdio_run_irqs+0x3c/0x64
sdio_irq_work+0x1c/0x28

Fixes: d96db25d2025 ("ath10k: add initial SDIO support")
Signed-off-by: Claire Chang <tientzu@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/sdio.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index da9dbf3ddaa5..c6440d28ab48 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -610,6 +610,10 @@ static int ath10k_sdio_mbox_rx_alloc(struct ath10k *ar,
 						    full_len,
 						    last_in_bundle,
 						    last_in_bundle);
+		if (ret) {
+			ath10k_warn(ar, "alloc_rx_pkt error %d\n", ret);
+			goto err;
+		}
 	}
 
 	ar_sdio->n_rx_pkts = i;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 078/293] ath10k: fix PCIE device wake up failed
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (76 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 077/293] ath10k: add missing error handling Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 079/293] perf tools: Increase MAX_NR_CPUS and MAX_CACHES Greg Kroah-Hartman
                   ` (220 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Miaoqing Pan, Kalle Valo, Sasha Levin

[ Upstream commit 011d4111c8c602ea829fa4917af1818eb0500a90 ]

Observed PCIE device wake up failed after ~120 iterations of
soft-reboot test. The error message is
"ath10k_pci 0000:01:00.0: failed to wake up device : -110"

The call trace as below:
ath10k_pci_probe -> ath10k_pci_force_wake -> ath10k_pci_wake_wait ->
ath10k_pci_is_awake

Once trigger the device to wake up, we will continuously check the RTC
state until it returns RTC_STATE_V_ON or timeout.

But for QCA99x0 chips, we use wrong value for RTC_STATE_V_ON.
Occasionally, we get 0x7 on the fist read, we thought as a failure
case, but actually is the right value, also verified with the spec.
So fix the issue by changing RTC_STATE_V_ON from 0x5 to 0x7, passed
~2000 iterations.

Tested HW: QCA9984

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/hw.c b/drivers/net/wireless/ath/ath10k/hw.c
index a860691d635d..e96534cd3d8b 100644
--- a/drivers/net/wireless/ath/ath10k/hw.c
+++ b/drivers/net/wireless/ath/ath10k/hw.c
@@ -168,7 +168,7 @@ const struct ath10k_hw_values qca6174_values = {
 };
 
 const struct ath10k_hw_values qca99x0_values = {
-	.rtc_state_val_on		= 5,
+	.rtc_state_val_on		= 7,
 	.ce_count			= 12,
 	.msi_assign_ce_max		= 12,
 	.num_target_ce_config_wlan	= 10,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 079/293] perf tools: Increase MAX_NR_CPUS and MAX_CACHES
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (77 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 078/293] ath10k: fix PCIE device wake up failed Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 080/293] libata: dont request sense data on !ZAC ATA devices Greg Kroah-Hartman
                   ` (219 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Kyle Meyer, Alexander Shishkin,
	Jiri Olsa, Namhyung Kim, Peter Zijlstra,
	Arnaldo Carvalho de Melo, Sasha Levin

[ Upstream commit 9f94c7f947e919c343b30f080285af53d0fa9902 ]

Attempting to profile 1024 or more CPUs with perf causes two errors:

  perf record -a
  [ perf record: Woken up X times to write data ]
  way too many cpu caches..
  [ perf record: Captured and wrote X MB perf.data (X samples) ]

  perf report -C 1024
  Error: failed to set  cpu bitmap
  Requested CPU 1024 too large. Consider raising MAX_NR_CPUS

  Increasing MAX_NR_CPUS from 1024 to 2048 and redefining MAX_CACHES as
  MAX_NR_CPUS * 4 returns normal functionality to perf:

  perf record -a
  [ perf record: Woken up X times to write data ]
  [ perf record: Captured and wrote X MB perf.data (X samples) ]

  perf report -C 1024
  ...

Signed-off-by: Kyle Meyer <kyle.meyer@hpe.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190620193630.154025-1-meyerk@stormcage.eag.rdlabs.hpecorp.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/perf.h        | 2 +-
 tools/perf/util/header.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 96f62dd7e3ed..d4ebd0956114 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -25,7 +25,7 @@ static inline unsigned long long rdclock(void)
 }
 
 #ifndef MAX_NR_CPUS
-#define MAX_NR_CPUS			1024
+#define MAX_NR_CPUS			2048
 #endif
 
 extern const char *input_name;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index f11cead6a151..26437143c940 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1122,7 +1122,7 @@ static int build_caches(struct cpu_cache_level caches[], u32 size, u32 *cntp)
 	return 0;
 }
 
-#define MAX_CACHES 2000
+#define MAX_CACHES (MAX_NR_CPUS * 4)
 
 static int write_cache(struct feat_fd *ff,
 		       struct perf_evlist *evlist __maybe_unused)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 080/293] libata: dont request sense data on !ZAC ATA devices
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (78 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 079/293] perf tools: Increase MAX_NR_CPUS and MAX_CACHES Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 081/293] clocksource/drivers/exynos_mct: Increase priority over ARM arch timer Greg Kroah-Hartman
                   ` (218 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Hannes Reinecke, Masato Suzuki,
	Damien Le Moal, Tejun Heo, Jens Axboe, Sasha Levin

[ Upstream commit ca156e006add67e4beea7896be395160735e09b0 ]

ZAC support added sense data requesting on error for both ZAC and ATA
devices. This seems to cause erratic error handling behaviors on some
SSDs where the device reports sense data availability and then
delivers the wrong content making EH take the wrong actions.  The
failure mode was sporadic on a LITE-ON ssd and couldn't be reliably
reproduced.

There is no value in requesting sense data from non-ZAC ATA devices
while there's a significant risk of introducing EH misbehaviors which
are difficult to reproduce and fix.  Let's do the sense data dancing
only for ZAC devices.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Masato Suzuki <masato.suzuki@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/libata-eh.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 2651c81d1edf..c398be4b1797 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1535,7 +1535,7 @@ static int ata_eh_read_log_10h(struct ata_device *dev,
 	tf->hob_lbah = buf[10];
 	tf->nsect = buf[12];
 	tf->hob_nsect = buf[13];
-	if (ata_id_has_ncq_autosense(dev->id))
+	if (dev->class == ATA_DEV_ZAC && ata_id_has_ncq_autosense(dev->id))
 		tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
 
 	return 0;
@@ -1784,7 +1784,8 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
 	memcpy(&qc->result_tf, &tf, sizeof(tf));
 	qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
 	qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
-	if ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary) {
+	if (dev->class == ATA_DEV_ZAC &&
+	    ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary)) {
 		char sense_key, asc, ascq;
 
 		sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
@@ -1838,10 +1839,11 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc,
 	}
 
 	switch (qc->dev->class) {
-	case ATA_DEV_ATA:
 	case ATA_DEV_ZAC:
 		if (stat & ATA_SENSE)
 			ata_eh_request_sense(qc, qc->scsicmd);
+		/* fall through */
+	case ATA_DEV_ATA:
 		if (err & ATA_ICRC)
 			qc->err_mask |= AC_ERR_ATA_BUS;
 		if (err & (ATA_UNC | ATA_AMNF))
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 081/293] clocksource/drivers/exynos_mct: Increase priority over ARM arch timer
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (79 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 080/293] libata: dont request sense data on !ZAC ATA devices Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 082/293] rslib: Fix decoding of shortened codes Greg Kroah-Hartman
                   ` (217 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Marek Szyprowski,
	Krzysztof Kozlowski, Chanwoo Choi, Daniel Lezcano, Sasha Levin

[ Upstream commit 6282edb72bed5324352522d732080d4c1b9dfed6 ]

Exynos SoCs based on CA7/CA15 have 2 timer interfaces: custom Exynos MCT
(Multi Core Timer) and standard ARM Architected Timers.

There are use cases, where both timer interfaces are used simultanously.
One of such examples is using Exynos MCT for the main system timer and
ARM Architected Timers for the KVM and virtualized guests (KVM requires
arch timers).

Exynos Multi-Core Timer driver (exynos_mct) must be however started
before ARM Architected Timers (arch_timer), because they both share some
common hardware blocks (global system counter) and turning on MCT is
needed to get ARM Architected Timer working properly.

To ensure selecting Exynos MCT as the main system timer, increase MCT
timer rating. To ensure proper starting order of both timers during
suspend/resume cycle, increase MCT hotplug priority over ARM Archictected
Timers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clocksource/exynos_mct.c | 4 ++--
 include/linux/cpuhotplug.h       | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index d55c30f6981d..aaf5bfa9bd9c 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -211,7 +211,7 @@ static void exynos4_frc_resume(struct clocksource *cs)
 
 static struct clocksource mct_frc = {
 	.name		= "mct-frc",
-	.rating		= 400,
+	.rating		= 450,	/* use value higher than ARM arch timer */
 	.read		= exynos4_frc_read,
 	.mask		= CLOCKSOURCE_MASK(32),
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
@@ -466,7 +466,7 @@ static int exynos4_mct_starting_cpu(unsigned int cpu)
 	evt->set_state_oneshot_stopped = set_state_shutdown;
 	evt->tick_resume = set_state_shutdown;
 	evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
-	evt->rating = 450;
+	evt->rating = 500;	/* use value higher than ARM arch timer */
 
 	exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);
 
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 0c78ad0cc515..0834eb5ea9e6 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -115,10 +115,10 @@ enum cpuhp_state {
 	CPUHP_AP_PERF_ARM_ACPI_STARTING,
 	CPUHP_AP_PERF_ARM_STARTING,
 	CPUHP_AP_ARM_L2X0_STARTING,
+	CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
 	CPUHP_AP_ARM_ARCH_TIMER_STARTING,
 	CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
 	CPUHP_AP_JCORE_TIMER_STARTING,
-	CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
 	CPUHP_AP_ARM_TWD_STARTING,
 	CPUHP_AP_METAG_TIMER_STARTING,
 	CPUHP_AP_QCOM_TIMER_STARTING,
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 082/293] rslib: Fix decoding of shortened codes
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (80 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 081/293] clocksource/drivers/exynos_mct: Increase priority over ARM arch timer Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 083/293] rslib: Fix handling of of caller provided syndrome Greg Kroah-Hartman
                   ` (216 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Ferdinand Blomqvist, Thomas Gleixner,
	Sasha Levin

[ Upstream commit 2034a42d1747fc1e1eeef2c6f1789c4d0762cb9c ]

The decoding of shortenend codes is broken. It only works as expected if
there are no erasures.

When decoding with erasures, Lambda (the error and erasure locator
polynomial) is initialized from the given erasure positions. The pad
parameter is not accounted for by the initialisation code, and hence
Lambda is initialized from incorrect erasure positions.

The fix is to adjust the erasure positions by the supplied pad.

Signed-off-by: Ferdinand Blomqvist <ferdinand.blomqvist@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190620141039.9874-3-ferdinand.blomqvist@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/reed_solomon/decode_rs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/reed_solomon/decode_rs.c b/lib/reed_solomon/decode_rs.c
index 0ec3f257ffdf..8eed0f9ac495 100644
--- a/lib/reed_solomon/decode_rs.c
+++ b/lib/reed_solomon/decode_rs.c
@@ -99,9 +99,9 @@
 	if (no_eras > 0) {
 		/* Init lambda to be the erasure locator polynomial */
 		lambda[1] = alpha_to[rs_modnn(rs,
-					      prim * (nn - 1 - eras_pos[0]))];
+					prim * (nn - 1 - (eras_pos[0] + pad)))];
 		for (i = 1; i < no_eras; i++) {
-			u = rs_modnn(rs, prim * (nn - 1 - eras_pos[i]));
+			u = rs_modnn(rs, prim * (nn - 1 - (eras_pos[i] + pad)));
 			for (j = i + 1; j > 0; j--) {
 				tmp = index_of[lambda[j - 1]];
 				if (tmp != nn) {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 083/293] rslib: Fix handling of of caller provided syndrome
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (81 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 082/293] rslib: Fix decoding of shortened codes Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 084/293] ixgbe: Check DDM existence in transceiver before access Greg Kroah-Hartman
                   ` (215 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Ferdinand Blomqvist, Thomas Gleixner,
	Sasha Levin

[ Upstream commit ef4d6a8556b637ad27c8c2a2cff1dda3da38e9a9 ]

Check if the syndrome provided by the caller is zero, and act
accordingly.

Signed-off-by: Ferdinand Blomqvist <ferdinand.blomqvist@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190620141039.9874-6-ferdinand.blomqvist@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/reed_solomon/decode_rs.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/lib/reed_solomon/decode_rs.c b/lib/reed_solomon/decode_rs.c
index 8eed0f9ac495..a5d313381539 100644
--- a/lib/reed_solomon/decode_rs.c
+++ b/lib/reed_solomon/decode_rs.c
@@ -42,8 +42,18 @@
 	BUG_ON(pad < 0 || pad >= nn);
 
 	/* Does the caller provide the syndrome ? */
-	if (s != NULL)
-		goto decode;
+	if (s != NULL) {
+		for (i = 0; i < nroots; i++) {
+			/* The syndrome is in index form,
+			 * so nn represents zero
+			 */
+			if (s[i] != nn)
+				goto decode;
+		}
+
+		/* syndrome is zero, no errors to correct  */
+		return 0;
+	}
 
 	/* form the syndromes; i.e., evaluate data(x) at roots of
 	 * g(x) */
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 084/293] ixgbe: Check DDM existence in transceiver before access
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (82 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 083/293] rslib: Fix handling of of caller provided syndrome Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 085/293] crypto: serpent - mark __serpent_setkey_sbox noinline Greg Kroah-Hartman
                   ` (214 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Mauro S. M. Rodrigues,
	Jesse Brandeburg, Andrew Bowers, Jeff Kirsher, Sasha Levin

[ Upstream commit 655c91414579d7bb115a4f7898ee726fc18e0984 ]

Some transceivers may comply with SFF-8472 but not implement the Digital
Diagnostic Monitoring (DDM) interface described in it. The existence of
such area is specified by bit 6 of byte 92, set to 1 if implemented.

Currently, due to not checking this bit ixgbe fails trying to read SFP
module's eeprom with the follow message:

ethtool -m enP51p1s0f0
Cannot get Module EEPROM data: Input/output error

Because it fails to read the additional 256 bytes in which it was assumed
to exist the DDM data.

This issue was noticed using a Mellanox Passive DAC PN 01FT738. The eeprom
data was confirmed by Mellanox as correct and present in other Passive
DACs in from other manufacturers.

Signed-off-by: "Mauro S. M. Rodrigues" <maurosr@linux.vnet.ibm.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 3 ++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h     | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index c3e7a8191128..f7e68083200c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3237,7 +3237,8 @@ static int ixgbe_get_module_info(struct net_device *dev,
 		page_swap = true;
 	}
 
-	if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap) {
+	if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap ||
+	    !(addr_mode & IXGBE_SFF_DDM_IMPLEMENTED)) {
 		/* We have a SFP, but it does not support SFF-8472 */
 		modinfo->type = ETH_MODULE_SFF_8079;
 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index b0cac961df3b..94df1d99be95 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -70,6 +70,7 @@
 #define IXGBE_SFF_SOFT_RS_SELECT_10G		0x8
 #define IXGBE_SFF_SOFT_RS_SELECT_1G		0x0
 #define IXGBE_SFF_ADDRESSING_MODE		0x4
+#define IXGBE_SFF_DDM_IMPLEMENTED		0x40
 #define IXGBE_SFF_QSFP_DA_ACTIVE_CABLE		0x1
 #define IXGBE_SFF_QSFP_DA_PASSIVE_CABLE		0x8
 #define IXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE	0x23
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 085/293] crypto: serpent - mark __serpent_setkey_sbox noinline
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (83 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 084/293] ixgbe: Check DDM existence in transceiver before access Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 086/293] crypto: asymmetric_keys - select CRYPTO_HASH where needed Greg Kroah-Hartman
                   ` (213 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Eric Biggers,
	Herbert Xu, Sasha Levin

[ Upstream commit 473971187d6727609951858c63bf12b0307ef015 ]

The same bug that gcc hit in the past is apparently now showing
up with clang, which decides to inline __serpent_setkey_sbox:

crypto/serpent_generic.c:268:5: error: stack frame size of 2112 bytes in function '__serpent_setkey' [-Werror,-Wframe-larger-than=]

Marking it 'noinline' reduces the stack usage from 2112 bytes to
192 and 96 bytes, respectively, and seems to generate more
useful object code.

Fixes: c871c10e4ea7 ("crypto: serpent - improve __serpent_setkey with UBSAN")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 crypto/serpent_generic.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c
index 7c3382facc82..600bd288881d 100644
--- a/crypto/serpent_generic.c
+++ b/crypto/serpent_generic.c
@@ -229,7 +229,13 @@
 	x4 ^= x2;					\
 	})
 
-static void __serpent_setkey_sbox(u32 r0, u32 r1, u32 r2, u32 r3, u32 r4, u32 *k)
+/*
+ * both gcc and clang have misoptimized this function in the past,
+ * producing horrible object code from spilling temporary variables
+ * on the stack. Forcing this part out of line avoids that.
+ */
+static noinline void __serpent_setkey_sbox(u32 r0, u32 r1, u32 r2,
+					   u32 r3, u32 r4, u32 *k)
 {
 	k += 100;
 	S3(r3, r4, r0, r1, r2); store_and_load_keys(r1, r2, r4, r3, 28, 24);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 086/293] crypto: asymmetric_keys - select CRYPTO_HASH where needed
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (84 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 085/293] crypto: serpent - mark __serpent_setkey_sbox noinline Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 087/293] EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec Greg Kroah-Hartman
                   ` (212 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Herbert Xu, Sasha Levin

[ Upstream commit 90acc0653d2bee203174e66d519fbaaa513502de ]

Build testing with some core crypto options disabled revealed
a few modules that are missing CRYPTO_HASH:

crypto/asymmetric_keys/x509_public_key.o: In function `x509_get_sig_params':
x509_public_key.c:(.text+0x4c7): undefined reference to `crypto_alloc_shash'
x509_public_key.c:(.text+0x5e5): undefined reference to `crypto_shash_digest'
crypto/asymmetric_keys/pkcs7_verify.o: In function `pkcs7_digest.isra.0':
pkcs7_verify.c:(.text+0xab): undefined reference to `crypto_alloc_shash'
pkcs7_verify.c:(.text+0x1b2): undefined reference to `crypto_shash_digest'
pkcs7_verify.c:(.text+0x3c1): undefined reference to `crypto_shash_update'
pkcs7_verify.c:(.text+0x411): undefined reference to `crypto_shash_finup'

This normally doesn't show up in randconfig tests because there is
a large number of other options that select CRYPTO_HASH.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 crypto/asymmetric_keys/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index f3702e533ff4..d8a73d94bb30 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -15,6 +15,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	select MPILIB
 	select CRYPTO_HASH_INFO
 	select CRYPTO_AKCIPHER
+	select CRYPTO_HASH
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,
@@ -34,6 +35,7 @@ config X509_CERTIFICATE_PARSER
 config PKCS7_MESSAGE_PARSER
 	tristate "PKCS#7 message parser"
 	depends on X509_CERTIFICATE_PARSER
+	select CRYPTO_HASH
 	select ASN1
 	select OID_REGISTRY
 	help
@@ -56,6 +58,7 @@ config SIGNED_PE_FILE_VERIFICATION
 	bool "Support for PE file signature verification"
 	depends on PKCS7_MESSAGE_PARSER=y
 	depends on SYSTEM_DATA_VERIFICATION
+	select CRYPTO_HASH
 	select ASN1
 	select OID_REGISTRY
 	help
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 087/293] EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (85 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 086/293] crypto: asymmetric_keys - select CRYPTO_HASH where needed Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 088/293] bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush() Greg Kroah-Hartman
                   ` (211 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, James Morse, Eiichi Tsukata,
	Tony Luck, Sasha Levin

[ Upstream commit d8655e7630dafa88bc37f101640e39c736399771 ]

Commit 9da21b1509d8 ("EDAC: Poll timeout cannot be zero, p2") assumes
edac_mc_poll_msec to be unsigned long, but the type of the variable still
remained as int. Setting edac_mc_poll_msec can trigger out-of-bounds
write.

Reproducer:

  # echo 1001 > /sys/module/edac_core/parameters/edac_mc_poll_msec

KASAN report:

  BUG: KASAN: global-out-of-bounds in edac_set_poll_msec+0x140/0x150
  Write of size 8 at addr ffffffffb91b2d00 by task bash/1996

  CPU: 1 PID: 1996 Comm: bash Not tainted 5.2.0-rc6+ #23
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-2.fc30 04/01/2014
  Call Trace:
   dump_stack+0xca/0x13e
   print_address_description.cold+0x5/0x246
   __kasan_report.cold+0x75/0x9a
   ? edac_set_poll_msec+0x140/0x150
   kasan_report+0xe/0x20
   edac_set_poll_msec+0x140/0x150
   ? dimmdev_location_show+0x30/0x30
   ? vfs_lock_file+0xe0/0xe0
   ? _raw_spin_lock+0x87/0xe0
   param_attr_store+0x1b5/0x310
   ? param_array_set+0x4f0/0x4f0
   module_attr_store+0x58/0x80
   ? module_attr_show+0x80/0x80
   sysfs_kf_write+0x13d/0x1a0
   kernfs_fop_write+0x2bc/0x460
   ? sysfs_kf_bin_read+0x270/0x270
   ? kernfs_notify+0x1f0/0x1f0
   __vfs_write+0x81/0x100
   vfs_write+0x1e1/0x560
   ksys_write+0x126/0x250
   ? __ia32_sys_read+0xb0/0xb0
   ? do_syscall_64+0x1f/0x390
   do_syscall_64+0xc1/0x390
   entry_SYSCALL_64_after_hwframe+0x49/0xbe
  RIP: 0033:0x7fa7caa5e970
  Code: 73 01 c3 48 8b 0d 28 d5 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 99 2d 2c 00 00 75 10 b8 01 00 00 00 04
  RSP: 002b:00007fff6acfdfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
  RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fa7caa5e970
  RDX: 0000000000000005 RSI: 0000000000e95c08 RDI: 0000000000000001
  RBP: 0000000000e95c08 R08: 00007fa7cad1e760 R09: 00007fa7cb36a700
  R10: 0000000000000073 R11: 0000000000000246 R12: 0000000000000005
  R13: 0000000000000001 R14: 00007fa7cad1d600 R15: 0000000000000005

  The buggy address belongs to the variable:
   edac_mc_poll_msec+0x0/0x40

  Memory state around the buggy address:
   ffffffffb91b2c00: 00 00 00 00 fa fa fa fa 00 00 00 00 fa fa fa fa
   ffffffffb91b2c80: 00 00 00 00 fa fa fa fa 00 00 00 00 fa fa fa fa
  >ffffffffb91b2d00: 04 fa fa fa fa fa fa fa 04 fa fa fa fa fa fa fa
                     ^
   ffffffffb91b2d80: 04 fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
   ffffffffb91b2e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Fix it by changing the type of edac_mc_poll_msec to unsigned int.
The reason why this patch adopts unsigned int rather than unsigned long
is msecs_to_jiffies() assumes arg to be unsigned int. We can avoid
integer conversion bugs and unsigned int will be large enough for
edac_mc_poll_msec.

Reviewed-by: James Morse <james.morse@arm.com>
Fixes: 9da21b1509d8 ("EDAC: Poll timeout cannot be zero, p2")
Signed-off-by: Eiichi Tsukata <devel@etsukata.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/edac/edac_mc_sysfs.c | 16 ++++++++--------
 drivers/edac/edac_module.h   |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 148c4649b155..a4acfa81dfe0 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -26,7 +26,7 @@
 static int edac_mc_log_ue = 1;
 static int edac_mc_log_ce = 1;
 static int edac_mc_panic_on_ue;
-static int edac_mc_poll_msec = 1000;
+static unsigned int edac_mc_poll_msec = 1000;
 
 /* Getter functions for above */
 int edac_mc_get_log_ue(void)
@@ -45,30 +45,30 @@ int edac_mc_get_panic_on_ue(void)
 }
 
 /* this is temporary */
-int edac_mc_get_poll_msec(void)
+unsigned int edac_mc_get_poll_msec(void)
 {
 	return edac_mc_poll_msec;
 }
 
 static int edac_set_poll_msec(const char *val, struct kernel_param *kp)
 {
-	unsigned long l;
+	unsigned int i;
 	int ret;
 
 	if (!val)
 		return -EINVAL;
 
-	ret = kstrtoul(val, 0, &l);
+	ret = kstrtouint(val, 0, &i);
 	if (ret)
 		return ret;
 
-	if (l < 1000)
+	if (i < 1000)
 		return -EINVAL;
 
-	*((unsigned long *)kp->arg) = l;
+	*((unsigned int *)kp->arg) = i;
 
 	/* notify edac_mc engine to reset the poll period */
-	edac_mc_reset_delay_period(l);
+	edac_mc_reset_delay_period(i);
 
 	return 0;
 }
@@ -82,7 +82,7 @@ MODULE_PARM_DESC(edac_mc_log_ue,
 module_param(edac_mc_log_ce, int, 0644);
 MODULE_PARM_DESC(edac_mc_log_ce,
 		 "Log correctable error to console: 0=off 1=on");
-module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_int,
+module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_uint,
 		  &edac_mc_poll_msec, 0644);
 MODULE_PARM_DESC(edac_mc_poll_msec, "Polling period in milliseconds");
 
diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h
index dec88dcea036..c9f0e73872a6 100644
--- a/drivers/edac/edac_module.h
+++ b/drivers/edac/edac_module.h
@@ -36,7 +36,7 @@ extern int edac_mc_get_log_ue(void);
 extern int edac_mc_get_log_ce(void);
 extern int edac_mc_get_panic_on_ue(void);
 extern int edac_get_poll_msec(void);
-extern int edac_mc_get_poll_msec(void);
+extern unsigned int edac_mc_get_poll_msec(void);
 
 unsigned edac_dimm_info_location(struct dimm_info *dimm, char *buf,
 				 unsigned len);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 088/293] bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (86 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 087/293] EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 089/293] net: hns3: fix a -Wformat-nonliteral compile warning Greg Kroah-Hartman
                   ` (210 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Coly Li, Jens Axboe, Sasha Levin

[ Upstream commit b387e9b58679c60f5b1e4313939bd4878204fc37 ]

When system memory is in heavy pressure, bch_gc_thread_start() from
run_cache_set() may fail due to out of memory. In such condition,
c->gc_thread is assigned to -ENOMEM, not NULL pointer. Then in following
failure code path bch_cache_set_error(), when cache_set_flush() gets
called, the code piece to stop c->gc_thread is broken,
         if (!IS_ERR_OR_NULL(c->gc_thread))
                 kthread_stop(c->gc_thread);

And KASAN catches such NULL pointer deference problem, with the warning
information:

[  561.207881] ==================================================================
[  561.207900] BUG: KASAN: null-ptr-deref in kthread_stop+0x3b/0x440
[  561.207904] Write of size 4 at addr 000000000000001c by task kworker/15:1/313

[  561.207913] CPU: 15 PID: 313 Comm: kworker/15:1 Tainted: G        W         5.0.0-vanilla+ #3
[  561.207916] Hardware name: Lenovo ThinkSystem SR650 -[7X05CTO1WW]-/-[7X05CTO1WW]-, BIOS -[IVE136T-2.10]- 03/22/2019
[  561.207935] Workqueue: events cache_set_flush [bcache]
[  561.207940] Call Trace:
[  561.207948]  dump_stack+0x9a/0xeb
[  561.207955]  ? kthread_stop+0x3b/0x440
[  561.207960]  ? kthread_stop+0x3b/0x440
[  561.207965]  kasan_report+0x176/0x192
[  561.207973]  ? kthread_stop+0x3b/0x440
[  561.207981]  kthread_stop+0x3b/0x440
[  561.207995]  cache_set_flush+0xd4/0x6d0 [bcache]
[  561.208008]  process_one_work+0x856/0x1620
[  561.208015]  ? find_held_lock+0x39/0x1d0
[  561.208028]  ? drain_workqueue+0x380/0x380
[  561.208048]  worker_thread+0x87/0xb80
[  561.208058]  ? __kthread_parkme+0xb6/0x180
[  561.208067]  ? process_one_work+0x1620/0x1620
[  561.208072]  kthread+0x326/0x3e0
[  561.208079]  ? kthread_create_worker_on_cpu+0xc0/0xc0
[  561.208090]  ret_from_fork+0x3a/0x50
[  561.208110] ==================================================================
[  561.208113] Disabling lock debugging due to kernel taint
[  561.208115] irq event stamp: 11800231
[  561.208126] hardirqs last  enabled at (11800231): [<ffffffff83008538>] do_syscall_64+0x18/0x410
[  561.208127] BUG: unable to handle kernel NULL pointer dereference at 000000000000001c
[  561.208129] #PF error: [WRITE]
[  561.312253] hardirqs last disabled at (11800230): [<ffffffff830052ff>] trace_hardirqs_off_thunk+0x1a/0x1c
[  561.312259] softirqs last  enabled at (11799832): [<ffffffff850005c7>] __do_softirq+0x5c7/0x8c3
[  561.405975] PGD 0 P4D 0
[  561.442494] softirqs last disabled at (11799821): [<ffffffff831add2c>] irq_exit+0x1ac/0x1e0
[  561.791359] Oops: 0002 [#1] SMP KASAN NOPTI
[  561.791362] CPU: 15 PID: 313 Comm: kworker/15:1 Tainted: G    B   W         5.0.0-vanilla+ #3
[  561.791363] Hardware name: Lenovo ThinkSystem SR650 -[7X05CTO1WW]-/-[7X05CTO1WW]-, BIOS -[IVE136T-2.10]- 03/22/2019
[  561.791371] Workqueue: events cache_set_flush [bcache]
[  561.791374] RIP: 0010:kthread_stop+0x3b/0x440
[  561.791376] Code: 00 00 65 8b 05 26 d5 e0 7c 89 c0 48 0f a3 05 ec aa df 02 0f 82 dc 02 00 00 4c 8d 63 20 be 04 00 00 00 4c 89 e7 e8 65 c5 53 00 <f0> ff 43 20 48 8d 7b 24 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48
[  561.791377] RSP: 0018:ffff88872fc8fd10 EFLAGS: 00010286
[  561.838895] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  561.838916] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  561.838934] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  561.838948] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  561.838966] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  561.838979] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  561.838996] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  563.067028] RAX: 0000000000000000 RBX: fffffffffffffffc RCX: ffffffff832dd314
[  563.067030] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000297
[  563.067032] RBP: ffff88872fc8fe88 R08: fffffbfff0b8213d R09: fffffbfff0b8213d
[  563.067034] R10: 0000000000000001 R11: fffffbfff0b8213c R12: 000000000000001c
[  563.408618] R13: ffff88dc61cc0f68 R14: ffff888102b94900 R15: ffff88dc61cc0f68
[  563.408620] FS:  0000000000000000(0000) GS:ffff888f7dc00000(0000) knlGS:0000000000000000
[  563.408622] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  563.408623] CR2: 000000000000001c CR3: 0000000f48a1a004 CR4: 00000000007606e0
[  563.408625] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  563.408627] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  563.904795] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  563.915796] PKRU: 55555554
[  563.915797] Call Trace:
[  563.915807]  cache_set_flush+0xd4/0x6d0 [bcache]
[  563.915812]  process_one_work+0x856/0x1620
[  564.001226] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  564.033563]  ? find_held_lock+0x39/0x1d0
[  564.033567]  ? drain_workqueue+0x380/0x380
[  564.033574]  worker_thread+0x87/0xb80
[  564.062823] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  564.118042]  ? __kthread_parkme+0xb6/0x180
[  564.118046]  ? process_one_work+0x1620/0x1620
[  564.118048]  kthread+0x326/0x3e0
[  564.118050]  ? kthread_create_worker_on_cpu+0xc0/0xc0
[  564.167066] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  564.252441]  ret_from_fork+0x3a/0x50
[  564.252447] Modules linked in: msr rpcrdma sunrpc rdma_ucm ib_iser ib_umad rdma_cm ib_ipoib i40iw configfs iw_cm ib_cm libiscsi scsi_transport_iscsi mlx4_ib ib_uverbs mlx4_en ib_core nls_iso8859_1 nls_cp437 vfat fat intel_rapl skx_edac x86_pkg_temp_thermal coretemp iTCO_wdt iTCO_vendor_support crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ses raid0 aesni_intel cdc_ether enclosure usbnet ipmi_ssif joydev aes_x86_64 i40e scsi_transport_sas mii bcache md_mod crypto_simd mei_me ioatdma crc64 ptp cryptd pcspkr i2c_i801 mlx4_core glue_helper pps_core mei lpc_ich dca wmi ipmi_si ipmi_devintf nd_pmem dax_pmem nd_btt ipmi_msghandler device_dax pcc_cpufreq button hid_generic usbhid mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect xhci_pci sysimgblt fb_sys_fops xhci_hcd ttm megaraid_sas drm usbcore nfit libnvdimm sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[  564.299390] bcache: bch_count_io_errors() nvme0n1: IO error on writing btree.
[  564.348360] CR2: 000000000000001c
[  564.348362] ---[ end trace b7f0e5cc7b2103b0 ]---

Therefore, it is not enough to only check whether c->gc_thread is NULL,
we should use IS_ERR_OR_NULL() to check both NULL pointer and error
value.

This patch changes the above buggy code piece in this way,
         if (!IS_ERR_OR_NULL(c->gc_thread))
                 kthread_stop(c->gc_thread);

Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/bcache/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 85a5afe01d39..1a270e2262f5 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1402,7 +1402,7 @@ static void cache_set_flush(struct closure *cl)
 	kobject_put(&c->internal);
 	kobject_del(&c->kobj);
 
-	if (c->gc_thread)
+	if (!IS_ERR_OR_NULL(c->gc_thread))
 		kthread_stop(c->gc_thread);
 
 	if (!IS_ERR_OR_NULL(c->root))
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 089/293] net: hns3: fix a -Wformat-nonliteral compile warning
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (87 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 088/293] bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 090/293] net: hns3: add some error checking in hclge_tm module Greg Kroah-Hartman
                   ` (209 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Yonglong Liu, Peng Li, Huazhong Tan,
	David S. Miller, Sasha Levin

[ Upstream commit 18d219b783da61a6cc77581f55fc4af2fa16bc36 ]

When setting -Wformat=2, there is a compiler warning like this:

hclge_main.c:xxx:x: warning: format not a string literal and no
format arguments [-Wformat-nonliteral]
strs[i].desc);
^~~~

This patch adds missing format parameter "%s" to snprintf() to
fix it.

Fixes: 46a3df9f9718 ("Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 654aad6e748b..86523e8993cb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -619,8 +619,7 @@ static u8 *hclge_comm_get_strings(u32 stringset,
 		return buff;
 
 	for (i = 0; i < size; i++) {
-		snprintf(buff, ETH_GSTRING_LEN,
-			 strs[i].desc);
+		snprintf(buff, ETH_GSTRING_LEN, "%s", strs[i].desc);
 		buff = buff + ETH_GSTRING_LEN;
 	}
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 090/293] net: hns3: add some error checking in hclge_tm module
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (88 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 089/293] net: hns3: fix a -Wformat-nonliteral compile warning Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 091/293] ath10k: destroy sdio workqueue while remove sdio module Greg Kroah-Hartman
                   ` (208 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Yunsheng Lin, Peng Li, Huazhong Tan,
	David S. Miller, Sasha Levin

[ Upstream commit 04f25edb48c441fc278ecc154c270f16966cbb90 ]

When hdev->tx_sch_mode is HCLGE_FLAG_VNET_BASE_SCH_MODE, the
hclge_tm_schd_mode_vnet_base_cfg calls hclge_tm_pri_schd_mode_cfg
with vport->vport_id as pri_id, which is used as index for
hdev->tm_info.tc_info, it will cause out of bound access issue
if vport_id is equal to or larger than HNAE3_MAX_TC.

Also hardware only support maximum speed of HCLGE_ETHER_MAX_RATE.

So this patch adds two checks for above cases.

Fixes: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 73a75d7cc551..55228b91d80b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -57,7 +57,8 @@ static int hclge_shaper_para_calc(u32 ir, u8 shaper_level,
 	u32 tick;
 
 	/* Calc tick */
-	if (shaper_level >= HCLGE_SHAPER_LVL_CNT)
+	if (shaper_level >= HCLGE_SHAPER_LVL_CNT ||
+	    ir > HCLGE_ETHER_MAX_RATE)
 		return -EINVAL;
 
 	tick = tick_array[shaper_level];
@@ -893,6 +894,9 @@ static int hclge_tm_schd_mode_vnet_base_cfg(struct hclge_vport *vport)
 	int ret;
 	u8 i;
 
+	if (vport->vport_id >= HNAE3_MAX_TC)
+		return -EINVAL;
+
 	ret = hclge_tm_pri_schd_mode_cfg(hdev, vport->vport_id);
 	if (ret)
 		return ret;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 091/293] ath10k: destroy sdio workqueue while remove sdio module
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (89 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 090/293] net: hns3: add some error checking in hclge_tm module Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 092/293] iwlwifi: mvm: Drop large non sta frames Greg Kroah-Hartman
                   ` (207 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Wen Gong, Kalle Valo, Sasha Levin

[ Upstream commit 3ed39f8e747a7aafeec07bb244f2c3a1bdca5730 ]

The workqueue need to flush and destory while remove sdio module,
otherwise it will have thread which is not destory after remove
sdio modules.

Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00007-QCARMSWP-1.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/sdio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index c6440d28ab48..0a1248ebccf5 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -2076,6 +2076,9 @@ static void ath10k_sdio_remove(struct sdio_func *func)
 	cancel_work_sync(&ar_sdio->wr_async_work);
 	ath10k_core_unregister(ar);
 	ath10k_core_destroy(ar);
+
+	flush_workqueue(ar_sdio->workqueue);
+	destroy_workqueue(ar_sdio->workqueue);
 }
 
 static const struct sdio_device_id ath10k_sdio_devices[] = {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 092/293] iwlwifi: mvm: Drop large non sta frames
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (90 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 091/293] ath10k: destroy sdio workqueue while remove sdio module Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 093/293] perf stat: Make metric event lookup more robust Greg Kroah-Hartman
                   ` (206 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andrei Otcheretianski, Luca Coelho,
	Sasha Levin

[ Upstream commit ac70499ee97231a418dc1a4d6c9dc102e8f64631 ]

In some buggy scenarios we could possible attempt to transmit frames larger
than maximum MSDU size. Since our devices don't know how to handle this,
it may result in asserts, hangs etc.
This can happen, for example, when we receive a large multicast frame
and try to transmit it back to the air in AP mode.
Since in a legal scenario this should never happen, drop such frames and
warn about it.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 62a6e293cf12..f0f2be432d20 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -621,6 +621,9 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
 
 	memcpy(&info, skb->cb, sizeof(info));
 
+	if (WARN_ON_ONCE(skb->len > IEEE80211_MAX_DATA_LEN + hdrlen))
+		return -1;
+
 	if (WARN_ON_ONCE(info.flags & IEEE80211_TX_CTL_AMPDU))
 		return -1;
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 093/293] perf stat: Make metric event lookup more robust
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (91 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 092/293] iwlwifi: mvm: Drop large non sta frames Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 094/293] net: usb: asix: init MAC address buffers Greg Kroah-Hartman
                   ` (205 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andi Kleen, Jiri Olsa, Kan Liang,
	Arnaldo Carvalho de Melo, Sasha Levin

[ Upstream commit 145c407c808352acd625be793396fd4f33c794f8 ]

After setting up metric groups through the event parser, the metricgroup
code looks them up again in the event list.

Make sure we only look up events that haven't been used by some other
metric. The data structures currently cannot handle more than one metric
per event. This avoids problems with multiple events partially
overlapping.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: http://lkml.kernel.org/r/20190624193711.35241-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/stat-shadow.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 37363869c9a1..eadc9a2aef16 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -271,7 +271,7 @@ static struct perf_evsel *perf_stat__find_event(struct perf_evlist *evsel_list,
 	struct perf_evsel *c2;
 
 	evlist__for_each_entry (evsel_list, c2) {
-		if (!strcasecmp(c2->name, name))
+		if (!strcasecmp(c2->name, name) && !c2->collect_stat)
 			return c2;
 	}
 	return NULL;
@@ -310,7 +310,8 @@ void perf_stat__collect_metric_expr(struct perf_evlist *evsel_list)
 			if (leader) {
 				/* Search in group */
 				for_each_group_member (oc, leader) {
-					if (!strcasecmp(oc->name, metric_names[i])) {
+					if (!strcasecmp(oc->name, metric_names[i]) &&
+						!oc->collect_stat) {
 						found = true;
 						break;
 					}
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 094/293] net: usb: asix: init MAC address buffers
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (92 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 093/293] perf stat: Make metric event lookup more robust Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 095/293] gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants Greg Kroah-Hartman
                   ` (204 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+8a3fc6674bbc3978ed4e,
	Phong Tran, David S. Miller, Sasha Levin

[ Upstream commit 78226f6eaac80bf30256a33a4926c194ceefdf36 ]

This is for fixing bug KMSAN: uninit-value in ax88772_bind

Tested by
https://groups.google.com/d/msg/syzkaller-bugs/aFQurGotng4/eB_HlNhhCwAJ

Reported-by: syzbot+8a3fc6674bbc3978ed4e@syzkaller.appspotmail.com

syzbot found the following crash on:

HEAD commit:    f75e4cfe kmsan: use kmsan_handle_urb() in urb.c
git tree:       kmsan
console output: https://syzkaller.appspot.com/x/log.txt?x=136d720ea00000
kernel config:
https://syzkaller.appspot.com/x/.config?x=602468164ccdc30a
dashboard link:
https://syzkaller.appspot.com/bug?extid=8a3fc6674bbc3978ed4e
compiler:       clang version 9.0.0 (/home/glider/llvm/clang
06d00afa61eef8f7f501ebdb4e8612ea43ec2d78)
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=12788316a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=120359aaa00000

==================================================================
BUG: KMSAN: uninit-value in is_valid_ether_addr
include/linux/etherdevice.h:200 [inline]
BUG: KMSAN: uninit-value in asix_set_netdev_dev_addr
drivers/net/usb/asix_devices.c:73 [inline]
BUG: KMSAN: uninit-value in ax88772_bind+0x93d/0x11e0
drivers/net/usb/asix_devices.c:724
CPU: 0 PID: 3348 Comm: kworker/0:2 Not tainted 5.1.0+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x191/0x1f0 lib/dump_stack.c:113
  kmsan_report+0x130/0x2a0 mm/kmsan/kmsan.c:622
  __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:310
  is_valid_ether_addr include/linux/etherdevice.h:200 [inline]
  asix_set_netdev_dev_addr drivers/net/usb/asix_devices.c:73 [inline]
  ax88772_bind+0x93d/0x11e0 drivers/net/usb/asix_devices.c:724
  usbnet_probe+0x10f5/0x3940 drivers/net/usb/usbnet.c:1728
  usb_probe_interface+0xd66/0x1320 drivers/usb/core/driver.c:361
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_set_configuration+0x30dc/0x3750 drivers/usb/core/message.c:2027
  generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210
  usb_probe_device+0x14c/0x200 drivers/usb/core/driver.c:266
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_new_device+0x23e5/0x2ff0 drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x48d1/0x7290 drivers/usb/core/hub.c:5432
  process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269
  process_scheduled_works kernel/workqueue.c:2331 [inline]
  worker_thread+0x189c/0x2460 kernel/workqueue.c:2417
  kthread+0x4b5/0x4f0 kernel/kthread.c:254
  ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/asix_devices.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index d0c0ac0c3519..9b751d4bd327 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -238,7 +238,7 @@ static void asix_phy_reset(struct usbnet *dev, unsigned int reset_bits)
 static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret = 0;
-	u8 buf[ETH_ALEN];
+	u8 buf[ETH_ALEN] = {0};
 	int i;
 	unsigned long gpio_bits = dev->driver_info->data;
 
@@ -689,7 +689,7 @@ static int asix_resume(struct usb_interface *intf)
 static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret, i;
-	u8 buf[ETH_ALEN], chipcode = 0;
+	u8 buf[ETH_ALEN] = {0}, chipcode = 0;
 	u32 phyid;
 	struct asix_common_private *priv;
 
@@ -1065,7 +1065,7 @@ static const struct net_device_ops ax88178_netdev_ops = {
 static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret;
-	u8 buf[ETH_ALEN];
+	u8 buf[ETH_ALEN] = {0};
 
 	usbnet_get_endpoints(dev,intf);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 095/293] gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (93 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 094/293] net: usb: asix: init MAC address buffers Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 096/293] Bluetooth: hci_bcsp: Fix memory leak in rx_skb Greg Kroah-Hartman
                   ` (203 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Geert Uytterhoeven, Linus Walleij,
	Sasha Levin

[ Upstream commit 3285170f28a850638794cdfe712eb6d93e51e706 ]

Commit 372e722ea4dd4ca1 ("gpiolib: use descriptors internally") renamed
the functions to use a "gpiod" prefix, and commit 79a9becda8940deb
("gpiolib: export descriptor-based GPIO interface") introduced the "raw"
variants, but both changes forgot to update the comments.

Readd a similar reference to gpiod_set_value(), which was accidentally
removed by commit 1e77fc82110ac36f ("gpio: Add missing open drain/source
handling to gpiod_set_value_cansleep()").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20190701142738.25219-1-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpiolib.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 21062cb6b85f..3db0a9b0d259 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2480,7 +2480,7 @@ static int _gpiod_get_raw_value(const struct gpio_desc *desc)
 int gpiod_get_raw_value(const struct gpio_desc *desc)
 {
 	VALIDATE_DESC(desc);
-	/* Should be using gpio_get_value_cansleep() */
+	/* Should be using gpiod_get_raw_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 	return _gpiod_get_raw_value(desc);
 }
@@ -2501,7 +2501,7 @@ int gpiod_get_value(const struct gpio_desc *desc)
 	int value;
 
 	VALIDATE_DESC(desc);
-	/* Should be using gpio_get_value_cansleep() */
+	/* Should be using gpiod_get_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 
 	value = _gpiod_get_raw_value(desc);
@@ -2670,7 +2670,7 @@ void gpiod_set_array_value_complex(bool raw, bool can_sleep,
 void gpiod_set_raw_value(struct gpio_desc *desc, int value)
 {
 	VALIDATE_DESC_VOID(desc);
-	/* Should be using gpiod_set_value_cansleep() */
+	/* Should be using gpiod_set_raw_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 	_gpiod_set_raw_value(desc, value);
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 096/293] Bluetooth: hci_bcsp: Fix memory leak in rx_skb
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (94 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 095/293] gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 097/293] Bluetooth: 6lowpan: search for destination address in all peers Greg Kroah-Hartman
                   ` (202 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Tomas Bortoli,
	syzbot+98162c885993b72f19c4, Marcel Holtmann, Sasha Levin

[ Upstream commit 4ce9146e0370fcd573f0372d9b4e5a211112567c ]

Syzkaller found that it is possible to provoke a memory leak by
never freeing rx_skb in struct bcsp_struct.

Fix by freeing in bcsp_close()

Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+98162c885993b72f19c4@syzkaller.appspotmail.com
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/hci_bcsp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index d880f4e33c75..57a7f4255ac0 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -757,6 +757,11 @@ static int bcsp_close(struct hci_uart *hu)
 	skb_queue_purge(&bcsp->rel);
 	skb_queue_purge(&bcsp->unrel);
 
+	if (bcsp->rx_skb) {
+		kfree_skb(bcsp->rx_skb);
+		bcsp->rx_skb = NULL;
+	}
+
 	kfree(bcsp);
 	return 0;
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 097/293] Bluetooth: 6lowpan: search for destination address in all peers
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (95 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 096/293] Bluetooth: hci_bcsp: Fix memory leak in rx_skb Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 098/293] Bluetooth: Check state in l2cap_disconnect_rsp Greg Kroah-Hartman
                   ` (201 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jukka Rissanen, Michael Scott,
	Josua Mayer, Marcel Holtmann, Sasha Levin

[ Upstream commit b188b03270b7f8568fc714101ce82fbf5e811c5a ]

Handle overlooked case where the target address is assigned to a peer
and neither route nor gateway exist.

For one peer, no checks are performed to see if it is meant to receive
packets for a given address.

As soon as there is a second peer however, checks are performed
to deal with routes and gateways for handling complex setups with
multiple hops to a target address.
This logic assumed that no route and no gateway imply that the
destination address can not be reached, which is false in case of a
direct peer.

Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Tested-by: Michael Scott <mike@foundries.io>
Signed-off-by: Josua Mayer <josua.mayer@jm0.eu>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/6lowpan.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index 4e2576fc0c59..357475cceec6 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -187,10 +187,16 @@ static inline struct lowpan_peer *peer_lookup_dst(struct lowpan_btle_dev *dev,
 	}
 
 	if (!rt) {
-		nexthop = &lowpan_cb(skb)->gw;
-
-		if (ipv6_addr_any(nexthop))
-			return NULL;
+		if (ipv6_addr_any(&lowpan_cb(skb)->gw)) {
+			/* There is neither route nor gateway,
+			 * probably the destination is a direct peer.
+			 */
+			nexthop = daddr;
+		} else {
+			/* There is a known gateway
+			 */
+			nexthop = &lowpan_cb(skb)->gw;
+		}
 	} else {
 		nexthop = rt6_nexthop(rt, daddr);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 098/293] Bluetooth: Check state in l2cap_disconnect_rsp
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (96 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 097/293] Bluetooth: 6lowpan: search for destination address in all peers Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 099/293] gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable() Greg Kroah-Hartman
                   ` (200 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Matti Kamunen, Ari Timonen,
	Matias Karhumaa, Marcel Holtmann, Sasha Levin

[ Upstream commit 28261da8a26f4915aa257d12d506c6ba179d961f ]

Because of both sides doing L2CAP disconnection at the same time, it
was possible to receive L2CAP Disconnection Response with CID that was
already freed. That caused problems if CID was already reused and L2CAP
Connection Request with same CID was sent out. Before this patch kernel
deleted channel context regardless of the state of the channel.

Example where leftover Disconnection Response (frame #402) causes local
device to delete L2CAP channel which was not yet connected. This in
turn confuses remote device's stack because same CID is re-used without
properly disconnecting.

Btmon capture before patch:
** snip **
> ACL Data RX: Handle 43 flags 0x02 dlen 8                #394 [hci1] 10.748949
      Channel: 65 len 4 [PSM 3 mode 0] {chan 2}
      RFCOMM: Disconnect (DISC) (0x43)
         Address: 0x03 cr 1 dlci 0x00
         Control: 0x53 poll/final 1
         Length: 0
         FCS: 0xfd
< ACL Data TX: Handle 43 flags 0x00 dlen 8                #395 [hci1] 10.749062
      Channel: 65 len 4 [PSM 3 mode 0] {chan 2}
      RFCOMM: Unnumbered Ack (UA) (0x63)
         Address: 0x03 cr 1 dlci 0x00
         Control: 0x73 poll/final 1
         Length: 0
         FCS: 0xd7
< ACL Data TX: Handle 43 flags 0x00 dlen 12               #396 [hci1] 10.749073
      L2CAP: Disconnection Request (0x06) ident 17 len 4
        Destination CID: 65
        Source CID: 65
> HCI Event: Number of Completed Packets (0x13) plen 5    #397 [hci1] 10.752391
        Num handles: 1
        Handle: 43
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5    #398 [hci1] 10.753394
        Num handles: 1
        Handle: 43
        Count: 1
> ACL Data RX: Handle 43 flags 0x02 dlen 12               #399 [hci1] 10.756499
      L2CAP: Disconnection Request (0x06) ident 26 len 4
        Destination CID: 65
        Source CID: 65
< ACL Data TX: Handle 43 flags 0x00 dlen 12               #400 [hci1] 10.756548
      L2CAP: Disconnection Response (0x07) ident 26 len 4
        Destination CID: 65
        Source CID: 65
< ACL Data TX: Handle 43 flags 0x00 dlen 12               #401 [hci1] 10.757459
      L2CAP: Connection Request (0x02) ident 18 len 4
        PSM: 1 (0x0001)
        Source CID: 65
> ACL Data RX: Handle 43 flags 0x02 dlen 12               #402 [hci1] 10.759148
      L2CAP: Disconnection Response (0x07) ident 17 len 4
        Destination CID: 65
        Source CID: 65
= bluetoothd: 00:1E:AB:4C:56:54: error updating services: Input/o..   10.759447
> HCI Event: Number of Completed Packets (0x13) plen 5    #403 [hci1] 10.759386
        Num handles: 1
        Handle: 43
        Count: 1
> ACL Data RX: Handle 43 flags 0x02 dlen 12               #404 [hci1] 10.760397
      L2CAP: Connection Request (0x02) ident 27 len 4
        PSM: 3 (0x0003)
        Source CID: 65
< ACL Data TX: Handle 43 flags 0x00 dlen 16               #405 [hci1] 10.760441
      L2CAP: Connection Response (0x03) ident 27 len 8
        Destination CID: 65
        Source CID: 65
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 43 flags 0x00 dlen 27               #406 [hci1] 10.760449
      L2CAP: Configure Request (0x04) ident 19 len 19
        Destination CID: 65
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 1013
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5    #407 [hci1] 10.761399
        Num handles: 1
        Handle: 43
        Count: 1
> ACL Data RX: Handle 43 flags 0x02 dlen 16               #408 [hci1] 10.762942
      L2CAP: Connection Response (0x03) ident 18 len 8
        Destination CID: 66
        Source CID: 65
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
*snip*

Similar case after the patch:
*snip*
> ACL Data RX: Handle 43 flags 0x02 dlen 8            #22702 [hci0] 1664.411056
      Channel: 65 len 4 [PSM 3 mode 0] {chan 3}
      RFCOMM: Disconnect (DISC) (0x43)
         Address: 0x03 cr 1 dlci 0x00
         Control: 0x53 poll/final 1
         Length: 0
         FCS: 0xfd
< ACL Data TX: Handle 43 flags 0x00 dlen 8            #22703 [hci0] 1664.411136
      Channel: 65 len 4 [PSM 3 mode 0] {chan 3}
      RFCOMM: Unnumbered Ack (UA) (0x63)
         Address: 0x03 cr 1 dlci 0x00
         Control: 0x73 poll/final 1
         Length: 0
         FCS: 0xd7
< ACL Data TX: Handle 43 flags 0x00 dlen 12           #22704 [hci0] 1664.411143
      L2CAP: Disconnection Request (0x06) ident 11 len 4
        Destination CID: 65
        Source CID: 65
> HCI Event: Number of Completed Pac.. (0x13) plen 5  #22705 [hci0] 1664.414009
        Num handles: 1
        Handle: 43
        Count: 1
> HCI Event: Number of Completed Pac.. (0x13) plen 5  #22706 [hci0] 1664.415007
        Num handles: 1
        Handle: 43
        Count: 1
> ACL Data RX: Handle 43 flags 0x02 dlen 12           #22707 [hci0] 1664.418674
      L2CAP: Disconnection Request (0x06) ident 17 len 4
        Destination CID: 65
        Source CID: 65
< ACL Data TX: Handle 43 flags 0x00 dlen 12           #22708 [hci0] 1664.418762
      L2CAP: Disconnection Response (0x07) ident 17 len 4
        Destination CID: 65
        Source CID: 65
< ACL Data TX: Handle 43 flags 0x00 dlen 12           #22709 [hci0] 1664.421073
      L2CAP: Connection Request (0x02) ident 12 len 4
        PSM: 1 (0x0001)
        Source CID: 65
> ACL Data RX: Handle 43 flags 0x02 dlen 12           #22710 [hci0] 1664.421371
      L2CAP: Disconnection Response (0x07) ident 11 len 4
        Destination CID: 65
        Source CID: 65
> HCI Event: Number of Completed Pac.. (0x13) plen 5  #22711 [hci0] 1664.424082
        Num handles: 1
        Handle: 43
        Count: 1
> HCI Event: Number of Completed Pac.. (0x13) plen 5  #22712 [hci0] 1664.425040
        Num handles: 1
        Handle: 43
        Count: 1
> ACL Data RX: Handle 43 flags 0x02 dlen 12           #22713 [hci0] 1664.426103
      L2CAP: Connection Request (0x02) ident 18 len 4
        PSM: 3 (0x0003)
        Source CID: 65
< ACL Data TX: Handle 43 flags 0x00 dlen 16           #22714 [hci0] 1664.426186
      L2CAP: Connection Response (0x03) ident 18 len 8
        Destination CID: 66
        Source CID: 65
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 43 flags 0x00 dlen 27           #22715 [hci0] 1664.426196
      L2CAP: Configure Request (0x04) ident 13 len 19
        Destination CID: 65
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 1013
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> ACL Data RX: Handle 43 flags 0x02 dlen 16           #22716 [hci0] 1664.428804
      L2CAP: Connection Response (0x03) ident 12 len 8
        Destination CID: 66
        Source CID: 65
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
*snip*

Fix is to check that channel is in state BT_DISCONN before deleting the
channel.

This bug was found while fuzzing Bluez's OBEX implementation using
Synopsys Defensics.

Reported-by: Matti Kamunen <matti.kamunen@synopsys.com>
Reported-by: Ari Timonen <ari.timonen@synopsys.com>
Signed-off-by: Matias Karhumaa <matias.karhumaa@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/l2cap_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0ee64f67300a..0c2219f483d7 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4384,6 +4384,12 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn,
 
 	l2cap_chan_lock(chan);
 
+	if (chan->state != BT_DISCONN) {
+		l2cap_chan_unlock(chan);
+		mutex_unlock(&conn->chan_lock);
+		return 0;
+	}
+
 	l2cap_chan_hold(chan);
 	l2cap_chan_del(chan, 0);
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 099/293] gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (97 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 098/293] Bluetooth: Check state in l2cap_disconnect_rsp Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 100/293] Bluetooth: validate BLE connection interval updates Greg Kroah-Hartman
                   ` (199 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Taehee Yoo, David S. Miller, Sasha Levin

[ Upstream commit e30155fd23c9c141cbe7d99b786e10a83a328837 ]

If an invalid role is sent from user space, gtp_encap_enable() will fail.
Then, it should call gtp_encap_disable_sock() but current code doesn't.
It makes memory leak.

Fixes: 91ed81f9abc7 ("gtp: support SGSN-side tunnels")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index f38e32a7ec9c..dba3869b61be 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -845,8 +845,13 @@ static int gtp_encap_enable(struct gtp_dev *gtp, struct nlattr *data[])
 
 	if (data[IFLA_GTP_ROLE]) {
 		role = nla_get_u32(data[IFLA_GTP_ROLE]);
-		if (role > GTP_ROLE_SGSN)
+		if (role > GTP_ROLE_SGSN) {
+			if (sk0)
+				gtp_encap_disable_sock(sk0);
+			if (sk1u)
+				gtp_encap_disable_sock(sk1u);
 			return -EINVAL;
+		}
 	}
 
 	gtp->sk0 = sk0;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 100/293] Bluetooth: validate BLE connection interval updates
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (98 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 099/293] gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 101/293] gtp: fix suspicious RCU usage Greg Kroah-Hartman
                   ` (198 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Carey Sonsino, Marcel Holtmann, Sasha Levin

[ Upstream commit c49a8682fc5d298d44e8d911f4fa14690ea9485e ]

Problem: The Linux Bluetooth stack yields complete control over the BLE
connection interval to the remote device.

The Linux Bluetooth stack provides access to the BLE connection interval
min and max values through /sys/kernel/debug/bluetooth/hci0/
conn_min_interval and /sys/kernel/debug/bluetooth/hci0/conn_max_interval.
These values are used for initial BLE connections, but the remote device
has the ability to request a connection parameter update. In the event
that the remote side requests to change the connection interval, the Linux
kernel currently only validates that the desired value is within the
acceptable range in the Bluetooth specification (6 - 3200, corresponding to
7.5ms - 4000ms). There is currently no validation that the desired value
requested by the remote device is within the min/max limits specified in
the conn_min_interval/conn_max_interval configurations. This essentially
leads to Linux yielding complete control over the connection interval to
the remote device.

The proposed patch adds a verification step to the connection parameter
update mechanism, ensuring that the desired value is within the min/max
bounds of the current connection. If the desired value is outside of the
current connection min/max values, then the connection parameter update
request is rejected and the negative response is returned to the remote
device. Recall that the initial connection is established using the local
conn_min_interval/conn_max_interval values, so this allows the Linux
administrator to retain control over the BLE connection interval.

The one downside that I see is that the current default Linux values for
conn_min_interval and conn_max_interval typically correspond to 30ms and
50ms respectively. If this change were accepted, then it is feasible that
some devices would no longer be able to negotiate to their desired
connection interval values. This might be remedied by setting the default
Linux conn_min_interval and conn_max_interval values to the widest
supported range (6 - 3200 / 7.5ms - 4000ms). This could lead to the same
behavior as the current implementation, where the remote device could
request to change the connection interval value to any value that is
permitted by the Bluetooth specification, and Linux would accept the
desired value.

Signed-off-by: Carey Sonsino <csonsino@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_event.c  | 5 +++++
 net/bluetooth/l2cap_core.c | 9 ++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 363dc85bbc5c..3d2f64a6d623 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5089,6 +5089,11 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_UNKNOWN_CONN_ID);
 
+	if (min < hcon->le_conn_min_interval ||
+	    max > hcon->le_conn_max_interval)
+		return send_conn_param_neg_reply(hdev, handle,
+						 HCI_ERROR_INVALID_LL_PARAMS);
+
 	if (hci_check_conn_params(min, max, latency, timeout))
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_INVALID_LL_PARAMS);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0c2219f483d7..4dc1db85a9c2 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5287,7 +5287,14 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 
 	memset(&rsp, 0, sizeof(rsp));
 
-	err = hci_check_conn_params(min, max, latency, to_multiplier);
+	if (min < hcon->le_conn_min_interval ||
+	    max > hcon->le_conn_max_interval) {
+		BT_DBG("requested connection interval exceeds current bounds.");
+		err = -EINVAL;
+	} else {
+		err = hci_check_conn_params(min, max, latency, to_multiplier);
+	}
+
 	if (err)
 		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
 	else
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 101/293] gtp: fix suspicious RCU usage
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (99 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 100/293] Bluetooth: validate BLE connection interval updates Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 102/293] gtp: fix Illegal context switch in RCU read-side critical section Greg Kroah-Hartman
                   ` (197 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Taehee Yoo, David S. Miller, Sasha Levin

[ Upstream commit e198987e7dd7d3645a53875151cd6f8fc425b706 ]

gtp_encap_enable_socket() and gtp_encap_destroy() are not protected
by rcu_read_lock(). and it's not safe to write sk->sk_user_data.
This patch make these functions to use lock_sock() instead of
rcu_dereference_sk_user_data().

Test commands:
    gtp-link add gtp1

Splat looks like:
[   83.238315] =============================
[   83.239127] WARNING: suspicious RCU usage
[   83.239702] 5.2.0-rc6+ #49 Not tainted
[   83.240268] -----------------------------
[   83.241205] drivers/net/gtp.c:799 suspicious rcu_dereference_check() usage!
[   83.243828]
[   83.243828] other info that might help us debug this:
[   83.243828]
[   83.246325]
[   83.246325] rcu_scheduler_active = 2, debug_locks = 1
[   83.247314] 1 lock held by gtp-link/1008:
[   83.248523]  #0: 0000000017772c7f (rtnl_mutex){+.+.}, at: __rtnl_newlink+0x5f5/0x11b0
[   83.251503]
[   83.251503] stack backtrace:
[   83.252173] CPU: 0 PID: 1008 Comm: gtp-link Not tainted 5.2.0-rc6+ #49
[   83.253271] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[   83.254562] Call Trace:
[   83.254995]  dump_stack+0x7c/0xbb
[   83.255567]  gtp_encap_enable_socket+0x2df/0x360 [gtp]
[   83.256415]  ? gtp_find_dev+0x1a0/0x1a0 [gtp]
[   83.257161]  ? memset+0x1f/0x40
[   83.257843]  gtp_newlink+0x90/0xa21 [gtp]
[   83.258497]  ? __netlink_ns_capable+0xc3/0xf0
[   83.259260]  __rtnl_newlink+0xb9f/0x11b0
[   83.260022]  ? rtnl_link_unregister+0x230/0x230
[ ... ]

Fixes: 1e3a3abd8b28 ("gtp: make GTP sockets in gtp_newlink optional")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index dba3869b61be..2756edd84abc 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -293,12 +293,14 @@ static void gtp_encap_destroy(struct sock *sk)
 {
 	struct gtp_dev *gtp;
 
-	gtp = rcu_dereference_sk_user_data(sk);
+	lock_sock(sk);
+	gtp = sk->sk_user_data;
 	if (gtp) {
 		udp_sk(sk)->encap_type = 0;
 		rcu_assign_sk_user_data(sk, NULL);
 		sock_put(sk);
 	}
+	release_sock(sk);
 }
 
 static void gtp_encap_disable_sock(struct sock *sk)
@@ -798,7 +800,8 @@ static struct sock *gtp_encap_enable_socket(int fd, int type,
 		goto out_sock;
 	}
 
-	if (rcu_dereference_sk_user_data(sock->sk)) {
+	lock_sock(sock->sk);
+	if (sock->sk->sk_user_data) {
 		sk = ERR_PTR(-EBUSY);
 		goto out_sock;
 	}
@@ -814,6 +817,7 @@ static struct sock *gtp_encap_enable_socket(int fd, int type,
 	setup_udp_tunnel_sock(sock_net(sock->sk), sock, &tuncfg);
 
 out_sock:
+	release_sock(sock->sk);
 	sockfd_put(sock);
 	return sk;
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 102/293] gtp: fix Illegal context switch in RCU read-side critical section.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (100 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 101/293] gtp: fix suspicious RCU usage Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 103/293] gtp: fix use-after-free in gtp_encap_destroy() Greg Kroah-Hartman
                   ` (196 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Taehee Yoo, David S. Miller, Sasha Levin

[ Upstream commit 3f167e1921865b379a9becf03828e7202c7b4917 ]

ipv4_pdp_add() is called in RCU read-side critical section.
So GFP_KERNEL should not be used in the function.
This patch make ipv4_pdp_add() to use GFP_ATOMIC instead of GFP_KERNEL.

Test commands:
gtp-link add gtp1 &
gtp-tunnel add gtp1 v1 100 200 1.1.1.1 2.2.2.2

Splat looks like:
[  130.618881] =============================
[  130.626382] WARNING: suspicious RCU usage
[  130.626994] 5.2.0-rc6+ #50 Not tainted
[  130.627622] -----------------------------
[  130.628223] ./include/linux/rcupdate.h:266 Illegal context switch in RCU read-side critical section!
[  130.629684]
[  130.629684] other info that might help us debug this:
[  130.629684]
[  130.631022]
[  130.631022] rcu_scheduler_active = 2, debug_locks = 1
[  130.632136] 4 locks held by gtp-tunnel/1025:
[  130.632925]  #0: 000000002b93c8b7 (cb_lock){++++}, at: genl_rcv+0x15/0x40
[  130.634159]  #1: 00000000f17bc999 (genl_mutex){+.+.}, at: genl_rcv_msg+0xfb/0x130
[  130.635487]  #2: 00000000c644ed8e (rtnl_mutex){+.+.}, at: gtp_genl_new_pdp+0x18c/0x1150 [gtp]
[  130.636936]  #3: 0000000007a1cde7 (rcu_read_lock){....}, at: gtp_genl_new_pdp+0x187/0x1150 [gtp]
[  130.638348]
[  130.638348] stack backtrace:
[  130.639062] CPU: 1 PID: 1025 Comm: gtp-tunnel Not tainted 5.2.0-rc6+ #50
[  130.641318] Call Trace:
[  130.641707]  dump_stack+0x7c/0xbb
[  130.642252]  ___might_sleep+0x2c0/0x3b0
[  130.642862]  kmem_cache_alloc_trace+0x1cd/0x2b0
[  130.643591]  gtp_genl_new_pdp+0x6c5/0x1150 [gtp]
[  130.644371]  genl_family_rcv_msg+0x63a/0x1030
[  130.645074]  ? mutex_lock_io_nested+0x1090/0x1090
[  130.645845]  ? genl_unregister_family+0x630/0x630
[  130.646592]  ? debug_show_all_locks+0x2d0/0x2d0
[  130.647293]  ? check_flags.part.40+0x440/0x440
[  130.648099]  genl_rcv_msg+0xa3/0x130
[ ... ]

Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 2756edd84abc..c751f87c935e 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -956,7 +956,7 @@ static int ipv4_pdp_add(struct gtp_dev *gtp, struct sock *sk,
 
 	}
 
-	pctx = kmalloc(sizeof(struct pdp_ctx), GFP_KERNEL);
+	pctx = kmalloc(sizeof(*pctx), GFP_ATOMIC);
 	if (pctx == NULL)
 		return -ENOMEM;
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 103/293] gtp: fix use-after-free in gtp_encap_destroy()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (101 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 102/293] gtp: fix Illegal context switch in RCU read-side critical section Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 104/293] gtp: fix use-after-free in gtp_newlink() Greg Kroah-Hartman
                   ` (195 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Taehee Yoo, David S. Miller, Sasha Levin

[ Upstream commit 1788b8569f5de27da09087fa3f6580d2aa04cc75 ]

gtp_encap_destroy() is called twice.
1. When interface is deleted.
2. When udp socket is destroyed.
either gtp->sk0 or gtp->sk1u could be freed by sock_put() in
gtp_encap_destroy(). so, when gtp_encap_destroy() is called again,
it would uses freed sk pointer.

patch makes gtp_encap_destroy() to set either gtp->sk0 or gtp->sk1u to
null. in addition, both gtp->sk0 and gtp->sk1u pointer are protected
by rtnl_lock. so, rtnl_lock() is added.

Test command:
   gtp-link add gtp1 &
   killall gtp-link
   ip link del gtp1

Splat looks like:
[   83.182767] BUG: KASAN: use-after-free in __lock_acquire+0x3a20/0x46a0
[   83.184128] Read of size 8 at addr ffff8880cc7d5360 by task ip/1008
[   83.185567] CPU: 1 PID: 1008 Comm: ip Not tainted 5.2.0-rc6+ #50
[   83.188469] Call Trace:
[ ... ]
[   83.200126]  lock_acquire+0x141/0x380
[   83.200575]  ? lock_sock_nested+0x3a/0xf0
[   83.201069]  _raw_spin_lock_bh+0x38/0x70
[   83.201551]  ? lock_sock_nested+0x3a/0xf0
[   83.202044]  lock_sock_nested+0x3a/0xf0
[   83.202520]  gtp_encap_destroy+0x18/0xe0 [gtp]
[   83.203065]  gtp_encap_disable.isra.14+0x13/0x50 [gtp]
[   83.203687]  gtp_dellink+0x56/0x170 [gtp]
[   83.204190]  rtnl_delete_link+0xb4/0x100
[ ... ]
[   83.236513] Allocated by task 976:
[   83.236925]  save_stack+0x19/0x80
[   83.237332]  __kasan_kmalloc.constprop.3+0xa0/0xd0
[   83.237894]  kmem_cache_alloc+0xd8/0x280
[   83.238360]  sk_prot_alloc.isra.42+0x50/0x200
[   83.238874]  sk_alloc+0x32/0x940
[   83.239264]  inet_create+0x283/0xc20
[   83.239684]  __sock_create+0x2dd/0x540
[   83.240136]  __sys_socket+0xca/0x1a0
[   83.240550]  __x64_sys_socket+0x6f/0xb0
[   83.240998]  do_syscall_64+0x9c/0x450
[   83.241466]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   83.242061]
[   83.242249] Freed by task 0:
[   83.242616]  save_stack+0x19/0x80
[   83.243013]  __kasan_slab_free+0x111/0x150
[   83.243498]  kmem_cache_free+0x89/0x250
[   83.244444]  __sk_destruct+0x38f/0x5a0
[   83.245366]  rcu_core+0x7e9/0x1c20
[   83.245766]  __do_softirq+0x213/0x8fa

Fixes: 1e3a3abd8b28 ("gtp: make GTP sockets in gtp_newlink optional")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index c751f87c935e..53fd66534e3a 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -289,13 +289,17 @@ static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb)
 	return gtp_rx(pctx, skb, hdrlen, gtp->role);
 }
 
-static void gtp_encap_destroy(struct sock *sk)
+static void __gtp_encap_destroy(struct sock *sk)
 {
 	struct gtp_dev *gtp;
 
 	lock_sock(sk);
 	gtp = sk->sk_user_data;
 	if (gtp) {
+		if (gtp->sk0 == sk)
+			gtp->sk0 = NULL;
+		else
+			gtp->sk1u = NULL;
 		udp_sk(sk)->encap_type = 0;
 		rcu_assign_sk_user_data(sk, NULL);
 		sock_put(sk);
@@ -303,12 +307,19 @@ static void gtp_encap_destroy(struct sock *sk)
 	release_sock(sk);
 }
 
+static void gtp_encap_destroy(struct sock *sk)
+{
+	rtnl_lock();
+	__gtp_encap_destroy(sk);
+	rtnl_unlock();
+}
+
 static void gtp_encap_disable_sock(struct sock *sk)
 {
 	if (!sk)
 		return;
 
-	gtp_encap_destroy(sk);
+	__gtp_encap_destroy(sk);
 }
 
 static void gtp_encap_disable(struct gtp_dev *gtp)
@@ -1045,6 +1056,7 @@ static int gtp_genl_new_pdp(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 	}
 
+	rtnl_lock();
 	rcu_read_lock();
 
 	gtp = gtp_find_dev(sock_net(skb->sk), info->attrs);
@@ -1069,6 +1081,7 @@ static int gtp_genl_new_pdp(struct sk_buff *skb, struct genl_info *info)
 
 out_unlock:
 	rcu_read_unlock();
+	rtnl_unlock();
 	return err;
 }
 
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 104/293] gtp: fix use-after-free in gtp_newlink()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (102 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 103/293] gtp: fix use-after-free in gtp_encap_destroy() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 105/293] net: mvmdio: defer probe of orion-mdio if a clock is not ready Greg Kroah-Hartman
                   ` (194 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Taehee Yoo, David S. Miller, Sasha Levin

[ Upstream commit a2bed90704c68d3763bf24decb1b781a45395de8 ]

Current gtp_newlink() could be called after unregister_pernet_subsys().
gtp_newlink() uses gtp_net but it can be destroyed by
unregister_pernet_subsys().
So unregister_pernet_subsys() should be called after
rtnl_link_unregister().

Test commands:
   #SHELL 1
   while :
   do
	   for i in {1..5}
	   do
		./gtp-link add gtp$i &
	   done
	   killall gtp-link
   done

   #SHELL 2
   while :
   do
	modprobe -rv gtp
   done

Splat looks like:
[  753.176631] BUG: KASAN: use-after-free in gtp_newlink+0x9b4/0xa5c [gtp]
[  753.177722] Read of size 8 at addr ffff8880d48f2458 by task gtp-link/7126
[  753.179082] CPU: 0 PID: 7126 Comm: gtp-link Tainted: G        W         5.2.0-rc6+ #50
[  753.185801] Call Trace:
[  753.186264]  dump_stack+0x7c/0xbb
[  753.186863]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.187583]  print_address_description+0xc7/0x240
[  753.188382]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.189097]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.189846]  __kasan_report+0x12a/0x16f
[  753.190542]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.191298]  kasan_report+0xe/0x20
[  753.191893]  gtp_newlink+0x9b4/0xa5c [gtp]
[  753.192580]  ? __netlink_ns_capable+0xc3/0xf0
[  753.193370]  __rtnl_newlink+0xb9f/0x11b0
[ ... ]
[  753.241201] Allocated by task 7186:
[  753.241844]  save_stack+0x19/0x80
[  753.242399]  __kasan_kmalloc.constprop.3+0xa0/0xd0
[  753.243192]  __kmalloc+0x13e/0x300
[  753.243764]  ops_init+0xd6/0x350
[  753.244314]  register_pernet_operations+0x249/0x6f0
[ ... ]
[  753.251770] Freed by task 7178:
[  753.252288]  save_stack+0x19/0x80
[  753.252833]  __kasan_slab_free+0x111/0x150
[  753.253962]  kfree+0xc7/0x280
[  753.254509]  ops_free_list.part.11+0x1c4/0x2d0
[  753.255241]  unregister_pernet_operations+0x262/0x390
[ ... ]
[  753.285883] list_add corruption. next->prev should be prev (ffff8880d48f2458), but was ffff8880d497d878. (next.
[  753.287241] ------------[ cut here ]------------
[  753.287794] kernel BUG at lib/list_debug.c:25!
[  753.288364] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[  753.289099] CPU: 0 PID: 7126 Comm: gtp-link Tainted: G    B   W         5.2.0-rc6+ #50
[  753.291036] RIP: 0010:__list_add_valid+0x74/0xd0
[  753.291589] Code: 48 39 da 75 27 48 39 f5 74 36 48 39 dd 74 31 48 83 c4 08 b8 01 00 00 00 5b 5d c3 48 89 d9 48b
[  753.293779] RSP: 0018:ffff8880cae8f398 EFLAGS: 00010286
[  753.294401] RAX: 0000000000000075 RBX: ffff8880d497d878 RCX: 0000000000000000
[  753.296260] RDX: 0000000000000075 RSI: 0000000000000008 RDI: ffffed10195d1e69
[  753.297070] RBP: ffff8880cd250ae0 R08: ffffed101b4bff21 R09: ffffed101b4bff21
[  753.297899] R10: 0000000000000001 R11: ffffed101b4bff20 R12: ffff8880d497d878
[  753.298703] R13: 0000000000000000 R14: ffff8880cd250ae0 R15: ffff8880d48f2458
[  753.299564] FS:  00007f5f79805740(0000) GS:ffff8880da400000(0000) knlGS:0000000000000000
[  753.300533] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  753.301231] CR2: 00007fe8c7ef4f10 CR3: 00000000b71a6006 CR4: 00000000000606f0
[  753.302183] Call Trace:
[  753.302530]  gtp_newlink+0x5f6/0xa5c [gtp]
[  753.303037]  ? __netlink_ns_capable+0xc3/0xf0
[  753.303576]  __rtnl_newlink+0xb9f/0x11b0
[  753.304092]  ? rtnl_link_unregister+0x230/0x230

Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 53fd66534e3a..5de4053774b8 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -1383,9 +1383,9 @@ late_initcall(gtp_init);
 
 static void __exit gtp_fini(void)
 {
-	unregister_pernet_subsys(&gtp_net_ops);
 	genl_unregister_family(&gtp_genl_family);
 	rtnl_link_unregister(&gtp_link_ops);
+	unregister_pernet_subsys(&gtp_net_ops);
 
 	pr_info("GTP module unloaded\n");
 }
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 105/293] net: mvmdio: defer probe of orion-mdio if a clock is not ready
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (103 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 104/293] gtp: fix use-after-free in gtp_newlink() Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 106/293] iavf: fix dereference of null rx_buffer pointer Greg Kroah-Hartman
                   ` (193 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Josua Mayer, Andrew Lunn,
	David S. Miller, Sasha Levin

[ Upstream commit 433a06d7d74e677c40b1148c70c48677ff62fb6b ]

Defer probing of the orion-mdio interface when getting a clock returns
EPROBE_DEFER. This avoids locking up the Armada 8k SoC when mdio is used
before all clocks have been enabled.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/marvell/mvmdio.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 0495487f7b42..c8e3c1119313 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -321,6 +321,10 @@ static int orion_mdio_probe(struct platform_device *pdev)
 
 	for (i = 0; i < ARRAY_SIZE(dev->clk); i++) {
 		dev->clk[i] = of_clk_get(pdev->dev.of_node, i);
+		if (PTR_ERR(dev->clk[i]) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto out_clk;
+		}
 		if (IS_ERR(dev->clk[i]))
 			break;
 		clk_prepare_enable(dev->clk[i]);
@@ -365,6 +369,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
 	if (dev->err_interrupt > 0)
 		writel(0, dev->regs + MVMDIO_ERR_INT_MASK);
 
+out_clk:
 	for (i = 0; i < ARRAY_SIZE(dev->clk); i++) {
 		if (IS_ERR(dev->clk[i]))
 			break;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 106/293] iavf: fix dereference of null rx_buffer pointer
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (104 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 105/293] net: mvmdio: defer probe of orion-mdio if a clock is not ready Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 107/293] floppy: fix div-by-zero in setup_format_params Greg Kroah-Hartman
                   ` (192 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Colin Ian King, Andrew Bowers,
	Jeff Kirsher, Sasha Levin

[ Upstream commit 9fe06a51287b2d41baef7ece94df34b5abf19b90 ]

A recent commit efa14c3985828d ("iavf: allow null RX descriptors") added
a null pointer sanity check on rx_buffer, however, rx_buffer is being
dereferenced before that check, which implies a null pointer dereference
bug can potentially occur.  Fix this by only dereferencing rx_buffer
until after the null pointer check.

Addresses-Coverity: ("Dereference before null check")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 7368b0dc3af8..4afdabbe95e8 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1117,7 +1117,7 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
 					  struct i40e_rx_buffer *rx_buffer,
 					  unsigned int size)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
+	void *va;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = i40e_rx_pg_size(rx_ring) / 2;
 #else
@@ -1127,6 +1127,7 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
 	struct sk_buff *skb;
 
 	/* prefetch first cache line of first page */
+	va = page_address(rx_buffer->page) + rx_buffer->page_offset;
 	prefetch(va);
 #if L1_CACHE_BYTES < 128
 	prefetch(va + L1_CACHE_BYTES);
@@ -1181,7 +1182,7 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring,
 				      struct i40e_rx_buffer *rx_buffer,
 				      unsigned int size)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
+	void *va;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = i40e_rx_pg_size(rx_ring) / 2;
 #else
@@ -1191,6 +1192,7 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring,
 	struct sk_buff *skb;
 
 	/* prefetch first cache line of first page */
+	va = page_address(rx_buffer->page) + rx_buffer->page_offset;
 	prefetch(va);
 #if L1_CACHE_BYTES < 128
 	prefetch(va + L1_CACHE_BYTES);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 107/293] floppy: fix div-by-zero in setup_format_params
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (105 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 106/293] iavf: fix dereference of null rx_buffer pointer Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:19 ` [PATCH 4.14 108/293] floppy: fix out-of-bounds read in next_valid_format Greg Kroah-Hartman
                   ` (191 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Denis Efremov, Willy Tarreau,
	Linus Torvalds, Sasha Levin

[ Upstream commit f3554aeb991214cbfafd17d55e2bfddb50282e32 ]

This fixes a divide by zero error in the setup_format_params function of
the floppy driver.

Two consecutive ioctls can trigger the bug: The first one should set the
drive geometry with such .sect and .rate values for the F_SECT_PER_TRACK
to become zero.  Next, the floppy format operation should be called.

A floppy disk is not required to be inserted.  An unprivileged user
could trigger the bug if the device is accessible.

The patch checks F_SECT_PER_TRACK for a non-zero value in the
set_geometry function.  The proper check should involve a reasonable
upper limit for the .sect and .rate fields, but it could change the
UAPI.

The patch also checks F_SECT_PER_TRACK in the setup_format_params, and
cancels the formatting operation in case of zero.

The bug was found by syzkaller.

Signed-off-by: Denis Efremov <efremov@ispras.ru>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/floppy.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 3ea9c3e9acb3..4c6c20376a83 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -2114,6 +2114,9 @@ static void setup_format_params(int track)
 	raw_cmd->kernel_data = floppy_track_buffer;
 	raw_cmd->length = 4 * F_SECT_PER_TRACK;
 
+	if (!F_SECT_PER_TRACK)
+		return;
+
 	/* allow for about 30ms for data transport per track */
 	head_shift = (F_SECT_PER_TRACK + 5) / 6;
 
@@ -3238,6 +3241,8 @@ static int set_geometry(unsigned int cmd, struct floppy_struct *g,
 	/* sanity checking for parameters. */
 	if (g->sect <= 0 ||
 	    g->head <= 0 ||
+	    /* check for zero in F_SECT_PER_TRACK */
+	    (unsigned char)((g->sect << 2) >> FD_SIZECODE(g)) == 0 ||
 	    g->track <= 0 || g->track > UDP->tracks >> STRETCH(g) ||
 	    /* check if reserved bits are set */
 	    (g->stretch & ~(FD_STRETCH | FD_SWAPSIDES | FD_SECTBASEMASK)) != 0)
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 108/293] floppy: fix out-of-bounds read in next_valid_format
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (106 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 107/293] floppy: fix div-by-zero in setup_format_params Greg Kroah-Hartman
@ 2019-07-29 19:19 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 109/293] floppy: fix invalid pointer dereference in drive_name Greg Kroah-Hartman
                   ` (190 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:19 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Denis Efremov, Willy Tarreau,
	Linus Torvalds, Sasha Levin

[ Upstream commit 5635f897ed83fd539df78e98ba69ee91592f9bb8 ]

This fixes a global out-of-bounds read access in the next_valid_format
function of the floppy driver.

The values from autodetect field of the struct floppy_drive_params are
used as indices for the floppy_type array in the next_valid_format
function 'floppy_type[DP->autodetect[probed_format]].sect'.

To trigger the bug, one could use a value out of range and set the drive
parameters with the FDSETDRVPRM ioctl.  A floppy disk is not required to
be inserted.

CAP_SYS_ADMIN is required to call FDSETDRVPRM.

The patch adds the check for values of the autodetect field to be in the
'0 <= x < ARRAY_SIZE(floppy_type)' range of the floppy_type array indices.

The bug was found by syzkaller.

Signed-off-by: Denis Efremov <efremov@ispras.ru>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/floppy.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 4c6c20376a83..a4f630ef2b75 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3386,6 +3386,20 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 	return 0;
 }
 
+static bool valid_floppy_drive_params(const short autodetect[8])
+{
+	size_t floppy_type_size = ARRAY_SIZE(floppy_type);
+	size_t i = 0;
+
+	for (i = 0; i < 8; ++i) {
+		if (autodetect[i] < 0 ||
+		    autodetect[i] >= floppy_type_size)
+			return false;
+	}
+
+	return true;
+}
+
 static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 		    unsigned long param)
 {
@@ -3512,6 +3526,8 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		SUPBOUND(size, strlen((const char *)outparam) + 1);
 		break;
 	case FDSETDRVPRM:
+		if (!valid_floppy_drive_params(inparam.dp.autodetect))
+			return -EINVAL;
 		*UDP = inparam.dp;
 		break;
 	case FDGETDRVPRM:
@@ -3709,6 +3725,8 @@ static int compat_setdrvprm(int drive,
 		return -EPERM;
 	if (copy_from_user(&v, arg, sizeof(struct compat_floppy_drive_params)))
 		return -EFAULT;
+	if (!valid_floppy_drive_params(v.autodetect))
+		return -EINVAL;
 	mutex_lock(&floppy_mutex);
 	UDP->cmos = v.cmos;
 	UDP->max_dtr = v.max_dtr;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 109/293] floppy: fix invalid pointer dereference in drive_name
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (107 preceding siblings ...)
  2019-07-29 19:19 ` [PATCH 4.14 108/293] floppy: fix out-of-bounds read in next_valid_format Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 110/293] floppy: fix out-of-bounds read in copy_buffer Greg Kroah-Hartman
                   ` (189 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Denis Efremov, Willy Tarreau,
	Linus Torvalds, Sasha Levin

[ Upstream commit 9b04609b784027968348796a18f601aed9db3789 ]

This fixes the invalid pointer dereference in the drive_name function of
the floppy driver.

The native_format field of the struct floppy_drive_params is used as
floppy_type array index in the drive_name function.  Thus, the field
should be checked the same way as the autodetect field.

To trigger the bug, one could use a value out of range and set the drive
parameters with the FDSETDRVPRM ioctl.  Next, FDGETDRVTYP ioctl should
be used to call the drive_name.  A floppy disk is not required to be
inserted.

CAP_SYS_ADMIN is required to call FDSETDRVPRM.

The patch adds the check for a value of the native_format field to be in
the '0 <= x < ARRAY_SIZE(floppy_type)' range of the floppy_type array
indices.

The bug was found by syzkaller.

Signed-off-by: Denis Efremov <efremov@ispras.ru>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/floppy.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index a4f630ef2b75..b4051e251041 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3386,7 +3386,8 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 	return 0;
 }
 
-static bool valid_floppy_drive_params(const short autodetect[8])
+static bool valid_floppy_drive_params(const short autodetect[8],
+		int native_format)
 {
 	size_t floppy_type_size = ARRAY_SIZE(floppy_type);
 	size_t i = 0;
@@ -3397,6 +3398,9 @@ static bool valid_floppy_drive_params(const short autodetect[8])
 			return false;
 	}
 
+	if (native_format < 0 || native_format >= floppy_type_size)
+		return false;
+
 	return true;
 }
 
@@ -3526,7 +3530,8 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		SUPBOUND(size, strlen((const char *)outparam) + 1);
 		break;
 	case FDSETDRVPRM:
-		if (!valid_floppy_drive_params(inparam.dp.autodetect))
+		if (!valid_floppy_drive_params(inparam.dp.autodetect,
+				inparam.dp.native_format))
 			return -EINVAL;
 		*UDP = inparam.dp;
 		break;
@@ -3725,7 +3730,7 @@ static int compat_setdrvprm(int drive,
 		return -EPERM;
 	if (copy_from_user(&v, arg, sizeof(struct compat_floppy_drive_params)))
 		return -EFAULT;
-	if (!valid_floppy_drive_params(v.autodetect))
+	if (!valid_floppy_drive_params(v.autodetect, v.native_format))
 		return -EINVAL;
 	mutex_lock(&floppy_mutex);
 	UDP->cmos = v.cmos;
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 110/293] floppy: fix out-of-bounds read in copy_buffer
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (108 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 109/293] floppy: fix invalid pointer dereference in drive_name Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 111/293] xen: let alloc_xenballooned_pages() fail if not enough memory free Greg Kroah-Hartman
                   ` (188 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Denis Efremov, Willy Tarreau,
	Linus Torvalds, Sasha Levin

[ Upstream commit da99466ac243f15fbba65bd261bfc75ffa1532b6 ]

This fixes a global out-of-bounds read access in the copy_buffer
function of the floppy driver.

The FDDEFPRM ioctl allows one to set the geometry of a disk.  The sect
and head fields (unsigned int) of the floppy_drive structure are used to
compute the max_sector (int) in the make_raw_rw_request function.  It is
possible to overflow the max_sector.  Next, max_sector is passed to the
copy_buffer function and used in one of the memcpy calls.

An unprivileged user could trigger the bug if the device is accessible,
but requires a floppy disk to be inserted.

The patch adds the check for the .sect * .head multiplication for not
overflowing in the set_geometry function.

The bug was found by syzkaller.

Signed-off-by: Denis Efremov <efremov@ispras.ru>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/floppy.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index b4051e251041..a9d1430fc5ee 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3239,8 +3239,10 @@ static int set_geometry(unsigned int cmd, struct floppy_struct *g,
 	int cnt;
 
 	/* sanity checking for parameters. */
-	if (g->sect <= 0 ||
-	    g->head <= 0 ||
+	if ((int)g->sect <= 0 ||
+	    (int)g->head <= 0 ||
+	    /* check for overflow in max_sector */
+	    (int)(g->sect * g->head) <= 0 ||
 	    /* check for zero in F_SECT_PER_TRACK */
 	    (unsigned char)((g->sect << 2) >> FD_SIZECODE(g)) == 0 ||
 	    g->track <= 0 || g->track > UDP->tracks >> STRETCH(g) ||
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 111/293] xen: let alloc_xenballooned_pages() fail if not enough memory free
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (109 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 110/293] floppy: fix out-of-bounds read in copy_buffer Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 112/293] scsi: NCR5380: Reduce goto statements in NCR5380_select() Greg Kroah-Hartman
                   ` (187 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Juergen Gross

From: Juergen Gross <jgross@suse.com>

commit a1078e821b605813b63bf6bca414a85f804d5c66 upstream.

Instead of trying to allocate pages with GFP_USER in
add_ballooned_pages() check the available free memory via
si_mem_available(). GFP_USER is far less limiting memory exhaustion
than the test via si_mem_available().

This will avoid dom0 running out of memory due to excessive foreign
page mappings especially on ARM and on x86 in PVH mode, as those don't
have a pre-ballooned area which can be used for foreign mappings.

As the normal ballooning suffers from the same problem don't balloon
down more than si_mem_available() pages in one iteration. At the same
time limit the default maximum number of retries.

This is part of XSA-300.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/xen/balloon.c |   16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -590,8 +590,15 @@ static void balloon_process(struct work_
 				state = reserve_additional_memory();
 		}
 
-		if (credit < 0)
-			state = decrease_reservation(-credit, GFP_BALLOON);
+		if (credit < 0) {
+			long n_pages;
+
+			n_pages = min(-credit, si_mem_available());
+			state = decrease_reservation(n_pages, GFP_BALLOON);
+			if (state == BP_DONE && n_pages != -credit &&
+			    n_pages < totalreserve_pages)
+				state = BP_EAGAIN;
+		}
 
 		state = update_schedule(state);
 
@@ -630,6 +637,9 @@ static int add_ballooned_pages(int nr_pa
 		}
 	}
 
+	if (si_mem_available() < nr_pages)
+		return -ENOMEM;
+
 	st = decrease_reservation(nr_pages, GFP_USER);
 	if (st != BP_DONE)
 		return -ENOMEM;
@@ -759,7 +769,7 @@ static int __init balloon_init(void)
 	balloon_stats.schedule_delay = 1;
 	balloon_stats.max_schedule_delay = 32;
 	balloon_stats.retry_count = 1;
-	balloon_stats.max_retry_count = RETRY_UNLIMITED;
+	balloon_stats.max_retry_count = 4;
 
 #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
 	set_online_page_callback(&xen_online_page);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 112/293] scsi: NCR5380: Reduce goto statements in NCR5380_select()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (110 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 111/293] xen: let alloc_xenballooned_pages() fail if not enough memory free Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 113/293] scsi: NCR5380: Always re-enable reselection interrupt Greg Kroah-Hartman
                   ` (186 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Michael Schmitz, Finn Thain,
	Martin K. Petersen

From: Finn Thain <fthain@telegraphics.com.au>

commit 6a162836997c10bbefb7c7ca772201cc45c0e4a6 upstream.

Replace a 'goto' statement with a simple 'return' where possible.  This
improves readability. No functional change.

Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/NCR5380.c |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -984,7 +984,7 @@ static struct scsi_cmnd *NCR5380_select(
 	if (!hostdata->selecting) {
 		/* Command was aborted */
 		NCR5380_write(MODE_REG, MR_BASE);
-		goto out;
+		return NULL;
 	}
 	if (err < 0) {
 		NCR5380_write(MODE_REG, MR_BASE);
@@ -1033,7 +1033,7 @@ static struct scsi_cmnd *NCR5380_select(
 	if (!hostdata->selecting) {
 		NCR5380_write(MODE_REG, MR_BASE);
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-		goto out;
+		return NULL;
 	}
 
 	dsprintk(NDEBUG_ARBITRATION, instance, "won arbitration\n");
@@ -1116,13 +1116,16 @@ static struct scsi_cmnd *NCR5380_select(
 		spin_lock_irq(&hostdata->lock);
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 		NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
+
 		/* Can't touch cmd if it has been reclaimed by the scsi ML */
-		if (hostdata->selecting) {
-			cmd->result = DID_BAD_TARGET << 16;
-			complete_cmd(instance, cmd);
-			dsprintk(NDEBUG_SELECTION, instance, "target did not respond within 250ms\n");
-			cmd = NULL;
-		}
+		if (!hostdata->selecting)
+			return NULL;
+
+		cmd->result = DID_BAD_TARGET << 16;
+		complete_cmd(instance, cmd);
+		dsprintk(NDEBUG_SELECTION, instance,
+			"target did not respond within 250ms\n");
+		cmd = NULL;
 		goto out;
 	}
 
@@ -1155,7 +1158,7 @@ static struct scsi_cmnd *NCR5380_select(
 	}
 	if (!hostdata->selecting) {
 		do_abort(instance);
-		goto out;
+		return NULL;
 	}
 
 	dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 113/293] scsi: NCR5380: Always re-enable reselection interrupt
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (111 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 112/293] scsi: NCR5380: Reduce goto statements in NCR5380_select() Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 114/293] Revert "scsi: ncr5380: Increase register polling limit" Greg Kroah-Hartman
                   ` (185 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Michael Schmitz, Finn Thain,
	Stan Johnson, Martin K. Petersen

From: Finn Thain <fthain@telegraphics.com.au>

commit 57f31326518e98ee4cabf9a04efe00ed57c54147 upstream.

The reselection interrupt gets disabled during selection and must be
re-enabled when hostdata->connected becomes NULL. If it isn't re-enabled a
disconnected command may time-out or the target may wedge the bus while
trying to reselect the host. This can happen after a command is aborted.

Fix this by enabling the reselection interrupt in NCR5380_main() after
calls to NCR5380_select() and NCR5380_information_transfer() return.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: stable@vger.kernel.org # v4.9+
Fixes: 8b00c3d5d40d ("ncr5380: Implement new eh_abort_handler")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/NCR5380.c |   12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -710,6 +710,8 @@ static void NCR5380_main(struct work_str
 			NCR5380_information_transfer(instance);
 			done = 0;
 		}
+		if (!hostdata->connected)
+			NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 		spin_unlock_irq(&hostdata->lock);
 		if (!done)
 			cond_resched();
@@ -1106,8 +1108,6 @@ static struct scsi_cmnd *NCR5380_select(
 		spin_lock_irq(&hostdata->lock);
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 		NCR5380_reselect(instance);
-		if (!hostdata->connected)
-			NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 		shost_printk(KERN_ERR, instance, "reselection after won arbitration?\n");
 		goto out;
 	}
@@ -1115,7 +1115,6 @@ static struct scsi_cmnd *NCR5380_select(
 	if (err < 0) {
 		spin_lock_irq(&hostdata->lock);
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-		NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 
 		/* Can't touch cmd if it has been reclaimed by the scsi ML */
 		if (!hostdata->selecting)
@@ -1153,7 +1152,6 @@ static struct scsi_cmnd *NCR5380_select(
 	if (err < 0) {
 		shost_printk(KERN_ERR, instance, "select: REQ timeout\n");
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-		NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 		goto out;
 	}
 	if (!hostdata->selecting) {
@@ -1820,9 +1818,6 @@ static void NCR5380_information_transfer
 					 */
 					NCR5380_write(TARGET_COMMAND_REG, 0);
 
-					/* Enable reselect interrupts */
-					NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
-
 					maybe_release_dma_irq(instance);
 					return;
 				case MESSAGE_REJECT:
@@ -1854,8 +1849,6 @@ static void NCR5380_information_transfer
 					 */
 					NCR5380_write(TARGET_COMMAND_REG, 0);
 
-					/* Enable reselect interrupts */
-					NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 #ifdef SUN3_SCSI_VME
 					dregs->csr |= CSR_DMA_ENABLE;
 #endif
@@ -1963,7 +1956,6 @@ static void NCR5380_information_transfer
 					cmd->result = DID_ERROR << 16;
 					complete_cmd(instance, cmd);
 					maybe_release_dma_irq(instance);
-					NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 					return;
 				}
 				msgout = NOP;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 114/293] Revert "scsi: ncr5380: Increase register polling limit"
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (112 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 113/293] scsi: NCR5380: Always re-enable reselection interrupt Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 115/293] scsi: core: Fix race on creating sense cache Greg Kroah-Hartman
                   ` (184 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Michael Schmitz, Finn Thain,
	Stan Johnson, Martin K. Petersen

From: Finn Thain <fthain@telegraphics.com.au>

commit 25fcf94a2fa89dd3e73e965ebb0b38a2a4f72aa4 upstream.

This reverts commit 4822827a69d7cd3bc5a07b7637484ebd2cf88db6.

The purpose of that commit was to suppress a timeout warning message which
appeared to be caused by target latency. But suppressing the warning is
undesirable as the warning may indicate a messed up transfer count.

Another problem with that commit is that 15 ms is too long to keep
interrupts disabled as interrupt latency can cause system clock drift and
other problems.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: stable@vger.kernel.org
Fixes: 4822827a69d7 ("scsi: ncr5380: Increase register polling limit")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/NCR5380.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/NCR5380.h
+++ b/drivers/scsi/NCR5380.h
@@ -235,7 +235,7 @@ struct NCR5380_cmd {
 #define NCR5380_PIO_CHUNK_SIZE		256
 
 /* Time limit (ms) to poll registers when IRQs are disabled, e.g. during PDMA */
-#define NCR5380_REG_POLL_TIME		15
+#define NCR5380_REG_POLL_TIME		10
 
 static inline struct scsi_cmnd *NCR5380_to_scmd(struct NCR5380_cmd *ncmd_ptr)
 {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 115/293] scsi: core: Fix race on creating sense cache
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (113 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 114/293] Revert "scsi: ncr5380: Increase register polling limit" Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 116/293] scsi: megaraid_sas: Fix calculation of target ID Greg Kroah-Hartman
                   ` (183 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Christoph Hellwig, Hannes Reinecke,
	Ewan D. Milne, Ming Lei, Martin K. Petersen

From: Ming Lei <ming.lei@redhat.com>

commit f9b0530fa02e0c73f31a49ef743e8f44eb8e32cc upstream.

When scsi_init_sense_cache(host) is called concurrently from different
hosts, each code path may find that no cache has been created and
allocate a new one. The lack of locking can lead to potentially
overriding a cache allocated by a different host.

Fix the issue by moving 'mutex_lock(&scsi_sense_cache_mutex)' before
scsi_select_sense_cache().

Fixes: 0a6ac4ee7c21 ("scsi: respect unchecked_isa_dma for blk-mq")
Cc: Stable <stable@vger.kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/scsi_lib.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -71,11 +71,11 @@ int scsi_init_sense_cache(struct Scsi_Ho
 	struct kmem_cache *cache;
 	int ret = 0;
 
+	mutex_lock(&scsi_sense_cache_mutex);
 	cache = scsi_select_sense_cache(shost->unchecked_isa_dma);
 	if (cache)
-		return 0;
+		goto exit;
 
-	mutex_lock(&scsi_sense_cache_mutex);
 	if (shost->unchecked_isa_dma) {
 		scsi_sense_isadma_cache =
 			kmem_cache_create("scsi_sense_cache(DMA)",
@@ -90,7 +90,7 @@ int scsi_init_sense_cache(struct Scsi_Ho
 		if (!scsi_sense_cache)
 			ret = -ENOMEM;
 	}
-
+ exit:
 	mutex_unlock(&scsi_sense_cache_mutex);
 	return ret;
 }



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 116/293] scsi: megaraid_sas: Fix calculation of target ID
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (114 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 115/293] scsi: core: Fix race on creating sense cache Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 117/293] scsi: mac_scsi: Increase PIO/PDMA transfer length threshold Greg Kroah-Hartman
                   ` (182 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Shivasharan S, Martin K. Petersen

From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>

commit c8f96df5b8e633056b7ebf5d52a9d6fb1b156ce3 upstream.

In megasas_get_target_prop(), driver is incorrectly calculating the target
ID for devices with channel 1 and 3.  Due to this, firmware will either
fail the command (if there is no device with the target id sent from
driver) or could return the properties for a target which was not
intended.  Devices could end up with the wrong queue depth due to this.

Fix target id calculation for channel 1 and 3.

Fixes: 96188a89cc6d ("scsi: megaraid_sas: NVME interface target prop added")
Cc: stable@vger.kernel.org
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/megaraid/megaraid_sas_base.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5806,7 +5806,8 @@ megasas_get_target_prop(struct megasas_i
 	int ret;
 	struct megasas_cmd *cmd;
 	struct megasas_dcmd_frame *dcmd;
-	u16 targetId = (sdev->channel % 2) + sdev->id;
+	u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +
+			sdev->id;
 
 	cmd = megasas_get_cmd(instance);
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 117/293] scsi: mac_scsi: Increase PIO/PDMA transfer length threshold
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (115 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 116/293] scsi: megaraid_sas: Fix calculation of target ID Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 118/293] scsi: mac_scsi: Fix pseudo DMA implementation, take 2 Greg Kroah-Hartman
                   ` (181 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Michael Schmitz, Finn Thain,
	Stan Johnson, Martin K. Petersen

From: Finn Thain <fthain@telegraphics.com.au>

commit 7398cee4c3e6aea1ba07a6449e5533ecd0b92cdd upstream.

Some targets introduce delays when handshaking the response to certain
commands. For example, a disk may send a 96-byte response to an INQUIRY
command (or a 24-byte response to a MODE SENSE command) too slowly.

Apparently the first 12 or 14 bytes are handshaked okay but then the system
bus error timeout is reached while transferring the next word.

Since the scsi bus phase hasn't changed, the driver then sets the target
borken flag to prevent further PDMA transfers. The driver also logs the
warning, "switching to slow handshake".

Raise the PDMA threshold to 512 bytes so that PIO transfers will be used
for these commands. This default is sufficiently low that PDMA will still
be used for READ and WRITE commands.

The existing threshold (16 bytes) was chosen more or less at random.
However, best performance requires the threshold to be as low as possible.
Those systems that don't need the PIO workaround at all may benefit from
mac_scsi.setup_use_pdma=1

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: stable@vger.kernel.org # v4.14+
Fixes: 3a0f64bfa907 ("mac_scsi: Fix pseudo DMA implementation")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/mac_scsi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -52,7 +52,7 @@ static int setup_cmd_per_lun = -1;
 module_param(setup_cmd_per_lun, int, 0);
 static int setup_sg_tablesize = -1;
 module_param(setup_sg_tablesize, int, 0);
-static int setup_use_pdma = -1;
+static int setup_use_pdma = 512;
 module_param(setup_use_pdma, int, 0);
 static int setup_hostid = -1;
 module_param(setup_hostid, int, 0);
@@ -305,7 +305,7 @@ static int macscsi_dma_xfer_len(struct N
                                 struct scsi_cmnd *cmd)
 {
 	if (hostdata->flags & FLAG_NO_PSEUDO_DMA ||
-	    cmd->SCp.this_residual < 16)
+	    cmd->SCp.this_residual < setup_use_pdma)
 		return 0;
 
 	return cmd->SCp.this_residual;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 118/293] scsi: mac_scsi: Fix pseudo DMA implementation, take 2
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (116 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 117/293] scsi: mac_scsi: Increase PIO/PDMA transfer length threshold Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 119/293] crypto: ghash - fix unaligned memory access in ghash_setkey() Greg Kroah-Hartman
                   ` (180 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Michael Schmitz, Geert Uytterhoeven,
	Finn Thain, Chris Jones, Stan Johnson, Martin K. Petersen

From: Finn Thain <fthain@telegraphics.com.au>

commit 78ff751f8e6a9446e9fb26b2bff0b8d3f8974cbd upstream.

A system bus error during a PDMA transfer can mess up the calculation of
the transfer residual (the PDMA handshaking hardware lacks a byte
counter). This results in data corruption.

The algorithm in this patch anticipates a bus error by starting each
transfer with a MOVE.B instruction. If a bus error is caught the transfer
will be retried. If a bus error is caught later in the transfer (for a
MOVE.W instruction) the transfer gets failed and subsequent requests for
that target will use PIO instead of PDMA.

This avoids the "!REQ and !ACK" error so the severity level of that message
is reduced to KERN_DEBUG.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org # v4.14+
Fixes: 3a0f64bfa907 ("mac_scsi: Fix pseudo DMA implementation")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reported-by: Chris Jones <chris@martin-jones.com>
Tested-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/mac_scsi.c |  369 ++++++++++++++++++++++++++++--------------------
 1 file changed, 217 insertions(+), 152 deletions(-)

--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -3,6 +3,8 @@
  *
  * Copyright 1998, Michael Schmitz <mschmitz@lbl.gov>
  *
+ * Copyright 2019 Finn Thain
+ *
  * derived in part from:
  */
 /*
@@ -11,6 +13,7 @@
  * Copyright 1995, Russell King
  */
 
+#include <linux/delay.h>
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/ioport.h>
@@ -89,101 +92,217 @@ static int __init mac_scsi_setup(char *s
 __setup("mac5380=", mac_scsi_setup);
 #endif /* !MODULE */
 
-/* Pseudo DMA asm originally by Ove Edlund */
+/*
+ * According to "Inside Macintosh: Devices", Mac OS requires disk drivers to
+ * specify the number of bytes between the delays expected from a SCSI target.
+ * This allows the operating system to "prevent bus errors when a target fails
+ * to deliver the next byte within the processor bus error timeout period."
+ * Linux SCSI drivers lack knowledge of the timing behaviour of SCSI targets
+ * so bus errors are unavoidable.
+ *
+ * If a MOVE.B instruction faults, we assume that zero bytes were transferred
+ * and simply retry. That assumption probably depends on target behaviour but
+ * seems to hold up okay. The NOP provides synchronization: without it the
+ * fault can sometimes occur after the program counter has moved past the
+ * offending instruction. Post-increment addressing can't be used.
+ */
+
+#define MOVE_BYTE(operands) \
+	asm volatile ( \
+		"1:     moveb " operands "     \n" \
+		"11:    nop                    \n" \
+		"       addq #1,%0             \n" \
+		"       subq #1,%1             \n" \
+		"40:                           \n" \
+		"                              \n" \
+		".section .fixup,\"ax\"        \n" \
+		".even                         \n" \
+		"90:    movel #1, %2           \n" \
+		"       jra 40b                \n" \
+		".previous                     \n" \
+		"                              \n" \
+		".section __ex_table,\"a\"     \n" \
+		".align  4                     \n" \
+		".long   1b,90b                \n" \
+		".long  11b,90b                \n" \
+		".previous                     \n" \
+		: "+a" (addr), "+r" (n), "+r" (result) : "a" (io))
 
-#define CP_IO_TO_MEM(s,d,n)				\
-__asm__ __volatile__					\
-    ("    cmp.w  #4,%2\n"				\
-     "    bls    8f\n"					\
-     "    move.w %1,%%d0\n"				\
-     "    neg.b  %%d0\n"				\
-     "    and.w  #3,%%d0\n"				\
-     "    sub.w  %%d0,%2\n"				\
-     "    bra    2f\n"					\
-     " 1: move.b (%0),(%1)+\n"				\
-     " 2: dbf    %%d0,1b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #5,%%d0\n"				\
-     "    bra    4f\n"					\
-     " 3: move.l (%0),(%1)+\n"				\
-     "31: move.l (%0),(%1)+\n"				\
-     "32: move.l (%0),(%1)+\n"				\
-     "33: move.l (%0),(%1)+\n"				\
-     "34: move.l (%0),(%1)+\n"				\
-     "35: move.l (%0),(%1)+\n"				\
-     "36: move.l (%0),(%1)+\n"				\
-     "37: move.l (%0),(%1)+\n"				\
-     " 4: dbf    %%d0,3b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #2,%%d0\n"				\
-     "    and.w  #7,%%d0\n"				\
-     "    bra    6f\n"					\
-     " 5: move.l (%0),(%1)+\n"				\
-     " 6: dbf    %%d0,5b\n"				\
-     "    and.w  #3,%2\n"				\
-     "    bra    8f\n"					\
-     " 7: move.b (%0),(%1)+\n"				\
-     " 8: dbf    %2,7b\n"				\
-     "    moveq.l #0, %2\n"				\
-     " 9: \n"						\
-     ".section .fixup,\"ax\"\n"				\
-     "    .even\n"					\
-     "91: moveq.l #1, %2\n"				\
-     "    jra 9b\n"					\
-     "94: moveq.l #4, %2\n"				\
-     "    jra 9b\n"					\
-     ".previous\n"					\
-     ".section __ex_table,\"a\"\n"			\
-     "   .align 4\n"					\
-     "   .long  1b,91b\n"				\
-     "   .long  3b,94b\n"				\
-     "   .long 31b,94b\n"				\
-     "   .long 32b,94b\n"				\
-     "   .long 33b,94b\n"				\
-     "   .long 34b,94b\n"				\
-     "   .long 35b,94b\n"				\
-     "   .long 36b,94b\n"				\
-     "   .long 37b,94b\n"				\
-     "   .long  5b,94b\n"				\
-     "   .long  7b,91b\n"				\
-     ".previous"					\
-     : "=a"(s), "=a"(d), "=d"(n)			\
-     : "0"(s), "1"(d), "2"(n)				\
-     : "d0")
+/*
+ * If a MOVE.W (or MOVE.L) instruction faults, it cannot be retried because
+ * the residual byte count would be uncertain. In that situation the MOVE_WORD
+ * macro clears n in the fixup section to abort the transfer.
+ */
+
+#define MOVE_WORD(operands) \
+	asm volatile ( \
+		"1:     movew " operands "     \n" \
+		"11:    nop                    \n" \
+		"       subq #2,%1             \n" \
+		"40:                           \n" \
+		"                              \n" \
+		".section .fixup,\"ax\"        \n" \
+		".even                         \n" \
+		"90:    movel #0, %1           \n" \
+		"       movel #2, %2           \n" \
+		"       jra 40b                \n" \
+		".previous                     \n" \
+		"                              \n" \
+		".section __ex_table,\"a\"     \n" \
+		".align  4                     \n" \
+		".long   1b,90b                \n" \
+		".long  11b,90b                \n" \
+		".previous                     \n" \
+		: "+a" (addr), "+r" (n), "+r" (result) : "a" (io))
+
+#define MOVE_16_WORDS(operands) \
+	asm volatile ( \
+		"1:     movew " operands "     \n" \
+		"2:     movew " operands "     \n" \
+		"3:     movew " operands "     \n" \
+		"4:     movew " operands "     \n" \
+		"5:     movew " operands "     \n" \
+		"6:     movew " operands "     \n" \
+		"7:     movew " operands "     \n" \
+		"8:     movew " operands "     \n" \
+		"9:     movew " operands "     \n" \
+		"10:    movew " operands "     \n" \
+		"11:    movew " operands "     \n" \
+		"12:    movew " operands "     \n" \
+		"13:    movew " operands "     \n" \
+		"14:    movew " operands "     \n" \
+		"15:    movew " operands "     \n" \
+		"16:    movew " operands "     \n" \
+		"17:    nop                    \n" \
+		"       subl  #32,%1           \n" \
+		"40:                           \n" \
+		"                              \n" \
+		".section .fixup,\"ax\"        \n" \
+		".even                         \n" \
+		"90:    movel #0, %1           \n" \
+		"       movel #2, %2           \n" \
+		"       jra 40b                \n" \
+		".previous                     \n" \
+		"                              \n" \
+		".section __ex_table,\"a\"     \n" \
+		".align  4                     \n" \
+		".long   1b,90b                \n" \
+		".long   2b,90b                \n" \
+		".long   3b,90b                \n" \
+		".long   4b,90b                \n" \
+		".long   5b,90b                \n" \
+		".long   6b,90b                \n" \
+		".long   7b,90b                \n" \
+		".long   8b,90b                \n" \
+		".long   9b,90b                \n" \
+		".long  10b,90b                \n" \
+		".long  11b,90b                \n" \
+		".long  12b,90b                \n" \
+		".long  13b,90b                \n" \
+		".long  14b,90b                \n" \
+		".long  15b,90b                \n" \
+		".long  16b,90b                \n" \
+		".long  17b,90b                \n" \
+		".previous                     \n" \
+		: "+a" (addr), "+r" (n), "+r" (result) : "a" (io))
+
+#define MAC_PDMA_DELAY		32
+
+static inline int mac_pdma_recv(void __iomem *io, unsigned char *start, int n)
+{
+	unsigned char *addr = start;
+	int result = 0;
+
+	if (n >= 1) {
+		MOVE_BYTE("%3@,%0@");
+		if (result)
+			goto out;
+	}
+	if (n >= 1 && ((unsigned long)addr & 1)) {
+		MOVE_BYTE("%3@,%0@");
+		if (result)
+			goto out;
+	}
+	while (n >= 32)
+		MOVE_16_WORDS("%3@,%0@+");
+	while (n >= 2)
+		MOVE_WORD("%3@,%0@+");
+	if (result)
+		return start - addr; /* Negated to indicate uncertain length */
+	if (n == 1)
+		MOVE_BYTE("%3@,%0@");
+out:
+	return addr - start;
+}
+
+static inline int mac_pdma_send(unsigned char *start, void __iomem *io, int n)
+{
+	unsigned char *addr = start;
+	int result = 0;
+
+	if (n >= 1) {
+		MOVE_BYTE("%0@,%3@");
+		if (result)
+			goto out;
+	}
+	if (n >= 1 && ((unsigned long)addr & 1)) {
+		MOVE_BYTE("%0@,%3@");
+		if (result)
+			goto out;
+	}
+	while (n >= 32)
+		MOVE_16_WORDS("%0@+,%3@");
+	while (n >= 2)
+		MOVE_WORD("%0@+,%3@");
+	if (result)
+		return start - addr; /* Negated to indicate uncertain length */
+	if (n == 1)
+		MOVE_BYTE("%0@,%3@");
+out:
+	return addr - start;
+}
 
 static inline int macscsi_pread(struct NCR5380_hostdata *hostdata,
                                 unsigned char *dst, int len)
 {
 	u8 __iomem *s = hostdata->pdma_io + (INPUT_DATA_REG << 4);
 	unsigned char *d = dst;
-	int n = len;
-	int transferred;
+
+	hostdata->pdma_residual = len;
 
 	while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG,
 	                              BASR_DRQ | BASR_PHASE_MATCH,
 	                              BASR_DRQ | BASR_PHASE_MATCH, HZ / 64)) {
-		CP_IO_TO_MEM(s, d, n);
+		int bytes;
+
+		bytes = mac_pdma_recv(s, d, min(hostdata->pdma_residual, 512));
 
-		transferred = d - dst - n;
-		hostdata->pdma_residual = len - transferred;
+		if (bytes > 0) {
+			d += bytes;
+			hostdata->pdma_residual -= bytes;
+		}
 
-		/* No bus error. */
-		if (n == 0)
+		if (hostdata->pdma_residual == 0)
 			return 0;
 
-		/* Target changed phase early? */
 		if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ,
-		                           BUS_AND_STATUS_REG, BASR_ACK, BASR_ACK, HZ / 64) < 0)
-			scmd_printk(KERN_ERR, hostdata->connected,
+		                           BUS_AND_STATUS_REG, BASR_ACK,
+		                           BASR_ACK, HZ / 64) < 0)
+			scmd_printk(KERN_DEBUG, hostdata->connected,
 			            "%s: !REQ and !ACK\n", __func__);
 		if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
 			return 0;
 
+		if (bytes == 0)
+			udelay(MAC_PDMA_DELAY);
+
+		if (bytes >= 0)
+			continue;
+
 		dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host,
-		         "%s: bus error (%d/%d)\n", __func__, transferred, len);
+		         "%s: bus error (%d/%d)\n", __func__, d - dst, len);
 		NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host);
-		d = dst + transferred;
-		n = len - transferred;
+		return -1;
 	}
 
 	scmd_printk(KERN_ERR, hostdata->connected,
@@ -192,93 +311,27 @@ static inline int macscsi_pread(struct N
 	return -1;
 }
 
-
-#define CP_MEM_TO_IO(s,d,n)				\
-__asm__ __volatile__					\
-    ("    cmp.w  #4,%2\n"				\
-     "    bls    8f\n"					\
-     "    move.w %0,%%d0\n"				\
-     "    neg.b  %%d0\n"				\
-     "    and.w  #3,%%d0\n"				\
-     "    sub.w  %%d0,%2\n"				\
-     "    bra    2f\n"					\
-     " 1: move.b (%0)+,(%1)\n"				\
-     " 2: dbf    %%d0,1b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #5,%%d0\n"				\
-     "    bra    4f\n"					\
-     " 3: move.l (%0)+,(%1)\n"				\
-     "31: move.l (%0)+,(%1)\n"				\
-     "32: move.l (%0)+,(%1)\n"				\
-     "33: move.l (%0)+,(%1)\n"				\
-     "34: move.l (%0)+,(%1)\n"				\
-     "35: move.l (%0)+,(%1)\n"				\
-     "36: move.l (%0)+,(%1)\n"				\
-     "37: move.l (%0)+,(%1)\n"				\
-     " 4: dbf    %%d0,3b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #2,%%d0\n"				\
-     "    and.w  #7,%%d0\n"				\
-     "    bra    6f\n"					\
-     " 5: move.l (%0)+,(%1)\n"				\
-     " 6: dbf    %%d0,5b\n"				\
-     "    and.w  #3,%2\n"				\
-     "    bra    8f\n"					\
-     " 7: move.b (%0)+,(%1)\n"				\
-     " 8: dbf    %2,7b\n"				\
-     "    moveq.l #0, %2\n"				\
-     " 9: \n"						\
-     ".section .fixup,\"ax\"\n"				\
-     "    .even\n"					\
-     "91: moveq.l #1, %2\n"				\
-     "    jra 9b\n"					\
-     "94: moveq.l #4, %2\n"				\
-     "    jra 9b\n"					\
-     ".previous\n"					\
-     ".section __ex_table,\"a\"\n"			\
-     "   .align 4\n"					\
-     "   .long  1b,91b\n"				\
-     "   .long  3b,94b\n"				\
-     "   .long 31b,94b\n"				\
-     "   .long 32b,94b\n"				\
-     "   .long 33b,94b\n"				\
-     "   .long 34b,94b\n"				\
-     "   .long 35b,94b\n"				\
-     "   .long 36b,94b\n"				\
-     "   .long 37b,94b\n"				\
-     "   .long  5b,94b\n"				\
-     "   .long  7b,91b\n"				\
-     ".previous"					\
-     : "=a"(s), "=a"(d), "=d"(n)			\
-     : "0"(s), "1"(d), "2"(n)				\
-     : "d0")
-
 static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata,
                                  unsigned char *src, int len)
 {
 	unsigned char *s = src;
 	u8 __iomem *d = hostdata->pdma_io + (OUTPUT_DATA_REG << 4);
-	int n = len;
-	int transferred;
+
+	hostdata->pdma_residual = len;
 
 	while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG,
 	                              BASR_DRQ | BASR_PHASE_MATCH,
 	                              BASR_DRQ | BASR_PHASE_MATCH, HZ / 64)) {
-		CP_MEM_TO_IO(s, d, n);
+		int bytes;
 
-		transferred = s - src - n;
-		hostdata->pdma_residual = len - transferred;
+		bytes = mac_pdma_send(s, d, min(hostdata->pdma_residual, 512));
 
-		/* Target changed phase early? */
-		if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ,
-		                           BUS_AND_STATUS_REG, BASR_ACK, BASR_ACK, HZ / 64) < 0)
-			scmd_printk(KERN_ERR, hostdata->connected,
-			            "%s: !REQ and !ACK\n", __func__);
-		if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
-			return 0;
+		if (bytes > 0) {
+			s += bytes;
+			hostdata->pdma_residual -= bytes;
+		}
 
-		/* No bus error. */
-		if (n == 0) {
+		if (hostdata->pdma_residual == 0) {
 			if (NCR5380_poll_politely(hostdata, TARGET_COMMAND_REG,
 			                          TCR_LAST_BYTE_SENT,
 			                          TCR_LAST_BYTE_SENT, HZ / 64) < 0)
@@ -287,17 +340,29 @@ static inline int macscsi_pwrite(struct
 			return 0;
 		}
 
+		if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ,
+		                           BUS_AND_STATUS_REG, BASR_ACK,
+		                           BASR_ACK, HZ / 64) < 0)
+			scmd_printk(KERN_DEBUG, hostdata->connected,
+			            "%s: !REQ and !ACK\n", __func__);
+		if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
+			return 0;
+
+		if (bytes == 0)
+			udelay(MAC_PDMA_DELAY);
+
+		if (bytes >= 0)
+			continue;
+
 		dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host,
-		         "%s: bus error (%d/%d)\n", __func__, transferred, len);
+		         "%s: bus error (%d/%d)\n", __func__, s - src, len);
 		NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host);
-		s = src + transferred;
-		n = len - transferred;
+		return -1;
 	}
 
 	scmd_printk(KERN_ERR, hostdata->connected,
 	            "%s: phase mismatch or !DRQ\n", __func__);
 	NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host);
-
 	return -1;
 }
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 119/293] crypto: ghash - fix unaligned memory access in ghash_setkey()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (117 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 118/293] scsi: mac_scsi: Fix pseudo DMA implementation, take 2 Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 120/293] crypto: ccp - Validate the the error value used to index error messages Greg Kroah-Hartman
                   ` (179 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Peter Robinson, Eric Biggers, Herbert Xu

From: Eric Biggers <ebiggers@google.com>

commit 5c6bc4dfa515738149998bb0db2481a4fdead979 upstream.

Changing ghash_mod_init() to be subsys_initcall made it start running
before the alignment fault handler has been installed on ARM.  In kernel
builds where the keys in the ghash test vectors happened to be
misaligned in the kernel image, this exposed the longstanding bug that
ghash_setkey() is incorrectly casting the key buffer (which can have any
alignment) to be128 for passing to gf128mul_init_4k_lle().

Fix this by memcpy()ing the key to a temporary buffer.

Don't fix it by setting an alignmask on the algorithm instead because
that would unnecessarily force alignment of the data too.

Fixes: 2cdc6899a88e ("crypto: ghash - Add GHASH digest algorithm for GCM")
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 crypto/ghash-generic.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -34,6 +34,7 @@ static int ghash_setkey(struct crypto_sh
 			const u8 *key, unsigned int keylen)
 {
 	struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
+	be128 k;
 
 	if (keylen != GHASH_BLOCK_SIZE) {
 		crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
@@ -42,7 +43,12 @@ static int ghash_setkey(struct crypto_sh
 
 	if (ctx->gf128)
 		gf128mul_free_4k(ctx->gf128);
-	ctx->gf128 = gf128mul_init_4k_lle((be128 *)key);
+
+	BUILD_BUG_ON(sizeof(k) != GHASH_BLOCK_SIZE);
+	memcpy(&k, key, GHASH_BLOCK_SIZE); /* avoid violating alignment rules */
+	ctx->gf128 = gf128mul_init_4k_lle(&k);
+	memzero_explicit(&k, GHASH_BLOCK_SIZE);
+
 	if (!ctx->gf128)
 		return -ENOMEM;
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 120/293] crypto: ccp - Validate the the error value used to index error messages
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (118 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 119/293] crypto: ghash - fix unaligned memory access in ghash_setkey() Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 121/293] crypto: arm64/sha1-ce - correct digest for empty data in finup Greg Kroah-Hartman
                   ` (178 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Cfir Cohen, Gary R Hook, Herbert Xu

From: Hook, Gary <Gary.Hook@amd.com>

commit 52393d617af7b554f03531e6756facf2ea687d2e upstream.

The error code read from the queue status register is only 6 bits wide,
but we need to verify its value is within range before indexing the error
messages.

Fixes: 81422badb3907 ("crypto: ccp - Make syslog errors human-readable")
Cc: <stable@vger.kernel.org>
Reported-by: Cfir Cohen <cfir@google.com>
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/ccp/ccp-dev.c |   96 ++++++++++++++++++++++---------------------
 drivers/crypto/ccp/ccp-dev.h |    2 
 2 files changed, 52 insertions(+), 46 deletions(-)

--- a/drivers/crypto/ccp/ccp-dev.c
+++ b/drivers/crypto/ccp/ccp-dev.c
@@ -35,56 +35,62 @@ struct ccp_tasklet_data {
 };
 
 /* Human-readable error strings */
+#define CCP_MAX_ERROR_CODE	64
 static char *ccp_error_codes[] = {
 	"",
-	"ERR 01: ILLEGAL_ENGINE",
-	"ERR 02: ILLEGAL_KEY_ID",
-	"ERR 03: ILLEGAL_FUNCTION_TYPE",
-	"ERR 04: ILLEGAL_FUNCTION_MODE",
-	"ERR 05: ILLEGAL_FUNCTION_ENCRYPT",
-	"ERR 06: ILLEGAL_FUNCTION_SIZE",
-	"ERR 07: Zlib_MISSING_INIT_EOM",
-	"ERR 08: ILLEGAL_FUNCTION_RSVD",
-	"ERR 09: ILLEGAL_BUFFER_LENGTH",
-	"ERR 10: VLSB_FAULT",
-	"ERR 11: ILLEGAL_MEM_ADDR",
-	"ERR 12: ILLEGAL_MEM_SEL",
-	"ERR 13: ILLEGAL_CONTEXT_ID",
-	"ERR 14: ILLEGAL_KEY_ADDR",
-	"ERR 15: 0xF Reserved",
-	"ERR 16: Zlib_ILLEGAL_MULTI_QUEUE",
-	"ERR 17: Zlib_ILLEGAL_JOBID_CHANGE",
-	"ERR 18: CMD_TIMEOUT",
-	"ERR 19: IDMA0_AXI_SLVERR",
-	"ERR 20: IDMA0_AXI_DECERR",
-	"ERR 21: 0x15 Reserved",
-	"ERR 22: IDMA1_AXI_SLAVE_FAULT",
-	"ERR 23: IDMA1_AIXI_DECERR",
-	"ERR 24: 0x18 Reserved",
-	"ERR 25: ZLIBVHB_AXI_SLVERR",
-	"ERR 26: ZLIBVHB_AXI_DECERR",
-	"ERR 27: 0x1B Reserved",
-	"ERR 27: ZLIB_UNEXPECTED_EOM",
-	"ERR 27: ZLIB_EXTRA_DATA",
-	"ERR 30: ZLIB_BTYPE",
-	"ERR 31: ZLIB_UNDEFINED_SYMBOL",
-	"ERR 32: ZLIB_UNDEFINED_DISTANCE_S",
-	"ERR 33: ZLIB_CODE_LENGTH_SYMBOL",
-	"ERR 34: ZLIB _VHB_ILLEGAL_FETCH",
-	"ERR 35: ZLIB_UNCOMPRESSED_LEN",
-	"ERR 36: ZLIB_LIMIT_REACHED",
-	"ERR 37: ZLIB_CHECKSUM_MISMATCH0",
-	"ERR 38: ODMA0_AXI_SLVERR",
-	"ERR 39: ODMA0_AXI_DECERR",
-	"ERR 40: 0x28 Reserved",
-	"ERR 41: ODMA1_AXI_SLVERR",
-	"ERR 42: ODMA1_AXI_DECERR",
-	"ERR 43: LSB_PARITY_ERR",
+	"ILLEGAL_ENGINE",
+	"ILLEGAL_KEY_ID",
+	"ILLEGAL_FUNCTION_TYPE",
+	"ILLEGAL_FUNCTION_MODE",
+	"ILLEGAL_FUNCTION_ENCRYPT",
+	"ILLEGAL_FUNCTION_SIZE",
+	"Zlib_MISSING_INIT_EOM",
+	"ILLEGAL_FUNCTION_RSVD",
+	"ILLEGAL_BUFFER_LENGTH",
+	"VLSB_FAULT",
+	"ILLEGAL_MEM_ADDR",
+	"ILLEGAL_MEM_SEL",
+	"ILLEGAL_CONTEXT_ID",
+	"ILLEGAL_KEY_ADDR",
+	"0xF Reserved",
+	"Zlib_ILLEGAL_MULTI_QUEUE",
+	"Zlib_ILLEGAL_JOBID_CHANGE",
+	"CMD_TIMEOUT",
+	"IDMA0_AXI_SLVERR",
+	"IDMA0_AXI_DECERR",
+	"0x15 Reserved",
+	"IDMA1_AXI_SLAVE_FAULT",
+	"IDMA1_AIXI_DECERR",
+	"0x18 Reserved",
+	"ZLIBVHB_AXI_SLVERR",
+	"ZLIBVHB_AXI_DECERR",
+	"0x1B Reserved",
+	"ZLIB_UNEXPECTED_EOM",
+	"ZLIB_EXTRA_DATA",
+	"ZLIB_BTYPE",
+	"ZLIB_UNDEFINED_SYMBOL",
+	"ZLIB_UNDEFINED_DISTANCE_S",
+	"ZLIB_CODE_LENGTH_SYMBOL",
+	"ZLIB _VHB_ILLEGAL_FETCH",
+	"ZLIB_UNCOMPRESSED_LEN",
+	"ZLIB_LIMIT_REACHED",
+	"ZLIB_CHECKSUM_MISMATCH0",
+	"ODMA0_AXI_SLVERR",
+	"ODMA0_AXI_DECERR",
+	"0x28 Reserved",
+	"ODMA1_AXI_SLVERR",
+	"ODMA1_AXI_DECERR",
 };
 
-void ccp_log_error(struct ccp_device *d, int e)
+void ccp_log_error(struct ccp_device *d, unsigned int e)
 {
-	dev_err(d->dev, "CCP error: %s (0x%x)\n", ccp_error_codes[e], e);
+	if (WARN_ON(e >= CCP_MAX_ERROR_CODE))
+		return;
+
+	if (e < ARRAY_SIZE(ccp_error_codes))
+		dev_err(d->dev, "CCP error %d: %s\n", e, ccp_error_codes[e]);
+	else
+		dev_err(d->dev, "CCP error %d: Unknown Error\n", e);
 }
 
 /* List of CCPs, CCP count, read-write access lock, and access functions
--- a/drivers/crypto/ccp/ccp-dev.h
+++ b/drivers/crypto/ccp/ccp-dev.h
@@ -632,7 +632,7 @@ struct ccp5_desc {
 void ccp_add_device(struct ccp_device *ccp);
 void ccp_del_device(struct ccp_device *ccp);
 
-extern void ccp_log_error(struct ccp_device *, int);
+extern void ccp_log_error(struct ccp_device *, unsigned int);
 
 struct ccp_device *ccp_alloc_struct(struct sp_device *sp);
 bool ccp_queues_suspended(struct ccp_device *ccp);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 121/293] crypto: arm64/sha1-ce - correct digest for empty data in finup
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (119 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 120/293] crypto: ccp - Validate the the error value used to index error messages Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 122/293] crypto: arm64/sha2-ce " Greg Kroah-Hartman
                   ` (177 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Elena Petrova, Ard Biesheuvel, Herbert Xu

From: Elena Petrova <lenaptr@google.com>

commit 1d4aaf16defa86d2665ae7db0259d6cb07e2091f upstream.

The sha1-ce finup implementation for ARM64 produces wrong digest
for empty input (len=0). Expected: da39a3ee..., result: 67452301...
(initial value of SHA internal state). The error is in sha1_ce_finup:
for empty data `finalize` will be 1, so the code is relying on
sha1_ce_transform to make the final round. However, in
sha1_base_do_update, the block function will not be called when
len == 0.

Fix it by setting finalize to 0 if data is empty.

Fixes: 07eb54d306f4 ("crypto: arm64/sha1-ce - move SHA-1 ARMv8 implementation to base layer")
Cc: stable@vger.kernel.org
Signed-off-by: Elena Petrova <lenaptr@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/crypto/sha1-ce-glue.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/crypto/sha1-ce-glue.c
+++ b/arch/arm64/crypto/sha1-ce-glue.c
@@ -54,7 +54,7 @@ static int sha1_ce_finup(struct shash_de
 			 unsigned int len, u8 *out)
 {
 	struct sha1_ce_state *sctx = shash_desc_ctx(desc);
-	bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE);
+	bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE) && len;
 
 	if (!may_use_simd())
 		return crypto_sha1_finup(desc, data, len, out);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 122/293] crypto: arm64/sha2-ce - correct digest for empty data in finup
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (120 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 121/293] crypto: arm64/sha1-ce - correct digest for empty data in finup Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 123/293] crypto: chacha20poly1305 - fix atomic sleep when using async algorithm Greg Kroah-Hartman
                   ` (176 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Elena Petrova, Ard Biesheuvel, Herbert Xu

From: Elena Petrova <lenaptr@google.com>

commit 6bd934de1e393466b319d29c4427598fda096c57 upstream.

The sha256-ce finup implementation for ARM64 produces wrong digest
for empty input (len=0). Expected: the actual digest, result: initial
value of SHA internal state. The error is in sha256_ce_finup:
for empty data `finalize` will be 1, so the code is relying on
sha2_ce_transform to make the final round. However, in
sha256_base_do_update, the block function will not be called when
len == 0.

Fix it by setting finalize to 0 if data is empty.

Fixes: 03802f6a80b3a ("crypto: arm64/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer")
Cc: stable@vger.kernel.org
Signed-off-by: Elena Petrova <lenaptr@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/crypto/sha2-ce-glue.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/crypto/sha2-ce-glue.c
+++ b/arch/arm64/crypto/sha2-ce-glue.c
@@ -59,7 +59,7 @@ static int sha256_ce_finup(struct shash_
 			   unsigned int len, u8 *out)
 {
 	struct sha256_ce_state *sctx = shash_desc_ctx(desc);
-	bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE);
+	bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE) && len;
 
 	if (!may_use_simd()) {
 		if (len)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 123/293] crypto: chacha20poly1305 - fix atomic sleep when using async algorithm
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (121 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 122/293] crypto: arm64/sha2-ce " Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 124/293] crypto: ccp - memset structure fields to zero before reuse Greg Kroah-Hartman
                   ` (175 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Martin Willi, Eric Biggers, Herbert Xu

From: Eric Biggers <ebiggers@google.com>

commit 7545b6c2087f4ef0287c8c9b7eba6a728c67ff8e upstream.

Clear the CRYPTO_TFM_REQ_MAY_SLEEP flag when the chacha20poly1305
operation is being continued from an async completion callback, since
sleeping may not be allowed in that context.

This is basically the same bug that was recently fixed in the xts and
lrw templates.  But, it's always been broken in chacha20poly1305 too.
This was found using syzkaller in combination with the updated crypto
self-tests which actually test the MAY_SLEEP flag now.

Reproducer:

    python -c 'import socket; socket.socket(socket.AF_ALG, 5, 0).bind(
    	       ("aead", "rfc7539(cryptd(chacha20-generic),poly1305-generic)"))'

Kernel output:

    BUG: sleeping function called from invalid context at include/crypto/algapi.h:426
    in_atomic(): 1, irqs_disabled(): 0, pid: 1001, name: kworker/2:2
    [...]
    CPU: 2 PID: 1001 Comm: kworker/2:2 Not tainted 5.2.0-rc2 #5
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-20181126_142135-anatol 04/01/2014
    Workqueue: crypto cryptd_queue_worker
    Call Trace:
     __dump_stack lib/dump_stack.c:77 [inline]
     dump_stack+0x4d/0x6a lib/dump_stack.c:113
     ___might_sleep kernel/sched/core.c:6138 [inline]
     ___might_sleep.cold.19+0x8e/0x9f kernel/sched/core.c:6095
     crypto_yield include/crypto/algapi.h:426 [inline]
     crypto_hash_walk_done+0xd6/0x100 crypto/ahash.c:113
     shash_ahash_update+0x41/0x60 crypto/shash.c:251
     shash_async_update+0xd/0x10 crypto/shash.c:260
     crypto_ahash_update include/crypto/hash.h:539 [inline]
     poly_setkey+0xf6/0x130 crypto/chacha20poly1305.c:337
     poly_init+0x51/0x60 crypto/chacha20poly1305.c:364
     async_done_continue crypto/chacha20poly1305.c:78 [inline]
     poly_genkey_done+0x15/0x30 crypto/chacha20poly1305.c:369
     cryptd_skcipher_complete+0x29/0x70 crypto/cryptd.c:279
     cryptd_skcipher_decrypt+0xcd/0x110 crypto/cryptd.c:339
     cryptd_queue_worker+0x70/0xa0 crypto/cryptd.c:184
     process_one_work+0x1ed/0x420 kernel/workqueue.c:2269
     worker_thread+0x3e/0x3a0 kernel/workqueue.c:2415
     kthread+0x11f/0x140 kernel/kthread.c:255
     ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

Fixes: 71ebc4d1b27d ("crypto: chacha20poly1305 - Add a ChaCha20-Poly1305 AEAD construction, RFC7539")
Cc: <stable@vger.kernel.org> # v4.2+
Cc: Martin Willi <martin@strongswan.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 crypto/chacha20poly1305.c |   30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

--- a/crypto/chacha20poly1305.c
+++ b/crypto/chacha20poly1305.c
@@ -67,6 +67,8 @@ struct chachapoly_req_ctx {
 	unsigned int cryptlen;
 	/* Actual AD, excluding IV */
 	unsigned int assoclen;
+	/* request flags, with MAY_SLEEP cleared if needed */
+	u32 flags;
 	union {
 		struct poly_req poly;
 		struct chacha_req chacha;
@@ -76,8 +78,12 @@ struct chachapoly_req_ctx {
 static inline void async_done_continue(struct aead_request *req, int err,
 				       int (*cont)(struct aead_request *))
 {
-	if (!err)
+	if (!err) {
+		struct chachapoly_req_ctx *rctx = aead_request_ctx(req);
+
+		rctx->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
 		err = cont(req);
+	}
 
 	if (err != -EINPROGRESS && err != -EBUSY)
 		aead_request_complete(req, err);
@@ -144,7 +150,7 @@ static int chacha_decrypt(struct aead_re
 		dst = scatterwalk_ffwd(rctx->dst, req->dst, req->assoclen);
 	}
 
-	skcipher_request_set_callback(&creq->req, aead_request_flags(req),
+	skcipher_request_set_callback(&creq->req, rctx->flags,
 				      chacha_decrypt_done, req);
 	skcipher_request_set_tfm(&creq->req, ctx->chacha);
 	skcipher_request_set_crypt(&creq->req, src, dst,
@@ -188,7 +194,7 @@ static int poly_tail(struct aead_request
 	memcpy(&preq->tail.cryptlen, &len, sizeof(len));
 	sg_set_buf(preq->src, &preq->tail, sizeof(preq->tail));
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_tail_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src,
@@ -219,7 +225,7 @@ static int poly_cipherpad(struct aead_re
 	sg_init_table(preq->src, 1);
 	sg_set_buf(preq->src, &preq->pad, padlen);
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_cipherpad_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src, NULL, padlen);
@@ -250,7 +256,7 @@ static int poly_cipher(struct aead_reque
 	sg_init_table(rctx->src, 2);
 	crypt = scatterwalk_ffwd(rctx->src, crypt, req->assoclen);
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_cipher_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, crypt, NULL, rctx->cryptlen);
@@ -280,7 +286,7 @@ static int poly_adpad(struct aead_reques
 	sg_init_table(preq->src, 1);
 	sg_set_buf(preq->src, preq->pad, padlen);
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_adpad_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src, NULL, padlen);
@@ -304,7 +310,7 @@ static int poly_ad(struct aead_request *
 	struct poly_req *preq = &rctx->u.poly;
 	int err;
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_ad_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, req->src, NULL, rctx->assoclen);
@@ -331,7 +337,7 @@ static int poly_setkey(struct aead_reque
 	sg_init_table(preq->src, 1);
 	sg_set_buf(preq->src, rctx->key, sizeof(rctx->key));
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_setkey_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src, NULL, sizeof(rctx->key));
@@ -355,7 +361,7 @@ static int poly_init(struct aead_request
 	struct poly_req *preq = &rctx->u.poly;
 	int err;
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_init_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 
@@ -393,7 +399,7 @@ static int poly_genkey(struct aead_reque
 
 	chacha_iv(creq->iv, req, 0);
 
-	skcipher_request_set_callback(&creq->req, aead_request_flags(req),
+	skcipher_request_set_callback(&creq->req, rctx->flags,
 				      poly_genkey_done, req);
 	skcipher_request_set_tfm(&creq->req, ctx->chacha);
 	skcipher_request_set_crypt(&creq->req, creq->src, creq->src,
@@ -433,7 +439,7 @@ static int chacha_encrypt(struct aead_re
 		dst = scatterwalk_ffwd(rctx->dst, req->dst, req->assoclen);
 	}
 
-	skcipher_request_set_callback(&creq->req, aead_request_flags(req),
+	skcipher_request_set_callback(&creq->req, rctx->flags,
 				      chacha_encrypt_done, req);
 	skcipher_request_set_tfm(&creq->req, ctx->chacha);
 	skcipher_request_set_crypt(&creq->req, src, dst,
@@ -451,6 +457,7 @@ static int chachapoly_encrypt(struct aea
 	struct chachapoly_req_ctx *rctx = aead_request_ctx(req);
 
 	rctx->cryptlen = req->cryptlen;
+	rctx->flags = aead_request_flags(req);
 
 	/* encrypt call chain:
 	 * - chacha_encrypt/done()
@@ -472,6 +479,7 @@ static int chachapoly_decrypt(struct aea
 	struct chachapoly_req_ctx *rctx = aead_request_ctx(req);
 
 	rctx->cryptlen = req->cryptlen - POLY1305_DIGEST_SIZE;
+	rctx->flags = aead_request_flags(req);
 
 	/* decrypt call chain:
 	 * - poly_genkey/done()



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 124/293] crypto: ccp - memset structure fields to zero before reuse
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (122 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 123/293] crypto: chacha20poly1305 - fix atomic sleep when using async algorithm Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 125/293] crypto: ccp/gcm - use const time tag comparison Greg Kroah-Hartman
                   ` (174 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Gary R Hook, Herbert Xu

From: Hook, Gary <Gary.Hook@amd.com>

commit 20e833dc36355ed642d00067641a679c618303fa upstream.

The AES GCM function reuses an 'op' data structure, which members
contain values that must be cleared for each (re)use.

This fix resolves a crypto self-test failure:
alg: aead: gcm-aes-ccp encryption test failed (wrong result) on test vector 2, cfg="two even aligned splits"

Fixes: 36cf515b9bbe ("crypto: ccp - Enable support for AES GCM on v5 CCPs")
Cc: <stable@vger.kernel.org>
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/ccp/ccp-ops.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -612,6 +612,7 @@ static int ccp_run_aes_gcm_cmd(struct cc
 
 	unsigned long long *final;
 	unsigned int dm_offset;
+	unsigned int jobid;
 	unsigned int ilen;
 	bool in_place = true; /* Default value */
 	int ret;
@@ -650,9 +651,11 @@ static int ccp_run_aes_gcm_cmd(struct cc
 		p_tag = scatterwalk_ffwd(sg_tag, p_inp, ilen);
 	}
 
+	jobid = CCP_NEW_JOBID(cmd_q->ccp);
+
 	memset(&op, 0, sizeof(op));
 	op.cmd_q = cmd_q;
-	op.jobid = CCP_NEW_JOBID(cmd_q->ccp);
+	op.jobid = jobid;
 	op.sb_key = cmd_q->sb_key; /* Pre-allocated */
 	op.sb_ctx = cmd_q->sb_ctx; /* Pre-allocated */
 	op.init = 1;
@@ -797,6 +800,13 @@ static int ccp_run_aes_gcm_cmd(struct cc
 	final[0] = cpu_to_be64(aes->aad_len * 8);
 	final[1] = cpu_to_be64(ilen * 8);
 
+	memset(&op, 0, sizeof(op));
+	op.cmd_q = cmd_q;
+	op.jobid = jobid;
+	op.sb_key = cmd_q->sb_key; /* Pre-allocated */
+	op.sb_ctx = cmd_q->sb_ctx; /* Pre-allocated */
+	op.init = 1;
+	op.u.aes.type = aes->type;
 	op.u.aes.mode = CCP_AES_MODE_GHASH;
 	op.u.aes.action = CCP_AES_GHASHFINAL;
 	op.src.type = CCP_MEMTYPE_SYSTEM;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 125/293] crypto: ccp/gcm - use const time tag comparison.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (123 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 124/293] crypto: ccp - memset structure fields to zero before reuse Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 126/293] crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe Greg Kroah-Hartman
                   ` (173 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Cfir Cohen, Gary R Hook, Herbert Xu

From: Cfir Cohen <cfir@google.com>

commit 538a5a072e6ef04377b180ee9b3ce5bae0a85da4 upstream.

Avoid leaking GCM tag through timing side channel.

Fixes: 36cf515b9bbe ("crypto: ccp - Enable support for AES GCM on v5 CCPs")
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: Cfir Cohen <cfir@google.com>
Acked-by: Gary R Hook <ghook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/ccp/ccp-ops.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -832,7 +832,8 @@ static int ccp_run_aes_gcm_cmd(struct cc
 			goto e_tag;
 		ccp_set_dm_area(&tag, 0, p_tag, 0, AES_BLOCK_SIZE);
 
-		ret = memcmp(tag.address, final_wa.address, AES_BLOCK_SIZE);
+		ret = crypto_memneq(tag.address, final_wa.address,
+				    AES_BLOCK_SIZE) ? -EBADMSG : 0;
 		ccp_dm_free(&tag);
 	}
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 126/293] crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (124 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 125/293] crypto: ccp/gcm - use const time tag comparison Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 127/293] Input: gtco - bounds check collection indent level Greg Kroah-Hartman
                   ` (172 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Wen Yang, David S. Miller,
	Thomas Gleixner, Allison Randal, Armijn Hemel, Julia Lawall,
	linux-crypto, Julia Lawall, Herbert Xu

From: Wen Yang <wen.yang99@zte.com.cn>

commit 95566aa75cd6b3b404502c06f66956b5481194b3 upstream.

There is a possible double free issue in ppc4xx_trng_probe():

85:	dev->trng_base = of_iomap(trng, 0);
86:	of_node_put(trng);          ---> released here
87:	if (!dev->trng_base)
88:		goto err_out;
...
110:	ierr_out:
111:		of_node_put(trng);  ---> double released here
...

This issue was detected by using the Coccinelle software.
We fix it by removing the unnecessary of_node_put().

Fixes: 5343e674f32f ("crypto4xx: integrate ppc4xx-rng into crypto4xx")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: <stable@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Allison Randal <allison@lohutok.net>
Cc: Armijn Hemel <armijn@tjaldur.nl>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/amcc/crypto4xx_trng.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/crypto/amcc/crypto4xx_trng.c
+++ b/drivers/crypto/amcc/crypto4xx_trng.c
@@ -111,7 +111,6 @@ void ppc4xx_trng_probe(struct crypto4xx_
 	return;
 
 err_out:
-	of_node_put(trng);
 	iounmap(dev->trng_base);
 	kfree(rng);
 	dev->trng_base = NULL;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 127/293] Input: gtco - bounds check collection indent level
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (125 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 126/293] crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 128/293] Input: alps - dont handle ALPS cs19 trackpoint-only device Greg Kroah-Hartman
                   ` (171 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Grant Hernandez, Dmitry Torokhov

From: Grant Hernandez <granthernandez@google.com>

commit 2a017fd82c5402b3c8df5e3d6e5165d9e6147dc1 upstream.

The GTCO tablet input driver configures itself from an HID report sent
via USB during the initial enumeration process. Some debugging messages
are generated during the parsing. A debugging message indentation
counter is not bounds checked, leading to the ability for a specially
crafted HID report to cause '-' and null bytes be written past the end
of the indentation array. As long as the kernel has CONFIG_DYNAMIC_DEBUG
enabled, this code will not be optimized out.  This was discovered
during code review after a previous syzkaller bug was found in this
driver.

Signed-off-by: Grant Hernandez <granthernandez@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/tablet/gtco.c |   20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -78,6 +78,7 @@ Scott Hill shill@gtcocalcomp.com
 
 /* Max size of a single report */
 #define REPORT_MAX_SIZE       10
+#define MAX_COLLECTION_LEVELS  10
 
 
 /* Bitmask whether pen is in range */
@@ -223,8 +224,7 @@ static void parse_hid_report_descriptor(
 	char  maintype = 'x';
 	char  globtype[12];
 	int   indent = 0;
-	char  indentstr[10] = "";
-
+	char  indentstr[MAX_COLLECTION_LEVELS + 1] = { 0 };
 
 	dev_dbg(ddev, "======>>>>>>PARSE<<<<<<======\n");
 
@@ -350,6 +350,13 @@ static void parse_hid_report_descriptor(
 			case TAG_MAIN_COL_START:
 				maintype = 'S';
 
+				if (indent == MAX_COLLECTION_LEVELS) {
+					dev_err(ddev, "Collection level %d would exceed limit of %d\n",
+						indent + 1,
+						MAX_COLLECTION_LEVELS);
+					break;
+				}
+
 				if (data == 0) {
 					dev_dbg(ddev, "======>>>>>> Physical\n");
 					strcpy(globtype, "Physical");
@@ -369,8 +376,15 @@ static void parse_hid_report_descriptor(
 				break;
 
 			case TAG_MAIN_COL_END:
-				dev_dbg(ddev, "<<<<<<======\n");
 				maintype = 'E';
+
+				if (indent == 0) {
+					dev_err(ddev, "Collection level already at zero\n");
+					break;
+				}
+
+				dev_dbg(ddev, "<<<<<<======\n");
+
 				indent--;
 				for (x = 0; x < indent; x++)
 					indentstr[x] = '-';



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 128/293] Input: alps - dont handle ALPS cs19 trackpoint-only device
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (126 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 127/293] Input: gtco - bounds check collection indent level Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 129/293] Input: synaptics - whitelist Lenovo T580 SMBus intertouch Greg Kroah-Hartman
                   ` (170 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, XiaoXiao Liu, Hui Wang,
	Pali Rohár, Dmitry Torokhov

From: Hui Wang <hui.wang@canonical.com>

commit 7e4935ccc3236751e5fe4bd6846f86e46bb2e427 upstream.

On a latest Lenovo laptop, the trackpoint and 3 buttons below it
don't work at all, when we move the trackpoint or press those 3
buttons, the kernel will print out:
"Rejected trackstick packet from non DualPoint device"

This device is identified as an alps touchpad but the packet has
trackpoint format, so the alps.c drops the packet and prints out
the message above.

According to XiaoXiao's explanation, this device is named cs19 and
is trackpoint-only device, its firmware is only for trackpoint, it
is independent of touchpad and is a device completely different from
DualPoint ones.

To drive this device with mininal changes to the existing driver, we
just let the alps driver not handle this device, then the trackpoint.c
will be the driver of this device if the trackpoint driver is enabled.
(if not, this device will fallback to a bare PS/2 device)

With the trackpoint.c, this trackpoint and 3 buttons all work well,
they have all features that the trackpoint should have, like
scrolling-screen, drag-and-drop and frame-selection.

Signed-off-by: XiaoXiao Liu <sliuuxiaonxiao@gmail.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/mouse/alps.c |   32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -24,6 +24,7 @@
 
 #include "psmouse.h"
 #include "alps.h"
+#include "trackpoint.h"
 
 /*
  * Definitions for ALPS version 3 and 4 command mode protocol
@@ -2860,6 +2861,23 @@ static const struct alps_protocol_info *
 	return NULL;
 }
 
+static bool alps_is_cs19_trackpoint(struct psmouse *psmouse)
+{
+	u8 param[2] = { 0 };
+
+	if (ps2_command(&psmouse->ps2dev,
+			param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
+		return false;
+
+	/*
+	 * param[0] contains the trackpoint device variant_id while
+	 * param[1] contains the firmware_id. So far all alps
+	 * trackpoint-only devices have their variant_ids equal
+	 * TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range.
+	 */
+	return param[0] == TP_VARIANT_ALPS && (param[1] & 0x20);
+}
+
 static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 {
 	const struct alps_protocol_info *protocol;
@@ -3161,6 +3179,20 @@ int alps_detect(struct psmouse *psmouse,
 		return error;
 
 	/*
+	 * ALPS cs19 is a trackpoint-only device, and uses different
+	 * protocol than DualPoint ones, so we return -EINVAL here and let
+	 * trackpoint.c drive this device. If the trackpoint driver is not
+	 * enabled, the device will fall back to a bare PS/2 mouse.
+	 * If ps2_command() fails here, we depend on the immediately
+	 * followed psmouse_reset() to reset the device to normal state.
+	 */
+	if (alps_is_cs19_trackpoint(psmouse)) {
+		psmouse_dbg(psmouse,
+			    "ALPS CS19 trackpoint-only device detected, ignoring\n");
+		return -EINVAL;
+	}
+
+	/*
 	 * Reset the device to make sure it is fully operational:
 	 * on some laptops, like certain Dell Latitudes, we may
 	 * fail to properly detect presence of trackstick if device



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 129/293] Input: synaptics - whitelist Lenovo T580 SMBus intertouch
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (127 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 128/293] Input: alps - dont handle ALPS cs19 trackpoint-only device Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 130/293] Input: alps - fix a mismatch between a condition check and its comment Greg Kroah-Hartman
                   ` (169 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Nick Black, Dmitry Torokhov

From: Nick Black <dankamongmen@gmail.com>

commit 1976d7d200c5a32e72293a2ada36b7b7c9d6dd6e upstream.

Adds the Lenovo T580 to the SMBus intertouch list for Synaptics
touchpads. I've tested with this for a week now, and it seems a great
improvement. It's also nice to have the complaint gone from dmesg.

Signed-off-by: Nick Black <dankamongmen@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/mouse/synaptics.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -179,6 +179,7 @@ static const char * const smbus_pnp_ids[
 	"LEN0093", /* T480 */
 	"LEN0096", /* X280 */
 	"LEN0097", /* X280 -> ALPS trackpoint */
+	"LEN009b", /* T580 */
 	"LEN200f", /* T450s */
 	"LEN2054", /* E480 */
 	"LEN2055", /* E580 */



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 130/293] Input: alps - fix a mismatch between a condition check and its comment
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (128 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 129/293] Input: synaptics - whitelist Lenovo T580 SMBus intertouch Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 131/293] regulator: s2mps11: Fix buck7 and buck8 wrong voltages Greg Kroah-Hartman
                   ` (168 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hui Wang, Dmitry Torokhov

From: Hui Wang <hui.wang@canonical.com>

commit 771a081e44a9baa1991ef011cc453ef425591740 upstream.

In the function alps_is_cs19_trackpoint(), we check if the param[1] is
in the 0x20~0x2f range, but the code we wrote for this checking is not
correct:
(param[1] & 0x20) does not mean param[1] is in the range of 0x20~0x2f,
it also means the param[1] is in the range of 0x30~0x3f, 0x60~0x6f...

Now fix it with a new condition checking ((param[1] & 0xf0) == 0x20).

Fixes: 7e4935ccc323 ("Input: alps - don't handle ALPS cs19 trackpoint-only device")
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/mouse/alps.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2875,7 +2875,7 @@ static bool alps_is_cs19_trackpoint(stru
 	 * trackpoint-only devices have their variant_ids equal
 	 * TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range.
 	 */
-	return param[0] == TP_VARIANT_ALPS && (param[1] & 0x20);
+	return param[0] == TP_VARIANT_ALPS && ((param[1] & 0xf0) == 0x20);
 }
 
 static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 131/293] regulator: s2mps11: Fix buck7 and buck8 wrong voltages
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (129 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 130/293] Input: alps - fix a mismatch between a condition check and its comment Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 132/293] arm64: tegra: Update Jetson TX1 GPU regulator timings Greg Kroah-Hartman
                   ` (167 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Krzysztof Kozlowski, Mark Brown

From: Krzysztof Kozlowski <krzk@kernel.org>

commit 16da0eb5ab6ef2dd1d33431199126e63db9997cc upstream.

On S2MPS11 device, the buck7 and buck8 regulator voltages start at 750
mV, not 600 mV.  Using wrong minimal value caused shifting of these
regulator values by 150 mV (e.g. buck7 usually configured to v1.35 V was
reported as 1.2 V).

On most of the boards these regulators are left in default state so this
was only affecting reported voltage.  However if any driver wanted to
change them, then effectively it would set voltage 150 mV higher than
intended.

Cc: <stable@vger.kernel.org>
Fixes: cb74685ecb39 ("regulator: s2mps11: Add samsung s2mps11 regulator driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/regulator/s2mps11.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -386,8 +386,8 @@ static const struct regulator_desc s2mps
 	regulator_desc_s2mps11_buck1_4(4),
 	regulator_desc_s2mps11_buck5,
 	regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
-	regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV),
-	regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(7, MIN_750_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(8, MIN_750_MV, STEP_12_5_MV),
 	regulator_desc_s2mps11_buck9,
 	regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
 };



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 132/293] arm64: tegra: Update Jetson TX1 GPU regulator timings
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (130 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 131/293] regulator: s2mps11: Fix buck7 and buck8 wrong voltages Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 133/293] iwlwifi: pcie: dont service an interrupt that was masked Greg Kroah-Hartman
                   ` (166 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jon Hunter, Thierry Reding

From: Jon Hunter <jonathanh@nvidia.com>

commit ece6031ece2dd64d63708cfe1088016cee5b10c0 upstream.

The GPU regulator enable ramp delay for Jetson TX1 is set to 1ms which
not sufficient because the enable ramp delay has been measured to be
greater than 1ms. Furthermore, the downstream kernels released by NVIDIA
for Jetson TX1 are using a enable ramp delay 2ms and a settling delay of
160us. Update the GPU regulator enable ramp delay for Jetson TX1 to be
2ms and add a settling delay of 160us.

Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: 5e6b9a89afce ("arm64: tegra: Add VDD_GPU regulator to Jetson TX1")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -307,7 +307,8 @@
 			regulator-max-microvolt = <1320000>;
 			enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>;
 			regulator-ramp-delay = <80>;
-			regulator-enable-ramp-delay = <1000>;
+			regulator-enable-ramp-delay = <2000>;
+			regulator-settling-time-us = <160>;
 		};
 	};
 };



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 133/293] iwlwifi: pcie: dont service an interrupt that was masked
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (131 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 132/293] arm64: tegra: Update Jetson TX1 GPU regulator timings Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 134/293] iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X Greg Kroah-Hartman
                   ` (165 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Emmanuel Grumbach, Luca Coelho

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

commit 3b57a10ca14c619707398dc58fe5ece18c95b20b upstream.

Sometimes the register status can include interrupts that
were masked. We can, for example, get the RF-Kill bit set
in the interrupt status register although this interrupt
was masked. Then if we get the ALIVE interrupt (for example)
that was not masked, we need to *not* service the RF-Kill
interrupt.
Fix this in the MSI-X interrupt handler.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c |   27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -1956,10 +1956,18 @@ irqreturn_t iwl_pcie_irq_msix_handler(in
 		return IRQ_NONE;
 	}
 
-	if (iwl_have_debug_level(IWL_DL_ISR))
-		IWL_DEBUG_ISR(trans, "ISR inta_fh 0x%08x, enabled 0x%08x\n",
-			      inta_fh,
+	if (iwl_have_debug_level(IWL_DL_ISR)) {
+		IWL_DEBUG_ISR(trans,
+			      "ISR inta_fh 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n",
+			      inta_fh, trans_pcie->fh_mask,
 			      iwl_read32(trans, CSR_MSIX_FH_INT_MASK_AD));
+		if (inta_fh & ~trans_pcie->fh_mask)
+			IWL_DEBUG_ISR(trans,
+				      "We got a masked interrupt (0x%08x)\n",
+				      inta_fh & ~trans_pcie->fh_mask);
+	}
+
+	inta_fh &= trans_pcie->fh_mask;
 
 	if ((trans_pcie->shared_vec_mask & IWL_SHARED_IRQ_NON_RX) &&
 	    inta_fh & MSIX_FH_INT_CAUSES_Q0) {
@@ -1998,11 +2006,18 @@ irqreturn_t iwl_pcie_irq_msix_handler(in
 	}
 
 	/* After checking FH register check HW register */
-	if (iwl_have_debug_level(IWL_DL_ISR))
+	if (iwl_have_debug_level(IWL_DL_ISR)) {
 		IWL_DEBUG_ISR(trans,
-			      "ISR inta_hw 0x%08x, enabled 0x%08x\n",
-			      inta_hw,
+			      "ISR inta_hw 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n",
+			      inta_hw, trans_pcie->hw_mask,
 			      iwl_read32(trans, CSR_MSIX_HW_INT_MASK_AD));
+		if (inta_hw & ~trans_pcie->hw_mask)
+			IWL_DEBUG_ISR(trans,
+				      "We got a masked interrupt 0x%08x\n",
+				      inta_hw & ~trans_pcie->hw_mask);
+	}
+
+	inta_hw &= trans_pcie->hw_mask;
 
 	/* Alive notification via Rx interrupt will do the real work */
 	if (inta_hw & MSIX_HW_INT_CAUSES_REG_ALIVE) {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 134/293] iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (132 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 133/293] iwlwifi: pcie: dont service an interrupt that was masked Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 135/293] NFSv4: Handle the special Linux file open access mode Greg Kroah-Hartman
                   ` (164 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Emmanuel Grumbach, Luca Coelho

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

commit ec46ae30245ecb41d73f8254613db07c653fb498 upstream.

We added code to restock the buffer upon ALIVE interrupt
when MSI-X is disabled. This was added as part of the context
info code. This code was added only if the ISR debug level
is set which is very unlikely to be related.
Move this code to run even when the ISR debug level is not
set.

Note that gen2 devices work with MSI-X in most cases so that
this path is seldom used.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c |   34 ++++++++++++---------------
 1 file changed, 16 insertions(+), 18 deletions(-)

--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -1674,25 +1674,23 @@ irqreturn_t iwl_pcie_irq_handler(int irq
 		goto out;
 	}
 
-	if (iwl_have_debug_level(IWL_DL_ISR)) {
-		/* NIC fires this, but we don't use it, redundant with WAKEUP */
-		if (inta & CSR_INT_BIT_SCD) {
-			IWL_DEBUG_ISR(trans,
-				      "Scheduler finished to transmit the frame/frames.\n");
-			isr_stats->sch++;
-		}
+	/* NIC fires this, but we don't use it, redundant with WAKEUP */
+	if (inta & CSR_INT_BIT_SCD) {
+		IWL_DEBUG_ISR(trans,
+			      "Scheduler finished to transmit the frame/frames.\n");
+		isr_stats->sch++;
+	}
 
-		/* Alive notification via Rx interrupt will do the real work */
-		if (inta & CSR_INT_BIT_ALIVE) {
-			IWL_DEBUG_ISR(trans, "Alive interrupt\n");
-			isr_stats->alive++;
-			if (trans->cfg->gen2) {
-				/*
-				 * We can restock, since firmware configured
-				 * the RFH
-				 */
-				iwl_pcie_rxmq_restock(trans, trans_pcie->rxq);
-			}
+	/* Alive notification via Rx interrupt will do the real work */
+	if (inta & CSR_INT_BIT_ALIVE) {
+		IWL_DEBUG_ISR(trans, "Alive interrupt\n");
+		isr_stats->alive++;
+		if (trans->cfg->gen2) {
+			/*
+			 * We can restock, since firmware configured
+			 * the RFH
+			 */
+			iwl_pcie_rxmq_restock(trans, trans_pcie->rxq);
 		}
 	}
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 135/293] NFSv4: Handle the special Linux file open access mode
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (133 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 134/293] iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 136/293] pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error Greg Kroah-Hartman
                   ` (163 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Trond Myklebust

From: Trond Myklebust <trond.myklebust@hammerspace.com>

commit 44942b4e457beda00981f616402a1a791e8c616e upstream.

According to the open() manpage, Linux reserves the access mode 3
to mean "check for read and write permission on the file and return
a file descriptor that can't be used for reading or writing."

Currently, the NFSv4 code will ask the server to open the file,
and will use an incorrect share access mode of 0. Since it has
an incorrect share access mode, the client later forgets to send
a corresponding close, meaning it can leak stateids on the server.

Fixes: ce4ef7c0a8a05 ("NFS: Split out NFS v4 file operations")
Cc: stable@vger.kernel.org # 3.6+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/nfs/inode.c    |    1 +
 fs/nfs/nfs4file.c |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1034,6 +1034,7 @@ int nfs_open(struct inode *inode, struct
 	nfs_fscache_open_file(inode, filp);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(nfs_open);
 
 /*
  * This function is called whenever some part of NFS notices that
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -50,7 +50,7 @@ nfs4_file_open(struct inode *inode, stru
 		return err;
 
 	if ((openflags & O_ACCMODE) == 3)
-		openflags--;
+		return nfs_open(inode, filp);
 
 	/* We can't create new files here */
 	openflags &= ~(O_CREAT|O_EXCL);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 136/293] pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (134 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 135/293] NFSv4: Handle the special Linux file open access mode Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 137/293] lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE Greg Kroah-Hartman
                   ` (162 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Trond Myklebust

From: Trond Myklebust <trond.myklebust@hammerspace.com>

commit 8e04fdfadda75a849c649f7e50fe7d97772e1fcb upstream.

mirror->mirror_ds can be NULL if uninitialised, but can contain
a PTR_ERR() if call to GETDEVICEINFO failed.

Fixes: 65990d1afbd2 ("pNFS/flexfiles: Fix a deadlock on LAYOUTGET")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # 4.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/nfs/flexfilelayout/flexfilelayoutdev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -306,7 +306,7 @@ int ff_layout_track_ds_error(struct nfs4
 	if (status == 0)
 		return 0;
 
-	if (mirror->mirror_ds == NULL)
+	if (IS_ERR_OR_NULL(mirror->mirror_ds))
 		return -EINVAL;
 
 	dserr = kmalloc(sizeof(*dserr), gfp_flags);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 137/293] lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (135 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 136/293] pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 138/293] ASoC: dapm: Adapt for debugfs API change Greg Kroah-Hartman
                   ` (161 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Christophe Leroy, Herbert Xu

From: Christophe Leroy <christophe.leroy@c-s.fr>

commit aeb87246537a83c2aff482f3f34a2e0991e02cbc upstream.

All mapping iterator logic is based on the assumption that sg->offset
is always lower than PAGE_SIZE.

But there are situations where sg->offset is such that the SG item
is on the second page. In that case sg_copy_to_buffer() fails
properly copying the data into the buffer. One of the reason is
that the data will be outside the kmapped area used to access that
data.

This patch fixes the issue by adjusting the mapping iterator
offset and pgoffset fields such that offset is always lower than
PAGE_SIZE.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 4225fc8555a9 ("lib/scatterlist: use page iterator in the mapping iterator")
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 lib/scatterlist.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -496,17 +496,18 @@ static bool sg_miter_get_next_page(struc
 {
 	if (!miter->__remaining) {
 		struct scatterlist *sg;
-		unsigned long pgoffset;
 
 		if (!__sg_page_iter_next(&miter->piter))
 			return false;
 
 		sg = miter->piter.sg;
-		pgoffset = miter->piter.sg_pgoffset;
 
-		miter->__offset = pgoffset ? 0 : sg->offset;
+		miter->__offset = miter->piter.sg_pgoffset ? 0 : sg->offset;
+		miter->piter.sg_pgoffset += miter->__offset >> PAGE_SHIFT;
+		miter->__offset &= PAGE_SIZE - 1;
 		miter->__remaining = sg->offset + sg->length -
-				(pgoffset << PAGE_SHIFT) - miter->__offset;
+				     (miter->piter.sg_pgoffset << PAGE_SHIFT) -
+				     miter->__offset;
 		miter->__remaining = min_t(unsigned long, miter->__remaining,
 					   PAGE_SIZE - miter->__offset);
 	}



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 138/293] ASoC: dapm: Adapt for debugfs API change
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (136 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 137/293] lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 139/293] ALSA: seq: Break too long mutex context in the write loop Greg Kroah-Hartman
                   ` (160 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Mark Brown

From: Mark Brown <broonie@kernel.org>

commit ceaea851b9ea75f9ea2bbefb53ff0d4b27cd5a6e upstream.

Back in ff9fb72bc07705c (debugfs: return error values, not NULL) the
debugfs APIs were changed to return error pointers rather than NULL
pointers on error, breaking the error checking in ASoC. Update the
code to use IS_ERR() and log the codes that are returned as part of
the error messages.

Fixes: ff9fb72bc07705c (debugfs: return error values, not NULL)
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/soc-dapm.c |   18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2120,23 +2120,25 @@ void snd_soc_dapm_debugfs_init(struct sn
 {
 	struct dentry *d;
 
-	if (!parent)
+	if (!parent || IS_ERR(parent))
 		return;
 
 	dapm->debugfs_dapm = debugfs_create_dir("dapm", parent);
 
-	if (!dapm->debugfs_dapm) {
+	if (IS_ERR(dapm->debugfs_dapm)) {
 		dev_warn(dapm->dev,
-		       "ASoC: Failed to create DAPM debugfs directory\n");
+			 "ASoC: Failed to create DAPM debugfs directory %ld\n",
+			 PTR_ERR(dapm->debugfs_dapm));
 		return;
 	}
 
 	d = debugfs_create_file("bias_level", 0444,
 				dapm->debugfs_dapm, dapm,
 				&dapm_bias_fops);
-	if (!d)
+	if (IS_ERR(d))
 		dev_warn(dapm->dev,
-			 "ASoC: Failed to create bias level debugfs file\n");
+			 "ASoC: Failed to create bias level debugfs file: %ld\n",
+			 PTR_ERR(d));
 }
 
 static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
@@ -2150,10 +2152,10 @@ static void dapm_debugfs_add_widget(stru
 	d = debugfs_create_file(w->name, 0444,
 				dapm->debugfs_dapm, w,
 				&dapm_widget_power_fops);
-	if (!d)
+	if (IS_ERR(d))
 		dev_warn(w->dapm->dev,
-			"ASoC: Failed to create %s debugfs file\n",
-			w->name);
+			 "ASoC: Failed to create %s debugfs file: %ld\n",
+			 w->name, PTR_ERR(d));
 }
 
 static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 139/293] ALSA: seq: Break too long mutex context in the write loop
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (137 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 138/293] ASoC: dapm: Adapt for debugfs API change Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 140/293] ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine Greg Kroah-Hartman
                   ` (159 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+97aae04ce27e39cbfca9,
	syzbot+4c595632b98bb8ffcc66, Takashi Iwai

From: Takashi Iwai <tiwai@suse.de>

commit ede34f397ddb063b145b9e7d79c6026f819ded13 upstream.

The fix for the racy writes and ioctls to sequencer widened the
application of client->ioctl_mutex to the whole write loop.  Although
it does unlock/relock for the lengthy operation like the event dup,
the loop keeps the ioctl_mutex for the whole time in other
situations.  This may take quite long time if the user-space would
give a huge buffer, and this is a likely cause of some weird behavior
spotted by syzcaller fuzzer.

This patch puts a simple workaround, just adding a mutex break in the
loop when a large number of events have been processed.  This
shouldn't hit any performance drop because the threshold is set high
enough for usual operations.

Fixes: 7bd800915677 ("ALSA: seq: More protection for concurrent write and ioctl races")
Reported-by: syzbot+97aae04ce27e39cbfca9@syzkaller.appspotmail.com
Reported-by: syzbot+4c595632b98bb8ffcc66@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/core/seq/seq_clientmgr.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -1001,7 +1001,7 @@ static ssize_t snd_seq_write(struct file
 {
 	struct snd_seq_client *client = file->private_data;
 	int written = 0, len;
-	int err;
+	int err, handled;
 	struct snd_seq_event event;
 
 	if (!(snd_seq_file_flags(file) & SNDRV_SEQ_LFLG_OUTPUT))
@@ -1014,6 +1014,8 @@ static ssize_t snd_seq_write(struct file
 	if (!client->accept_output || client->pool == NULL)
 		return -ENXIO;
 
+ repeat:
+	handled = 0;
 	/* allocate the pool now if the pool is not allocated yet */ 
 	mutex_lock(&client->ioctl_mutex);
 	if (client->pool->size > 0 && !snd_seq_write_pool_allocated(client)) {
@@ -1073,12 +1075,19 @@ static ssize_t snd_seq_write(struct file
 						   0, 0, &client->ioctl_mutex);
 		if (err < 0)
 			break;
+		handled++;
 
 	__skip_event:
 		/* Update pointers and counts */
 		count -= len;
 		buf += len;
 		written += len;
+
+		/* let's have a coffee break if too many events are queued */
+		if (++handled >= 200) {
+			mutex_unlock(&client->ioctl_mutex);
+			goto repeat;
+		}
 	}
 
  out:



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 140/293] ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (138 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 139/293] ALSA: seq: Break too long mutex context in the write loop Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 141/293] media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom() Greg Kroah-Hartman
                   ` (158 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hui Wang, Takashi Iwai

From: Hui Wang <hui.wang@canonical.com>

commit 4b4e0e32e4b09274dbc9d173016c1a026f44608c upstream.

Without this patch, the headset-mic and headphone-mic don't work.

Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/pci/hda/patch_realtek.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8149,6 +8149,11 @@ static const struct snd_hda_pin_quirk al
 		{0x18, 0x01a19030},
 		{0x1a, 0x01813040},
 		{0x21, 0x01014020}),
+	SND_HDA_PIN_QUIRK(0x10ec0867, 0x1028, "Dell", ALC891_FIXUP_DELL_MIC_NO_PRESENCE,
+		{0x16, 0x01813030},
+		{0x17, 0x02211010},
+		{0x18, 0x01a19040},
+		{0x21, 0x01014020}),
 	SND_HDA_PIN_QUIRK(0x10ec0662, 0x1028, "Dell", ALC662_FIXUP_DELL_MIC_NO_PRESENCE,
 		{0x14, 0x01014010},
 		{0x18, 0x01a19020},



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 141/293] media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (139 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 140/293] ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 142/293] media: coda: Remove unbalanced and unneeded mutex unlock Greg Kroah-Hartman
                   ` (157 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Boris Brezillon, Hans Verkuil,
	Mauro Carvalho Chehab

From: Boris Brezillon <boris.brezillon@collabora.com>

commit 07d89227a983df957a6a7c56f7c040cde9ac571f upstream.

cfg->type can be overridden by v4l2_ctrl_fill() and the new value is
stored in the local type var. Fix the tests to use this local var.

Fixes: 0996517cf8ea ("V4L/DVB: v4l2: Add new control handling framework")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
[hverkuil-cisco@xs4all.nl: change to !qmenu and !qmenu_int (checkpatch)]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/v4l2-core/v4l2-ctrls.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -2113,16 +2113,15 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(s
 		v4l2_ctrl_fill(cfg->id, &name, &type, &min, &max, &step,
 								&def, &flags);
 
-	is_menu = (cfg->type == V4L2_CTRL_TYPE_MENU ||
-		   cfg->type == V4L2_CTRL_TYPE_INTEGER_MENU);
+	is_menu = (type == V4L2_CTRL_TYPE_MENU ||
+		   type == V4L2_CTRL_TYPE_INTEGER_MENU);
 	if (is_menu)
 		WARN_ON(step);
 	else
 		WARN_ON(cfg->menu_skip_mask);
-	if (cfg->type == V4L2_CTRL_TYPE_MENU && qmenu == NULL)
+	if (type == V4L2_CTRL_TYPE_MENU && !qmenu) {
 		qmenu = v4l2_ctrl_get_menu(cfg->id);
-	else if (cfg->type == V4L2_CTRL_TYPE_INTEGER_MENU &&
-		 qmenu_int == NULL) {
+	} else if (type == V4L2_CTRL_TYPE_INTEGER_MENU && !qmenu_int) {
 		handler_set_err(hdl, -EINVAL);
 		return NULL;
 	}



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 142/293] media: coda: Remove unbalanced and unneeded mutex unlock
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (140 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 141/293] media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom() Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 143/293] KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed Greg Kroah-Hartman
                   ` (156 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Philipp Zabel, Ezequiel Garcia,
	Hans Verkuil, Mauro Carvalho Chehab

From: Ezequiel Garcia <ezequiel@collabora.com>

commit 766b9b168f6c75c350dd87c3e0bc6a9b322f0013 upstream.

The mutex unlock in the threaded interrupt handler is not paired
with any mutex lock. Remove it.

This bug has been here for a really long time, so it applies
to any stable repo.

Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/platform/coda/coda-bit.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -2257,7 +2257,6 @@ irqreturn_t coda_irq_handler(int irq, vo
 	if (ctx == NULL) {
 		v4l2_err(&dev->v4l2_dev,
 			 "Instance released before the end of transaction\n");
-		mutex_unlock(&dev->coda_mutex);
 		return IRQ_HANDLED;
 	}
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 143/293] KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (141 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 142/293] media: coda: Remove unbalanced and unneeded mutex unlock Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 144/293] arm64: tegra: Fix AGIC register range Greg Kroah-Hartman
                   ` (155 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Joe Perches, Like Xu, Paolo Bonzini

From: Like Xu <like.xu@linux.intel.com>

commit 6fc3977ccc5d3c22e851f2dce2d3ce2a0a843842 upstream.

If a perf_event creation fails due to any reason of the host perf
subsystem, it has no chance to log the corresponding event for guest
which may cause abnormal sampling data in guest result. In debug mode,
this message helps to understand the state of vPMC and we may not
limit the number of occurrences but not in a spamming style.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Like Xu <like.xu@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/kvm/pmu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -131,8 +131,8 @@ static void pmc_reprogram_counter(struct
 						 intr ? kvm_perf_overflow_intr :
 						 kvm_perf_overflow, pmc);
 	if (IS_ERR(event)) {
-		printk_once("kvm_pmu: event creation failed %ld\n",
-			    PTR_ERR(event));
+		pr_debug_ratelimited("kvm_pmu: event creation failed %ld for pmc->idx = %d\n",
+			    PTR_ERR(event), pmc->idx);
 		return;
 	}
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 144/293] arm64: tegra: Fix AGIC register range
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (142 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 143/293] KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 145/293] fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes Greg Kroah-Hartman
                   ` (154 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jon Hunter, Thierry Reding

From: Jon Hunter <jonathanh@nvidia.com>

commit ba24eee6686f6ed3738602b54d959253316a9541 upstream.

The Tegra AGIC interrupt controller is an ARM GIC400 interrupt
controller. Per the ARM GIC device-tree binding, the first address
region is for the GIC distributor registers and the second address
region is for the GIC CPU interface registers. The address space for
the distributor registers is 4kB, but currently this is incorrectly
defined as 8kB for the Tegra AGIC and overlaps with the CPU interface
registers. Correct the address space for the distributor to be 4kB.

Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: bcdbde433542 ("arm64: tegra: Add AGIC node for Tegra210")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -1103,7 +1103,7 @@
 			compatible = "nvidia,tegra210-agic";
 			#interrupt-cells = <3>;
 			interrupt-controller;
-			reg = <0x702f9000 0x2000>,
+			reg = <0x702f9000 0x1000>,
 			      <0x702fa000 0x2000>;
 			interrupts = <GIC_SPI 102 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 			clocks = <&tegra_car TEGRA210_CLK_APE>;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 145/293] fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (143 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 144/293] arm64: tegra: Fix AGIC register range Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 146/293] drm/nouveau/i2c: Enable i2c pads & busses during preinit Greg Kroah-Hartman
                   ` (153 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Radoslaw Burny, Luis Chamberlain,
	Kees Cook, Eric W . Biederman, Seth Forshee, John Sperbeck,
	Alexey Dobriyan, Andrew Morton, Linus Torvalds

From: Radoslaw Burny <rburny@google.com>

commit 5ec27ec735ba0477d48c80561cc5e856f0c5dfaf upstream.

Normally, the inode's i_uid/i_gid are translated relative to s_user_ns,
but this is not a correct behavior for proc.  Since sysctl permission
check in test_perm is done against GLOBAL_ROOT_[UG]ID, it makes more
sense to use these values in u_[ug]id of proc inodes.  In other words:
although uid/gid in the inode is not read during test_perm, the inode
logically belongs to the root of the namespace.  I have confirmed this
with Eric Biederman at LPC and in this thread:
  https://lore.kernel.org/lkml/87k1kzjdff.fsf@xmission.com

Consequences
============

Since the i_[ug]id values of proc nodes are not used for permissions
checks, this change usually makes no functional difference.  However, it
causes an issue in a setup where:

 * a namespace container is created without root user in container -
   hence the i_[ug]id of proc nodes are set to INVALID_[UG]ID

 * container creator tries to configure it by writing /proc/sys files,
   e.g. writing /proc/sys/kernel/shmmax to configure shared memory limit

Kernel does not allow to open an inode for writing if its i_[ug]id are
invalid, making it impossible to write shmmax and thus - configure the
container.

Using a container with no root mapping is apparently rare, but we do use
this configuration at Google.  Also, we use a generic tool to configure
the container limits, and the inability to write any of them causes a
failure.

History
=======

The invalid uids/gids in inodes first appeared due to 81754357770e (fs:
Update i_[ug]id_(read|write) to translate relative to s_user_ns).
However, AFAIK, this did not immediately cause any issues.  The
inability to write to these "invalid" inodes was only caused by a later
commit 0bd23d09b874 (vfs: Don't modify inodes with a uid or gid unknown
to the vfs).

Tested: Used a repro program that creates a user namespace without any
mapping and stat'ed /proc/$PID/root/proc/sys/kernel/shmmax from outside.
Before the change, it shows the overflow uid, with the change it's 0.
The overflow uid indicates that the uid in the inode is not correct and
thus it is not possible to open the file for writing.

Link: http://lkml.kernel.org/r/20190708115130.250149-1-rburny@google.com
Fixes: 0bd23d09b874 ("vfs: Don't modify inodes with a uid or gid unknown to the vfs")
Signed-off-by: Radoslaw Burny <rburny@google.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Seth Forshee <seth.forshee@canonical.com>
Cc: John Sperbeck <jsperbeck@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>	[4.8+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/proc/proc_sysctl.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -498,6 +498,10 @@ static struct inode *proc_sys_make_inode
 
 	if (root->set_ownership)
 		root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);
+	else {
+		inode->i_uid = GLOBAL_ROOT_UID;
+		inode->i_gid = GLOBAL_ROOT_GID;
+	}
 
 	return inode;
 }



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 146/293] drm/nouveau/i2c: Enable i2c pads & busses during preinit
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (144 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 145/293] fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 147/293] padata: use smp_mb in padata_reorder to avoid orphaned padata jobs Greg Kroah-Hartman
                   ` (152 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Lyude Paul, Marc Meledandri, Ben Skeggs

From: Lyude Paul <lyude@redhat.com>

commit 7cb95eeea6706c790571042a06782e378b2561ea upstream.

It turns out that while disabling i2c bus access from software when the
GPU is suspended was a step in the right direction with:

commit 342406e4fbba ("drm/nouveau/i2c: Disable i2c bus access after
->fini()")

We also ended up accidentally breaking the vbios init scripts on some
older Tesla GPUs, as apparently said scripts can actually use the i2c
bus. Since these scripts are executed before initializing any
subdevices, we end up failing to acquire access to the i2c bus which has
left a number of cards with their fan controllers uninitialized. Luckily
this doesn't break hardware - it just means the fan gets stuck at 100%.

This also means that we've always been using our i2c busses before
initializing them during the init scripts for older GPUs, we just didn't
notice it until we started preventing them from being used until init.
It's pretty impressive this never caused us any issues before!

So, fix this by initializing our i2c pad and busses during subdev
pre-init. We skip initializing aux busses during pre-init, as those are
guaranteed to only ever be used by nouveau for DP aux transactions.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Tested-by: Marc Meledandri <m.meledandri@gmail.com>
Fixes: 342406e4fbba ("drm/nouveau/i2c: Disable i2c bus access after ->fini()")
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
@@ -185,6 +185,25 @@ nvkm_i2c_fini(struct nvkm_subdev *subdev
 }
 
 static int
+nvkm_i2c_preinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+	struct nvkm_i2c_bus *bus;
+	struct nvkm_i2c_pad *pad;
+
+	/*
+	 * We init our i2c busses as early as possible, since they may be
+	 * needed by the vbios init scripts on some cards
+	 */
+	list_for_each_entry(pad, &i2c->pad, head)
+		nvkm_i2c_pad_init(pad);
+	list_for_each_entry(bus, &i2c->bus, head)
+		nvkm_i2c_bus_init(bus);
+
+	return 0;
+}
+
+static int
 nvkm_i2c_init(struct nvkm_subdev *subdev)
 {
 	struct nvkm_i2c *i2c = nvkm_i2c(subdev);
@@ -238,6 +257,7 @@ nvkm_i2c_dtor(struct nvkm_subdev *subdev
 static const struct nvkm_subdev_func
 nvkm_i2c = {
 	.dtor = nvkm_i2c_dtor,
+	.preinit = nvkm_i2c_preinit,
 	.init = nvkm_i2c_init,
 	.fini = nvkm_i2c_fini,
 	.intr = nvkm_i2c_intr,



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 147/293] padata: use smp_mb in padata_reorder to avoid orphaned padata jobs
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (145 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 146/293] drm/nouveau/i2c: Enable i2c pads & busses during preinit Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 148/293] dm zoned: fix zone state management race Greg Kroah-Hartman
                   ` (151 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Daniel Jordan, Andrea Parri,
	Boqun Feng, Herbert Xu, Paul E. McKenney, Peter Zijlstra,
	Steffen Klassert, linux-arch, linux-crypto

From: Daniel Jordan <daniel.m.jordan@oracle.com>

commit cf144f81a99d1a3928f90b0936accfd3f45c9a0a upstream.

Testing padata with the tcrypt module on a 5.2 kernel...

    # modprobe tcrypt alg="pcrypt(rfc4106(gcm(aes)))" type=3
    # modprobe tcrypt mode=211 sec=1

...produces this splat:

    INFO: task modprobe:10075 blocked for more than 120 seconds.
          Not tainted 5.2.0-base+ #16
    modprobe        D    0 10075  10064 0x80004080
    Call Trace:
     ? __schedule+0x4dd/0x610
     ? ring_buffer_unlock_commit+0x23/0x100
     schedule+0x6c/0x90
     schedule_timeout+0x3b/0x320
     ? trace_buffer_unlock_commit_regs+0x4f/0x1f0
     wait_for_common+0x160/0x1a0
     ? wake_up_q+0x80/0x80
     { crypto_wait_req }             # entries in braces added by hand
     { do_one_aead_op }
     { test_aead_jiffies }
     test_aead_speed.constprop.17+0x681/0xf30 [tcrypt]
     do_test+0x4053/0x6a2b [tcrypt]
     ? 0xffffffffa00f4000
     tcrypt_mod_init+0x50/0x1000 [tcrypt]
     ...

The second modprobe command never finishes because in padata_reorder,
CPU0's load of reorder_objects is executed before the unlocking store in
spin_unlock_bh(pd->lock), causing CPU0 to miss CPU1's increment:

CPU0                                 CPU1

padata_reorder                       padata_do_serial
  LOAD reorder_objects  // 0
                                       INC reorder_objects  // 1
                                       padata_reorder
                                         TRYLOCK pd->lock   // failed
  UNLOCK pd->lock

CPU0 deletes the timer before returning from padata_reorder and since no
other job is submitted to padata, modprobe waits indefinitely.

Add a pair of full barriers to guarantee proper ordering:

CPU0                                 CPU1

padata_reorder                       padata_do_serial
  UNLOCK pd->lock
  smp_mb()
  LOAD reorder_objects
                                       INC reorder_objects
                                       smp_mb__after_atomic()
                                       padata_reorder
                                         TRYLOCK pd->lock

smp_mb__after_atomic is needed so the read part of the trylock operation
comes after the INC, as Andrea points out.   Thanks also to Andrea for
help with writing a litmus test.

Fixes: 16295bec6398 ("padata: Generic parallelization/serialization interface")
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: <stable@vger.kernel.org>
Cc: Andrea Parri <andrea.parri@amarulasolutions.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 kernel/padata.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -265,7 +265,12 @@ static void padata_reorder(struct parall
 	 * The next object that needs serialization might have arrived to
 	 * the reorder queues in the meantime, we will be called again
 	 * from the timer function if no one else cares for it.
+	 *
+	 * Ensure reorder_objects is read after pd->lock is dropped so we see
+	 * an increment from another task in padata_do_serial.  Pairs with
+	 * smp_mb__after_atomic in padata_do_serial.
 	 */
+	smp_mb();
 	if (atomic_read(&pd->reorder_objects)
 			&& !(pinst->flags & PADATA_RESET))
 		mod_timer(&pd->timer, jiffies + HZ);
@@ -334,6 +339,13 @@ void padata_do_serial(struct padata_priv
 	list_add_tail(&padata->list, &pqueue->reorder.list);
 	spin_unlock(&pqueue->reorder.lock);
 
+	/*
+	 * Ensure the atomic_inc of reorder_objects above is ordered correctly
+	 * with the trylock of pd->lock in padata_reorder.  Pairs with smp_mb
+	 * in padata_reorder.
+	 */
+	smp_mb__after_atomic();
+
 	put_cpu();
 
 	padata_reorder(pd);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 148/293] dm zoned: fix zone state management race
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (146 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 147/293] padata: use smp_mb in padata_reorder to avoid orphaned padata jobs Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 149/293] xen/events: fix binding user event channels to cpus Greg Kroah-Hartman
                   ` (150 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Masato Suzuki, Damien Le Moal, Mike Snitzer

From: Damien Le Moal <damien.lemoal@wdc.com>

commit 3b8cafdd5436f9298b3bf6eb831df5eef5ee82b6 upstream.

dm-zoned uses the zone flag DMZ_ACTIVE to indicate that a zone of the
backend device is being actively read or written and so cannot be
reclaimed. This flag is set as long as the zone atomic reference
counter is not 0. When this atomic is decremented and reaches 0 (e.g.
on BIO completion), the active flag is cleared and set again whenever
the zone is reused and BIO issued with the atomic counter incremented.
These 2 operations (atomic inc/dec and flag set/clear) are however not
always executed atomically under the target metadata mutex lock and
this causes the warning:

WARN_ON(!test_bit(DMZ_ACTIVE, &zone->flags));

in dmz_deactivate_zone() to be displayed. This problem is regularly
triggered with xfstests generic/209, generic/300, generic/451 and
xfs/077 with XFS being used as the file system on the dm-zoned target
device. Similarly, xfstests ext4/303, ext4/304, generic/209 and
generic/300 trigger the warning with ext4 use.

This problem can be easily fixed by simply removing the DMZ_ACTIVE flag
and managing the "ACTIVE" state by directly looking at the reference
counter value. To do so, the functions dmz_activate_zone() and
dmz_deactivate_zone() are changed to inline functions respectively
calling atomic_inc() and atomic_dec(), while the dmz_is_active() macro
is changed to an inline function calling atomic_read().

Fixes: 3b1a94c88b79 ("dm zoned: drive-managed zoned block device target")
Cc: stable@vger.kernel.org
Reported-by: Masato Suzuki <masato.suzuki@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/md/dm-zoned-metadata.c |   24 ------------------------
 drivers/md/dm-zoned.h          |   28 ++++++++++++++++++++++++----
 2 files changed, 24 insertions(+), 28 deletions(-)

--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1594,30 +1594,6 @@ struct dm_zone *dmz_get_zone_for_reclaim
 }
 
 /*
- * Activate a zone (increment its reference count).
- */
-void dmz_activate_zone(struct dm_zone *zone)
-{
-	set_bit(DMZ_ACTIVE, &zone->flags);
-	atomic_inc(&zone->refcount);
-}
-
-/*
- * Deactivate a zone. This decrement the zone reference counter
- * and clears the active state of the zone once the count reaches 0,
- * indicating that all BIOs to the zone have completed. Returns
- * true if the zone was deactivated.
- */
-void dmz_deactivate_zone(struct dm_zone *zone)
-{
-	if (atomic_dec_and_test(&zone->refcount)) {
-		WARN_ON(!test_bit(DMZ_ACTIVE, &zone->flags));
-		clear_bit_unlock(DMZ_ACTIVE, &zone->flags);
-		smp_mb__after_atomic();
-	}
-}
-
-/*
  * Get the zone mapping a chunk, if the chunk is mapped already.
  * If no mapping exist and the operation is WRITE, a zone is
  * allocated and used to map the chunk.
--- a/drivers/md/dm-zoned.h
+++ b/drivers/md/dm-zoned.h
@@ -115,7 +115,6 @@ enum {
 	DMZ_BUF,
 
 	/* Zone internal state */
-	DMZ_ACTIVE,
 	DMZ_RECLAIM,
 	DMZ_SEQ_WRITE_ERR,
 };
@@ -128,7 +127,6 @@ enum {
 #define dmz_is_empty(z)		((z)->wp_block == 0)
 #define dmz_is_offline(z)	test_bit(DMZ_OFFLINE, &(z)->flags)
 #define dmz_is_readonly(z)	test_bit(DMZ_READ_ONLY, &(z)->flags)
-#define dmz_is_active(z)	test_bit(DMZ_ACTIVE, &(z)->flags)
 #define dmz_in_reclaim(z)	test_bit(DMZ_RECLAIM, &(z)->flags)
 #define dmz_seq_write_err(z)	test_bit(DMZ_SEQ_WRITE_ERR, &(z)->flags)
 
@@ -188,8 +186,30 @@ void dmz_unmap_zone(struct dmz_metadata
 unsigned int dmz_nr_rnd_zones(struct dmz_metadata *zmd);
 unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd);
 
-void dmz_activate_zone(struct dm_zone *zone);
-void dmz_deactivate_zone(struct dm_zone *zone);
+/*
+ * Activate a zone (increment its reference count).
+ */
+static inline void dmz_activate_zone(struct dm_zone *zone)
+{
+	atomic_inc(&zone->refcount);
+}
+
+/*
+ * Deactivate a zone. This decrement the zone reference counter
+ * indicating that all BIOs to the zone have completed when the count is 0.
+ */
+static inline void dmz_deactivate_zone(struct dm_zone *zone)
+{
+	atomic_dec(&zone->refcount);
+}
+
+/*
+ * Test if a zone is active, that is, has a refcount > 0.
+ */
+static inline bool dmz_is_active(struct dm_zone *zone)
+{
+	return atomic_read(&zone->refcount);
+}
 
 int dmz_lock_zone_reclaim(struct dm_zone *zone);
 void dmz_unlock_zone_reclaim(struct dm_zone *zone);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 149/293] xen/events: fix binding user event channels to cpus
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (147 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 148/293] dm zoned: fix zone state management race Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 150/293] 9p/xen: Add cleanup path in p9_trans_xen_init Greg Kroah-Hartman
                   ` (149 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Juergen Gross, Boris Ostrovsky

From: Juergen Gross <jgross@suse.com>

commit bce5963bcb4f9934faa52be323994511d59fd13c upstream.

When binding an interdomain event channel to a vcpu via
IOCTL_EVTCHN_BIND_INTERDOMAIN not only the event channel needs to be
bound, but the affinity of the associated IRQi must be changed, too.
Otherwise the IRQ and the event channel won't be moved to another vcpu
in case the original vcpu they were bound to is going offline.

Cc: <stable@vger.kernel.org> # 4.13
Fixes: c48f64ab472389df ("xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/xen/events/events_base.c |   12 ++++++++++--
 drivers/xen/evtchn.c             |    2 +-
 include/xen/events.h             |    3 ++-
 3 files changed, 13 insertions(+), 4 deletions(-)

--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -1293,7 +1293,7 @@ void rebind_evtchn_irq(int evtchn, int i
 }
 
 /* Rebind an evtchn so that it gets delivered to a specific cpu */
-int xen_rebind_evtchn_to_cpu(int evtchn, unsigned tcpu)
+static int xen_rebind_evtchn_to_cpu(int evtchn, unsigned int tcpu)
 {
 	struct evtchn_bind_vcpu bind_vcpu;
 	int masked;
@@ -1327,7 +1327,6 @@ int xen_rebind_evtchn_to_cpu(int evtchn,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(xen_rebind_evtchn_to_cpu);
 
 static int set_affinity_irq(struct irq_data *data, const struct cpumask *dest,
 			    bool force)
@@ -1341,6 +1340,15 @@ static int set_affinity_irq(struct irq_d
 	return ret;
 }
 
+/* To be called with desc->lock held. */
+int xen_set_affinity_evtchn(struct irq_desc *desc, unsigned int tcpu)
+{
+	struct irq_data *d = irq_desc_get_irq_data(desc);
+
+	return set_affinity_irq(d, cpumask_of(tcpu), false);
+}
+EXPORT_SYMBOL_GPL(xen_set_affinity_evtchn);
+
 static void enable_dynirq(struct irq_data *data)
 {
 	int evtchn = evtchn_from_irq(data->irq);
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -447,7 +447,7 @@ static void evtchn_bind_interdom_next_vc
 	this_cpu_write(bind_last_selected_cpu, selected_cpu);
 
 	/* unmask expects irqs to be disabled */
-	xen_rebind_evtchn_to_cpu(evtchn, selected_cpu);
+	xen_set_affinity_evtchn(desc, selected_cpu);
 	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -3,6 +3,7 @@
 #define _XEN_EVENTS_H
 
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 #ifdef CONFIG_PCI_MSI
 #include <linux/msi.h>
 #endif
@@ -59,7 +60,7 @@ void evtchn_put(unsigned int evtchn);
 
 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
 void rebind_evtchn_irq(int evtchn, int irq);
-int xen_rebind_evtchn_to_cpu(int evtchn, unsigned tcpu);
+int xen_set_affinity_evtchn(struct irq_desc *desc, unsigned int tcpu);
 
 static inline void notify_remote_via_evtchn(int port)
 {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 150/293] 9p/xen: Add cleanup path in p9_trans_xen_init
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (148 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 149/293] xen/events: fix binding user event channels to cpus Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 151/293] 9p/virtio: Add cleanup path in p9_virtio_init Greg Kroah-Hartman
                   ` (148 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, YueHaibing, Dominique Martinet

From: YueHaibing <yuehaibing@huawei.com>

commit 80a316ff16276b36d0392a8f8b2f63259857ae98 upstream.

If xenbus_register_frontend() fails in p9_trans_xen_init,
we should call v9fs_unregister_trans() to do cleanup.

Link: http://lkml.kernel.org/r/20190430143933.19368-1-yuehaibing@huawei.com
Cc: stable@vger.kernel.org
Fixes: 868eb122739a ("xen/9pfs: introduce Xen 9pfs transport driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/9p/trans_xen.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/net/9p/trans_xen.c
+++ b/net/9p/trans_xen.c
@@ -530,13 +530,19 @@ static struct xenbus_driver xen_9pfs_fro
 
 static int p9_trans_xen_init(void)
 {
+	int rc;
+
 	if (!xen_domain())
 		return -ENODEV;
 
 	pr_info("Initialising Xen transport for 9pfs\n");
 
 	v9fs_register_trans(&p9_xen_trans);
-	return xenbus_register_frontend(&xen_9pfs_front_driver);
+	rc = xenbus_register_frontend(&xen_9pfs_front_driver);
+	if (rc)
+		v9fs_unregister_trans(&p9_xen_trans);
+
+	return rc;
 }
 module_init(p9_trans_xen_init);
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 151/293] 9p/virtio: Add cleanup path in p9_virtio_init
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (149 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 150/293] 9p/xen: Add cleanup path in p9_trans_xen_init Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 152/293] x86/boot: Fix memory leak in default_get_smp_config() Greg Kroah-Hartman
                   ` (147 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Hulk Robot, YueHaibing, Dominique Martinet

From: YueHaibing <yuehaibing@huawei.com>

commit d4548543fc4ece56c6f04b8586f435fb4fd84c20 upstream.

KASAN report this:

BUG: unable to handle kernel paging request at ffffffffa0097000
PGD 3870067 P4D 3870067 PUD 3871063 PMD 2326e2067 PTE 0
Oops: 0000 [#1
CPU: 0 PID: 5340 Comm: modprobe Not tainted 5.1.0-rc7+ #25
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014
RIP: 0010:__list_add_valid+0x10/0x70
Code: c3 48 8b 06 55 48 89 e5 5d 48 39 07 0f 94 c0 0f b6 c0 c3 90 90 90 90 90 90 90 55 48 89 d0 48 8b 52 08 48 89 e5 48 39 f2 75 19 <48> 8b 32 48 39 f0 75 3a

RSP: 0018:ffffc90000e23c68 EFLAGS: 00010246
RAX: ffffffffa00ad000 RBX: ffffffffa009d000 RCX: 0000000000000000
RDX: ffffffffa0097000 RSI: ffffffffa0097000 RDI: ffffffffa009d000
RBP: ffffc90000e23c68 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa0097000
R13: ffff888231797180 R14: 0000000000000000 R15: ffffc90000e23e78
FS:  00007fb215285540(0000) GS:ffff888237a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffa0097000 CR3: 000000022f144000 CR4: 00000000000006f0
Call Trace:
 v9fs_register_trans+0x2f/0x60 [9pnet
 ? 0xffffffffa0087000
 p9_virtio_init+0x25/0x1000 [9pnet_virtio
 do_one_initcall+0x6c/0x3cc
 ? kmem_cache_alloc_trace+0x248/0x3b0
 do_init_module+0x5b/0x1f1
 load_module+0x1db1/0x2690
 ? m_show+0x1d0/0x1d0
 __do_sys_finit_module+0xc5/0xd0
 __x64_sys_finit_module+0x15/0x20
 do_syscall_64+0x6b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fb214d8e839
Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01

RSP: 002b:00007ffc96554278 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 000055e67eed2aa0 RCX: 00007fb214d8e839
RDX: 0000000000000000 RSI: 000055e67ce95c2e RDI: 0000000000000003
RBP: 000055e67ce95c2e R08: 0000000000000000 R09: 000055e67eed2aa0
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 000055e67eeda500 R14: 0000000000040000 R15: 000055e67eed2aa0
Modules linked in: 9pnet_virtio(+) 9pnet gre rfkill vmw_vsock_virtio_transport_common vsock [last unloaded: 9pnet_virtio
CR2: ffffffffa0097000
---[ end trace 4a52bb13ff07b761

If register_virtio_driver() fails in p9_virtio_init,
we should call v9fs_unregister_trans() to do cleanup.

Link: http://lkml.kernel.org/r/20190430115942.41840-1-yuehaibing@huawei.com
Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: b530cc794024 ("9p: add virtio transport")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/9p/trans_virtio.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -764,10 +764,16 @@ static struct p9_trans_module p9_virtio_
 /* The standard init function */
 static int __init p9_virtio_init(void)
 {
+	int rc;
+
 	INIT_LIST_HEAD(&virtio_chan_list);
 
 	v9fs_register_trans(&p9_virtio_trans);
-	return register_virtio_driver(&p9_virtio_drv);
+	rc = register_virtio_driver(&p9_virtio_drv);
+	if (rc)
+		v9fs_unregister_trans(&p9_virtio_trans);
+
+	return rc;
 }
 
 static void __exit p9_virtio_cleanup(void)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 152/293] x86/boot: Fix memory leak in default_get_smp_config()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (150 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 151/293] 9p/virtio: Add cleanup path in p9_virtio_init Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 153/293] perf/x86/amd/uncore: Do not set ThreadMask and SliceMask for non-L3 PMCs Greg Kroah-Hartman
                   ` (146 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Cfir Cohen, David Rientjes, Thomas Gleixner

From: David Rientjes <rientjes@google.com>

commit e74bd96989dd42a51a73eddb4a5510a6f5e42ac3 upstream.

When default_get_smp_config() is called with early == 1 and mpf->feature1
is non-zero, mpf is leaked because the return path does not do
early_memunmap().

Fix this and share a common exit routine.

Fixes: 5997efb96756 ("x86/boot: Use memremap() to map the MPF and MPC data")
Reported-by: Cfir Cohen <cfir@google.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1907091942570.28240@chino.kir.corp.google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/kernel/mpparse.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -544,17 +544,15 @@ void __init default_get_smp_config(unsig
 			 * local APIC has default address
 			 */
 			mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
-			return;
+			goto out;
 		}
 
 		pr_info("Default MP configuration #%d\n", mpf->feature1);
 		construct_default_ISA_mptable(mpf->feature1);
 
 	} else if (mpf->physptr) {
-		if (check_physptr(mpf, early)) {
-			early_memunmap(mpf, sizeof(*mpf));
-			return;
-		}
+		if (check_physptr(mpf, early))
+			goto out;
 	} else
 		BUG();
 
@@ -563,7 +561,7 @@ void __init default_get_smp_config(unsig
 	/*
 	 * Only use the first configuration found.
 	 */
-
+out:
 	early_memunmap(mpf, sizeof(*mpf));
 }
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 153/293] perf/x86/amd/uncore: Do not set ThreadMask and SliceMask for non-L3 PMCs
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (151 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 152/293] x86/boot: Fix memory leak in default_get_smp_config() Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 154/293] perf/x86/amd/uncore: Set the thread mask for F17h L3 PMCs Greg Kroah-Hartman
                   ` (145 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Kim Phillips, Peter Zijlstra (Intel),
	Alexander Shishkin, Arnaldo Carvalho de Melo, Borislav Petkov,
	Gary Hook, H. Peter Anvin, Janakarajan Natarajan, Jiri Olsa,
	Linus Torvalds, Martin Liska, Namhyung Kim, Pu Wen,
	Stephane Eranian, Suravee Suthikulpanit, Thomas Gleixner,
	Vince Weaver, Ingo Molnar

From: Kim Phillips <kim.phillips@amd.com>

commit 16f4641166b10e199f0d7b68c2c5f004fef0bda3 upstream.

The following commit:

  d7cbbe49a930 ("perf/x86/amd/uncore: Set ThreadMask and SliceMask for L3 Cache perf events")

enables L3 PMC events for all threads and slices by writing 1's in
'ChL3PmcCfg' (L3 PMC PERF_CTL) register fields.

Those bitfields overlap with high order event select bits in the Data
Fabric PMC control register, however.

So when a user requests raw Data Fabric events (-e amd_df/event=0xYYY/),
the two highest order bits get inadvertently set, changing the counter
select to events that don't exist, and for which no counts are read.

This patch changes the logic to write the L3 masks only when dealing
with L3 PMC counters.

AMD Family 16h and below Northbridge (NB) counters were not affected.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Gary Hook <Gary.Hook@amd.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Liska <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pu Wen <puwen@hygon.cn>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Fixes: d7cbbe49a930 ("perf/x86/amd/uncore: Set ThreadMask and SliceMask for L3 Cache perf events")
Link: https://lkml.kernel.org/r/20190628215906.4276-1-kim.phillips@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/events/amd/uncore.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/events/amd/uncore.c
+++ b/arch/x86/events/amd/uncore.c
@@ -213,7 +213,7 @@ static int amd_uncore_event_init(struct
 	 * SliceMask and ThreadMask need to be set for certain L3 events in
 	 * Family 17h. For other events, the two fields do not affect the count.
 	 */
-	if (l3_mask)
+	if (l3_mask && is_llc_event(event))
 		hwc->config |= (AMD64_L3_SLICE_MASK | AMD64_L3_THREAD_MASK);
 
 	if (event->cpu < 0)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 154/293] perf/x86/amd/uncore: Set the thread mask for F17h L3 PMCs
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (152 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 153/293] perf/x86/amd/uncore: Do not set ThreadMask and SliceMask for non-L3 PMCs Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 155/293] intel_th: pci: Add Ice Lake NNPI support Greg Kroah-Hartman
                   ` (144 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Kim Phillips, Peter Zijlstra (Intel),
	Alexander Shishkin, Arnaldo Carvalho de Melo, Borislav Petkov,
	Gary Hook, H. Peter Anvin, Janakarajan Natarajan, Jiri Olsa,
	Linus Torvalds, Martin Liska, Namhyung Kim, Pu Wen,
	Stephane Eranian, Suravee Suthikulpanit, Thomas Gleixner,
	Vince Weaver, Ingo Molnar

From: Kim Phillips <kim.phillips@amd.com>

commit 2f217d58a8a086d3399fecce39fb358848e799c4 upstream.

Fill in the L3 performance event select register ThreadMask
bitfield, to enable per hardware thread accounting.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Gary Hook <Gary.Hook@amd.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Liska <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pu Wen <puwen@hygon.cn>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: https://lkml.kernel.org/r/20190628215906.4276-2-kim.phillips@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/events/amd/uncore.c |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

--- a/arch/x86/events/amd/uncore.c
+++ b/arch/x86/events/amd/uncore.c
@@ -209,15 +209,22 @@ static int amd_uncore_event_init(struct
 	hwc->config = event->attr.config & AMD64_RAW_EVENT_MASK_NB;
 	hwc->idx = -1;
 
+	if (event->cpu < 0)
+		return -EINVAL;
+
 	/*
 	 * SliceMask and ThreadMask need to be set for certain L3 events in
 	 * Family 17h. For other events, the two fields do not affect the count.
 	 */
-	if (l3_mask && is_llc_event(event))
-		hwc->config |= (AMD64_L3_SLICE_MASK | AMD64_L3_THREAD_MASK);
+	if (l3_mask && is_llc_event(event)) {
+		int thread = 2 * (cpu_data(event->cpu).cpu_core_id % 4);
 
-	if (event->cpu < 0)
-		return -EINVAL;
+		if (smp_num_siblings > 1)
+			thread += cpu_data(event->cpu).apicid & 1;
+
+		hwc->config |= (1ULL << (AMD64_L3_THREAD_SHIFT + thread) &
+				AMD64_L3_THREAD_MASK) | AMD64_L3_SLICE_MASK;
+	}
 
 	uncore = event_to_amd_uncore(event);
 	if (!uncore)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 155/293] intel_th: pci: Add Ice Lake NNPI support
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (153 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 154/293] perf/x86/amd/uncore: Set the thread mask for F17h L3 PMCs Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 156/293] PCI: Do not poll for PME if the device is in D3cold Greg Kroah-Hartman
                   ` (143 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Alexander Shishkin, Andy Shevchenko

From: Alexander Shishkin <alexander.shishkin@linux.intel.com>

commit 4aa5aed2b6f267592705a526f57518a5d715b769 upstream.

This adds Ice Lake NNPI support to the Intel(R) Trace Hub.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190621161930.60785-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/hwtracing/intel_th/pci.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -178,6 +178,11 @@ static const struct pci_device_id intel_
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x02a6),
 		.driver_data = (kernel_ulong_t)&intel_th_2x,
 	},
+	{
+		/* Ice Lake NNPI */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x45c5),
+		.driver_data = (kernel_ulong_t)&intel_th_2x,
+	},
 	{ 0 },
 };
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 156/293] PCI: Do not poll for PME if the device is in D3cold
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (154 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 155/293] intel_th: pci: Add Ice Lake NNPI support Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 157/293] Btrfs: fix data loss after inode eviction, renaming it, and fsync it Greg Kroah-Hartman
                   ` (142 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Mika Westerberg, Lukas Wunner,
	Rafael J. Wysocki

From: Mika Westerberg <mika.westerberg@linux.intel.com>

commit 000dd5316e1c756a1c028f22e01d06a38249dd4d upstream.

PME polling does not take into account that a device that is directly
connected to the host bridge may go into D3cold as well. This leads to a
situation where the PME poll thread reads from a config space of a
device that is in D3cold and gets incorrect information because the
config space is not accessible.

Here is an example from Intel Ice Lake system where two PCIe root ports
are in D3cold (I've instrumented the kernel to log the PMCSR register
contents):

  [   62.971442] pcieport 0000:00:07.1: Check PME status, PMCSR=0xffff
  [   62.971504] pcieport 0000:00:07.0: Check PME status, PMCSR=0xffff

Since 0xffff is interpreted so that PME is pending, the root ports will
be runtime resumed. This repeats over and over again essentially
blocking all runtime power management.

Prevent this from happening by checking whether the device is in D3cold
before its PME status is read.

Fixes: 71a83bd727cc ("PCI/PM: add runtime PM support to PCIe port")
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: 3.6+ <stable@vger.kernel.org> # v3.6+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/pci/pci.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1786,6 +1786,13 @@ static void pci_pme_list_scan(struct wor
 			 */
 			if (bridge && bridge->current_state != PCI_D0)
 				continue;
+			/*
+			 * If the device is in D3cold it should not be
+			 * polled either.
+			 */
+			if (pme_dev->dev->current_state == PCI_D3cold)
+				continue;
+
 			pci_pme_wakeup(pme_dev->dev, NULL);
 		} else {
 			list_del(&pme_dev->list);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 157/293] Btrfs: fix data loss after inode eviction, renaming it, and fsync it
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (155 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 156/293] PCI: Do not poll for PME if the device is in D3cold Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 158/293] Btrfs: fix fsync not persisting dentry deletions due to inode evictions Greg Kroah-Hartman
                   ` (141 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Filipe Manana, David Sterba

From: Filipe Manana <fdmanana@suse.com>

commit d1d832a0b51dd9570429bb4b81b2a6c1759e681a upstream.

When we log an inode, regardless of logging it completely or only that it
exists, we always update it as logged (logged_trans and last_log_commit
fields of the inode are updated). This is generally fine and avoids future
attempts to log it from having to do repeated work that brings no value.

However, if we write data to a file, then evict its inode after all the
dealloc was flushed (and ordered extents completed), rename the file and
fsync it, we end up not logging the new extents, since the rename may
result in logging that the inode exists in case the parent directory was
logged before. The following reproducer shows and explains how this can
happen:

  $ mkfs.btrfs -f /dev/sdb
  $ mount /dev/sdb /mnt

  $ mkdir /mnt/dir
  $ touch /mnt/dir/foo
  $ touch /mnt/dir/bar

  # Do a direct IO write instead of a buffered write because with a
  # buffered write we would need to make sure dealloc gets flushed and
  # complete before we do the inode eviction later, and we can not do that
  # from user space with call to things such as sync(2) since that results
  # in a transaction commit as well.
  $ xfs_io -d -c "pwrite -S 0xd3 0 4K" /mnt/dir/bar

  # Keep the directory dir in use while we evict inodes. We want our file
  # bar's inode to be evicted but we don't want our directory's inode to
  # be evicted (if it were evicted too, we would not be able to reproduce
  # the issue since the first fsync below, of file foo, would result in a
  # transaction commit.
  $ ( cd /mnt/dir; while true; do :; done ) &
  $ pid=$!

  # Wait a bit to give time for the background process to chdir.
  $ sleep 0.1

  # Evict all inodes, except the inode for the directory dir because it is
  # currently in use by our background process.
  $ echo 2 > /proc/sys/vm/drop_caches

  # fsync file foo, which ends up persisting information about the parent
  # directory because it is a new inode.
  $ xfs_io -c fsync /mnt/dir/foo

  # Rename bar, this results in logging that this inode exists (inode item,
  # names, xattrs) because the parent directory is in the log.
  $ mv /mnt/dir/bar /mnt/dir/baz

  # Now fsync baz, which ends up doing absolutely nothing because of the
  # rename operation which logged that the inode exists only.
  $ xfs_io -c fsync /mnt/dir/baz

  <power failure>

  $ mount /dev/sdb /mnt
  $ od -t x1 -A d /mnt/dir/baz
  0000000

    --> Empty file, data we wrote is missing.

Fix this by not updating last_sub_trans of an inode when we are logging
only that it exists and the inode was not yet logged since it was loaded
from disk (full_sync bit set), this is enough to make btrfs_inode_in_log()
return false for this scenario and make us log the inode. The logged_trans
of the inode is still always setsince that alone is used to track if names
need to be deleted as part of unlink operations.

Fixes: 257c62e1bce03e ("Btrfs: avoid tree log commit when there are no changes")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/tree-log.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -5266,9 +5266,19 @@ log_extents:
 		}
 	}
 
+	/*
+	 * Don't update last_log_commit if we logged that an inode exists after
+	 * it was loaded to memory (full_sync bit set).
+	 * This is to prevent data loss when we do a write to the inode, then
+	 * the inode gets evicted after all delalloc was flushed, then we log
+	 * it exists (due to a rename for example) and then fsync it. This last
+	 * fsync would do nothing (not logging the extents previously written).
+	 */
 	spin_lock(&inode->lock);
 	inode->logged_trans = trans->transid;
-	inode->last_log_commit = inode->last_sub_trans;
+	if (inode_only != LOG_INODE_EXISTS ||
+	    !test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &inode->runtime_flags))
+		inode->last_log_commit = inode->last_sub_trans;
 	spin_unlock(&inode->lock);
 out_unlock:
 	if (unlikely(err))



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 158/293] Btrfs: fix fsync not persisting dentry deletions due to inode evictions
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (156 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 157/293] Btrfs: fix data loss after inode eviction, renaming it, and fsync it Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 159/293] Btrfs: add missing inode version, ctime and mtime updates when punching hole Greg Kroah-Hartman
                   ` (140 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Filipe Manana, David Sterba

From: Filipe Manana <fdmanana@suse.com>

commit 803f0f64d17769071d7287d9e3e3b79a3e1ae937 upstream.

In order to avoid searches on a log tree when unlinking an inode, we check
if the inode being unlinked was logged in the current transaction, as well
as the inode of its parent directory. When any of the inodes are logged,
we proceed to delete directory items and inode reference items from the
log, to ensure that if a subsequent fsync of only the inode being unlinked
or only of the parent directory when the other is not fsync'ed as well,
does not result in the entry still existing after a power failure.

That check however is not reliable when one of the inodes involved (the
one being unlinked or its parent directory's inode) is evicted, since the
logged_trans field is transient, that is, it is not stored on disk, so it
is lost when the inode is evicted and loaded into memory again (which is
set to zero on load). As a consequence the checks currently being done by
btrfs_del_dir_entries_in_log() and btrfs_del_inode_ref_in_log() always
return true if the inode was evicted before, regardless of the inode
having been logged or not before (and in the current transaction), this
results in the dentry being unlinked still existing after a log replay
if after the unlink operation only one of the inodes involved is fsync'ed.

Example:

  $ mkfs.btrfs -f /dev/sdb
  $ mount /dev/sdb /mnt

  $ mkdir /mnt/dir
  $ touch /mnt/dir/foo
  $ xfs_io -c fsync /mnt/dir/foo

  # Keep an open file descriptor on our directory while we evict inodes.
  # We just want to evict the file's inode, the directory's inode must not
  # be evicted.
  $ ( cd /mnt/dir; while true; do :; done ) &
  $ pid=$!

  # Wait a bit to give time to background process to chdir to our test
  # directory.
  $ sleep 0.5

  # Trigger eviction of the file's inode.
  $ echo 2 > /proc/sys/vm/drop_caches

  # Unlink our file and fsync the parent directory. After a power failure
  # we don't expect to see the file anymore, since we fsync'ed the parent
  # directory.
  $ rm -f $SCRATCH_MNT/dir/foo
  $ xfs_io -c fsync /mnt/dir

  <power failure>

  $ mount /dev/sdb /mnt
  $ ls /mnt/dir
  foo
  $
   --> file still there, unlink not persisted despite explicit fsync on dir

Fix this by checking if the inode has the full_sync bit set in its runtime
flags as well, since that bit is set everytime an inode is loaded from
disk, or for other less common cases such as after a shrinking truncate
or failure to allocate extent maps for holes, and gets cleared after the
first fsync. Also consider the inode as possibly logged only if it was
last modified in the current transaction (besides having the full_fsync
flag set).

Fixes: 3a5f1d458ad161 ("Btrfs: Optimize btree walking while logging inodes")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/tree-log.c |   28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3153,6 +3153,30 @@ int btrfs_free_log_root_tree(struct btrf
 }
 
 /*
+ * Check if an inode was logged in the current transaction. We can't always rely
+ * on an inode's logged_trans value, because it's an in-memory only field and
+ * therefore not persisted. This means that its value is lost if the inode gets
+ * evicted and loaded again from disk (in which case it has a value of 0, and
+ * certainly it is smaller then any possible transaction ID), when that happens
+ * the full_sync flag is set in the inode's runtime flags, so on that case we
+ * assume eviction happened and ignore the logged_trans value, assuming the
+ * worst case, that the inode was logged before in the current transaction.
+ */
+static bool inode_logged(struct btrfs_trans_handle *trans,
+			 struct btrfs_inode *inode)
+{
+	if (inode->logged_trans == trans->transid)
+		return true;
+
+	if (inode->last_trans == trans->transid &&
+	    test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &inode->runtime_flags) &&
+	    !test_bit(BTRFS_FS_LOG_RECOVERING, &trans->fs_info->flags))
+		return true;
+
+	return false;
+}
+
+/*
  * If both a file and directory are logged, and unlinks or renames are
  * mixed in, we have a few interesting corners:
  *
@@ -3186,7 +3210,7 @@ int btrfs_del_dir_entries_in_log(struct
 	int bytes_del = 0;
 	u64 dir_ino = btrfs_ino(dir);
 
-	if (dir->logged_trans < trans->transid)
+	if (!inode_logged(trans, dir))
 		return 0;
 
 	ret = join_running_log_trans(root);
@@ -3291,7 +3315,7 @@ int btrfs_del_inode_ref_in_log(struct bt
 	u64 index;
 	int ret;
 
-	if (inode->logged_trans < trans->transid)
+	if (!inode_logged(trans, inode))
 		return 0;
 
 	ret = join_running_log_trans(root);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 159/293] Btrfs: add missing inode version, ctime and mtime updates when punching hole
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (157 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 158/293] Btrfs: fix fsync not persisting dentry deletions due to inode evictions Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 160/293] HID: wacom: generic: only switch the mode on devices with LEDs Greg Kroah-Hartman
                   ` (139 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Filipe Manana, David Sterba

From: Filipe Manana <fdmanana@suse.com>

commit 179006688a7e888cbff39577189f2e034786d06a upstream.

If the range for which we are punching a hole covers only part of a page,
we end up updating the inode item but we skip the update of the inode's
iversion, mtime and ctime. Fix that by ensuring we update those properties
of the inode.

A patch for fstests test case generic/059 that tests this as been sent
along with this fix.

Fixes: 2aaa66558172b0 ("Btrfs: add hole punching")
Fixes: e8c1c76e804b18 ("Btrfs: add missing inode update when punching hole")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/file.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2784,6 +2784,11 @@ out_only_mutex:
 		 * for detecting, at fsync time, if the inode isn't yet in the
 		 * log tree or it's there but not up to date.
 		 */
+		struct timespec now = current_time(inode);
+
+		inode_inc_iversion(inode);
+		inode->i_mtime = now;
+		inode->i_ctime = now;
 		trans = btrfs_start_transaction(root, 1);
 		if (IS_ERR(trans)) {
 			err = PTR_ERR(trans);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 160/293] HID: wacom: generic: only switch the mode on devices with LEDs
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (158 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 159/293] Btrfs: add missing inode version, ctime and mtime updates when punching hole Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 161/293] HID: wacom: correct touch resolution x/y typo Greg Kroah-Hartman
                   ` (138 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Aaron Armstrong Skomra,
	Jason Gerecke, Jiri Kosina

From: Aaron Armstrong Skomra <skomra@gmail.com>

commit d8e9806005f28bbb49899dab2068e3359e22ba35 upstream.

Currently, the driver will attempt to set the mode on all
devices with a center button, but some devices with a center
button lack LEDs, and attempting to set the LEDs on devices
without LEDs results in the kernel error message of the form:

"leds input8::wacom-0.1: Setting an LED's brightness failed (-32)"

This is because the generic codepath erroneously assumes that the
BUTTON_CENTER usage indicates that the device has LEDs, the
previously ignored TOUCH_RING_SETTING usage is a more accurate
indication of the existence of LEDs on the device.

Fixes: 10c55cacb8b2 ("HID: wacom: generic: support LEDs")
Cc: <stable@vger.kernel.org> # v4.11+
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/hid/wacom_sys.c |    3 +++
 drivers/hid/wacom_wac.c |    2 --
 drivers/hid/wacom_wac.h |    1 +
 3 files changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -118,6 +118,9 @@ static void wacom_feature_mapping(struct
 	u32 n;
 
 	switch (equivalent_usage) {
+	case WACOM_HID_WD_TOUCH_RING_SETTING:
+		wacom->generic_has_leds = true;
+		break;
 	case HID_DG_CONTACTMAX:
 		/* leave touch_max as is if predefined */
 		if (!features->touch_max) {
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1871,8 +1871,6 @@ static void wacom_wac_pad_usage_mapping(
 		features->device_type |= WACOM_DEVICETYPE_PAD;
 		break;
 	case WACOM_HID_WD_BUTTONCENTER:
-		wacom->generic_has_leds = true;
-		/* fall through */
 	case WACOM_HID_WD_BUTTONHOME:
 	case WACOM_HID_WD_BUTTONUP:
 	case WACOM_HID_WD_BUTTONDOWN:
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -140,6 +140,7 @@
 #define WACOM_HID_WD_OFFSETBOTTOM       (WACOM_HID_UP_WACOMDIGITIZER | 0x0d33)
 #define WACOM_HID_WD_DATAMODE           (WACOM_HID_UP_WACOMDIGITIZER | 0x1002)
 #define WACOM_HID_WD_DIGITIZERINFO      (WACOM_HID_UP_WACOMDIGITIZER | 0x1013)
+#define WACOM_HID_WD_TOUCH_RING_SETTING (WACOM_HID_UP_WACOMDIGITIZER | 0x1032)
 #define WACOM_HID_UP_G9                 0xff090000
 #define WACOM_HID_G9_PEN                (WACOM_HID_UP_G9 | 0x02)
 #define WACOM_HID_G9_TOUCHSCREEN        (WACOM_HID_UP_G9 | 0x11)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 161/293] HID: wacom: correct touch resolution x/y typo
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (159 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 160/293] HID: wacom: generic: only switch the mode on devices with LEDs Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 162/293] libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields Greg Kroah-Hartman
                   ` (137 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Aaron Armstrong Skomra,
	Jason Gerecke, Jiri Kosina

From: Aaron Armstrong Skomra <skomra@gmail.com>

commit 68c20cc2164cc5c7c73f8012ae6491afdb1f7f72 upstream.

This affects the 2nd-gen Intuos Pro Medium and Large
when using their Bluetooth connection.

Fixes: 4922cd26f03c ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface")
Cc: <stable@vger.kernel.org> # v4.11+
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/hid/wacom_wac.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -3550,7 +3550,7 @@ int wacom_setup_touch_input_capabilities
 					     0, 5920, 4, 0);
 		}
 		input_abs_set_res(input_dev, ABS_MT_POSITION_X, 40);
-		input_abs_set_res(input_dev, ABS_MT_POSITION_X, 40);
+		input_abs_set_res(input_dev, ABS_MT_POSITION_Y, 40);
 
 		/* fall through */
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 162/293] libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (160 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 161/293] HID: wacom: correct touch resolution x/y typo Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 163/293] coda: pass the host file in vma->vm_file on mmap Greg Kroah-Hartman
                   ` (136 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Dan Williams, David Hildenbrand,
	Jane Chu, Jeff Moyer, Jérôme Glisse, Jonathan Corbet,
	Logan Gunthorpe, Michal Hocko, Mike Rapoport, Oscar Salvador,
	Pavel Tatashin, Toshi Kani, Vlastimil Babka, Wei Yang,
	Jason Gunthorpe, Christoph Hellwig, Andrew Morton,
	Linus Torvalds, Aneesh Kumar K . V

From: Dan Williams <dan.j.williams@intel.com>

commit 7e3e888dfc138089f4c15a81b418e88f0978f744 upstream.

At namespace creation time there is the potential for the "expected to
be zero" fields of a 'pfn' info-block to be filled with indeterminate
data.  While the kernel buffer is zeroed on allocation it is immediately
overwritten by nd_pfn_validate() filling it with the current contents of
the on-media info-block location.  For fields like, 'flags' and the
'padding' it potentially means that future implementations can not rely on
those fields being zero.

In preparation to stop using the 'start_pad' and 'end_trunc' fields for
section alignment, arrange for fields that are not explicitly
initialized to be guaranteed zero.  Bump the minor version to indicate
it is safe to assume the 'padding' and 'flags' are zero.  Otherwise,
this corruption is expected to benign since all other critical fields
are explicitly initialized.

Note The cc: stable is about spreading this new policy to as many
kernels as possible not fixing an issue in those kernels.  It is not
until the change titled "libnvdimm/pfn: Stop padding pmem namespaces to
section alignment" where this improper initialization becomes a problem.
So if someone decides to backport "libnvdimm/pfn: Stop padding pmem
namespaces to section alignment" (which is not tagged for stable), make
sure this pre-requisite is flagged.

Link: http://lkml.kernel.org/r/156092356065.979959.6681003754765958296.stgit@dwillia2-desk3.amr.corp.intel.com
Fixes: 32ab0a3f5170 ("libnvdimm, pmem: 'struct page' for pmem")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>	[ppc64]
Cc: <stable@vger.kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/nvdimm/dax_devs.c |    2 +-
 drivers/nvdimm/pfn.h      |    1 +
 drivers/nvdimm/pfn_devs.c |   18 +++++++++++++++---
 3 files changed, 17 insertions(+), 4 deletions(-)

--- a/drivers/nvdimm/dax_devs.c
+++ b/drivers/nvdimm/dax_devs.c
@@ -126,7 +126,7 @@ int nd_dax_probe(struct device *dev, str
 	nvdimm_bus_unlock(&ndns->dev);
 	if (!dax_dev)
 		return -ENOMEM;
-	pfn_sb = devm_kzalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
+	pfn_sb = devm_kmalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
 	nd_pfn->pfn_sb = pfn_sb;
 	rc = nd_pfn_validate(nd_pfn, DAX_SIG);
 	dev_dbg(dev, "%s: dax: %s\n", __func__,
--- a/drivers/nvdimm/pfn.h
+++ b/drivers/nvdimm/pfn.h
@@ -36,6 +36,7 @@ struct nd_pfn_sb {
 	__le32 end_trunc;
 	/* minor-version-2 record the base alignment of the mapping */
 	__le32 align;
+	/* minor-version-3 guarantee the padding and flags are zero */
 	u8 padding[4000];
 	__le64 checksum;
 };
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -361,6 +361,15 @@ struct device *nd_pfn_create(struct nd_r
 	return dev;
 }
 
+/**
+ * nd_pfn_validate - read and validate info-block
+ * @nd_pfn: fsdax namespace runtime state / properties
+ * @sig: 'devdax' or 'fsdax' signature
+ *
+ * Upon return the info-block buffer contents (->pfn_sb) are
+ * indeterminate when validation fails, and a coherent info-block
+ * otherwise.
+ */
 int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
 {
 	u64 checksum, offset;
@@ -506,7 +515,7 @@ int nd_pfn_probe(struct device *dev, str
 	nvdimm_bus_unlock(&ndns->dev);
 	if (!pfn_dev)
 		return -ENOMEM;
-	pfn_sb = devm_kzalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
+	pfn_sb = devm_kmalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
 	nd_pfn = to_nd_pfn(pfn_dev);
 	nd_pfn->pfn_sb = pfn_sb;
 	rc = nd_pfn_validate(nd_pfn, PFN_SIG);
@@ -637,7 +646,7 @@ static int nd_pfn_init(struct nd_pfn *nd
 	u64 checksum;
 	int rc;
 
-	pfn_sb = devm_kzalloc(&nd_pfn->dev, sizeof(*pfn_sb), GFP_KERNEL);
+	pfn_sb = devm_kmalloc(&nd_pfn->dev, sizeof(*pfn_sb), GFP_KERNEL);
 	if (!pfn_sb)
 		return -ENOMEM;
 
@@ -646,11 +655,14 @@ static int nd_pfn_init(struct nd_pfn *nd
 		sig = DAX_SIG;
 	else
 		sig = PFN_SIG;
+
 	rc = nd_pfn_validate(nd_pfn, sig);
 	if (rc != -ENODEV)
 		return rc;
 
 	/* no info block, do init */;
+	memset(pfn_sb, 0, sizeof(*pfn_sb));
+
 	nd_region = to_nd_region(nd_pfn->dev.parent);
 	if (nd_region->ro) {
 		dev_info(&nd_pfn->dev,
@@ -704,7 +716,7 @@ static int nd_pfn_init(struct nd_pfn *nd
 	memcpy(pfn_sb->uuid, nd_pfn->uuid, 16);
 	memcpy(pfn_sb->parent_uuid, nd_dev_to_uuid(&ndns->dev), 16);
 	pfn_sb->version_major = cpu_to_le16(1);
-	pfn_sb->version_minor = cpu_to_le16(2);
+	pfn_sb->version_minor = cpu_to_le16(3);
 	pfn_sb->start_pad = cpu_to_le32(start_pad);
 	pfn_sb->end_trunc = cpu_to_le32(end_trunc);
 	pfn_sb->align = cpu_to_le32(nd_pfn->align);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 163/293] coda: pass the host file in vma->vm_file on mmap
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (161 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 162/293] libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 164/293] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM Greg Kroah-Hartman
                   ` (135 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jan Harkes, Arnd Bergmann,
	Colin Ian King, Dan Carpenter, David Howells, Fabian Frederick,
	Mikko Rapeli, Sam Protsenko, Yann Droneaud, Zhouyang Jia,
	Andrew Morton, Linus Torvalds

From: Jan Harkes <jaharkes@cs.cmu.edu>

commit 7fa0a1da3dadfd9216df7745a1331fdaa0940d1c upstream.

Patch series "Coda updates".

The following patch series is a collection of various fixes for Coda,
most of which were collected from linux-fsdevel or linux-kernel but
which have as yet not found their way upstream.

This patch (of 22):

Various file systems expect that vma->vm_file points at their own file
handle, several use file_inode(vma->vm_file) to get at their inode or
use vma->vm_file->private_data.  However the way Coda wrapped mmap on a
host file broke this assumption, vm_file was still pointing at the Coda
file and the host file systems would scribble over Coda's inode and
private file data.

This patch fixes the incorrect expectation and wraps vm_ops->open and
vm_ops->close to allow Coda to track when the vm_area_struct is
destroyed so we still release the reference on the Coda file handle at
the right time.

Link: http://lkml.kernel.org/r/0e850c6e59c0b147dc2dcd51a3af004c948c3697.1558117389.git.jaharkes@cs.cmu.edu
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Mikko Rapeli <mikko.rapeli@iki.fi>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Yann Droneaud <ydroneaud@opteya.com>
Cc: Zhouyang Jia <jiazhouyang09@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/coda/file.c |   70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 68 insertions(+), 2 deletions(-)

--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -27,6 +27,13 @@
 #include "coda_linux.h"
 #include "coda_int.h"
 
+struct coda_vm_ops {
+	atomic_t refcnt;
+	struct file *coda_file;
+	const struct vm_operations_struct *host_vm_ops;
+	struct vm_operations_struct vm_ops;
+};
+
 static ssize_t
 coda_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
@@ -61,6 +68,34 @@ coda_file_write_iter(struct kiocb *iocb,
 	return ret;
 }
 
+static void
+coda_vm_open(struct vm_area_struct *vma)
+{
+	struct coda_vm_ops *cvm_ops =
+		container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+	atomic_inc(&cvm_ops->refcnt);
+
+	if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->open)
+		cvm_ops->host_vm_ops->open(vma);
+}
+
+static void
+coda_vm_close(struct vm_area_struct *vma)
+{
+	struct coda_vm_ops *cvm_ops =
+		container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+	if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->close)
+		cvm_ops->host_vm_ops->close(vma);
+
+	if (atomic_dec_and_test(&cvm_ops->refcnt)) {
+		vma->vm_ops = cvm_ops->host_vm_ops;
+		fput(cvm_ops->coda_file);
+		kfree(cvm_ops);
+	}
+}
+
 static int
 coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 {
@@ -68,6 +103,8 @@ coda_file_mmap(struct file *coda_file, s
 	struct coda_inode_info *cii;
 	struct file *host_file;
 	struct inode *coda_inode, *host_inode;
+	struct coda_vm_ops *cvm_ops;
+	int ret;
 
 	cfi = CODA_FTOC(coda_file);
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
@@ -76,6 +113,13 @@ coda_file_mmap(struct file *coda_file, s
 	if (!host_file->f_op->mmap)
 		return -ENODEV;
 
+	if (WARN_ON(coda_file != vma->vm_file))
+		return -EIO;
+
+	cvm_ops = kmalloc(sizeof(struct coda_vm_ops), GFP_KERNEL);
+	if (!cvm_ops)
+		return -ENOMEM;
+
 	coda_inode = file_inode(coda_file);
 	host_inode = file_inode(host_file);
 
@@ -89,6 +133,7 @@ coda_file_mmap(struct file *coda_file, s
 	 * the container file on us! */
 	else if (coda_inode->i_mapping != host_inode->i_mapping) {
 		spin_unlock(&cii->c_lock);
+		kfree(cvm_ops);
 		return -EBUSY;
 	}
 
@@ -97,7 +142,29 @@ coda_file_mmap(struct file *coda_file, s
 	cfi->cfi_mapcount++;
 	spin_unlock(&cii->c_lock);
 
-	return call_mmap(host_file, vma);
+	vma->vm_file = get_file(host_file);
+	ret = call_mmap(vma->vm_file, vma);
+
+	if (ret) {
+		/* if call_mmap fails, our caller will put coda_file so we
+		 * should drop the reference to the host_file that we got.
+		 */
+		fput(host_file);
+		kfree(cvm_ops);
+	} else {
+		/* here we add redirects for the open/close vm_operations */
+		cvm_ops->host_vm_ops = vma->vm_ops;
+		if (vma->vm_ops)
+			cvm_ops->vm_ops = *vma->vm_ops;
+
+		cvm_ops->vm_ops.open = coda_vm_open;
+		cvm_ops->vm_ops.close = coda_vm_close;
+		cvm_ops->coda_file = coda_file;
+		atomic_set(&cvm_ops->refcnt, 1);
+
+		vma->vm_ops = &cvm_ops->vm_ops;
+	}
+	return ret;
 }
 
 int coda_open(struct inode *coda_inode, struct file *coda_file)
@@ -207,4 +274,3 @@ const struct file_operations coda_file_o
 	.fsync		= coda_fsync,
 	.splice_read	= generic_file_splice_read,
 };
-



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 164/293] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (162 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 163/293] coda: pass the host file in vma->vm_file on mmap Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 165/293] PCI: hv: Fix a use-after-free bug in hv_eject_device_work() Greg Kroah-Hartman
                   ` (134 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Steve Longerbeam, Philipp Zabel

From: Steve Longerbeam <slongerbeam@gmail.com>

commit 3d1f62c686acdedf5ed9642b763f3808d6a47d1e upstream.

The saturation bit was being set at bit 9 in the second 32-bit word
of the TPMEM CSC. This isn't correct, the saturation bit is bit 42,
which is bit 10 of the second word.

Fixes: 1aa8ea0d2bd5d ("gpu: ipu-v3: Add Image Converter unit")

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/ipu-v3/ipu-ic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/ipu-v3/ipu-ic.c
+++ b/drivers/gpu/ipu-v3/ipu-ic.c
@@ -256,7 +256,7 @@ static int init_csc(struct ipu_ic *ic,
 	writel(param, base++);
 
 	param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) |
-		(params->sat << 9);
+		(params->sat << 10);
 	writel(param, base++);
 
 	param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) |



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 165/293] PCI: hv: Fix a use-after-free bug in hv_eject_device_work()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (163 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 164/293] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 166/293] crypto: caam - limit output IV to CBC to work around CTR mode DMA issue Greg Kroah-Hartman
                   ` (133 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Dexuan Cui, Lorenzo Pieralisi,
	Michael Kelley

From: Dexuan Cui <decui@microsoft.com>

commit 4df591b20b80cb77920953812d894db259d85bd7 upstream.

Fix a use-after-free in hv_eject_device_work().

Fixes: 05f151a73ec2 ("PCI: hv: Fix a memory leak in hv_eject_device_work()")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/pci/host/pci-hyperv.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

--- a/drivers/pci/host/pci-hyperv.c
+++ b/drivers/pci/host/pci-hyperv.c
@@ -1912,6 +1912,7 @@ static void hv_pci_devices_present(struc
 static void hv_eject_device_work(struct work_struct *work)
 {
 	struct pci_eject_response *ejct_pkt;
+	struct hv_pcibus_device *hbus;
 	struct hv_pci_dev *hpdev;
 	struct pci_dev *pdev;
 	unsigned long flags;
@@ -1922,6 +1923,7 @@ static void hv_eject_device_work(struct
 	} ctxt;
 
 	hpdev = container_of(work, struct hv_pci_dev, wrk);
+	hbus = hpdev->hbus;
 
 	if (hpdev->state != hv_pcichild_ejecting) {
 		put_pcichild(hpdev, hv_pcidev_ref_pnp);
@@ -1935,8 +1937,7 @@ static void hv_eject_device_work(struct
 	 * because hbus->pci_bus may not exist yet.
 	 */
 	wslot = wslot_to_devfn(hpdev->desc.win_slot.slot);
-	pdev = pci_get_domain_bus_and_slot(hpdev->hbus->sysdata.domain, 0,
-					   wslot);
+	pdev = pci_get_domain_bus_and_slot(hbus->sysdata.domain, 0, wslot);
 	if (pdev) {
 		pci_lock_rescan_remove();
 		pci_stop_and_remove_bus_device(pdev);
@@ -1944,9 +1945,9 @@ static void hv_eject_device_work(struct
 		pci_unlock_rescan_remove();
 	}
 
-	spin_lock_irqsave(&hpdev->hbus->device_list_lock, flags);
+	spin_lock_irqsave(&hbus->device_list_lock, flags);
 	list_del(&hpdev->list_entry);
-	spin_unlock_irqrestore(&hpdev->hbus->device_list_lock, flags);
+	spin_unlock_irqrestore(&hbus->device_list_lock, flags);
 
 	if (hpdev->pci_slot)
 		pci_destroy_slot(hpdev->pci_slot);
@@ -1955,14 +1956,16 @@ static void hv_eject_device_work(struct
 	ejct_pkt = (struct pci_eject_response *)&ctxt.pkt.message;
 	ejct_pkt->message_type.type = PCI_EJECTION_COMPLETE;
 	ejct_pkt->wslot.slot = hpdev->desc.win_slot.slot;
-	vmbus_sendpacket(hpdev->hbus->hdev->channel, ejct_pkt,
+	vmbus_sendpacket(hbus->hdev->channel, ejct_pkt,
 			 sizeof(*ejct_pkt), (unsigned long)&ctxt.pkt,
 			 VM_PKT_DATA_INBAND, 0);
 
 	put_pcichild(hpdev, hv_pcidev_ref_childlist);
 	put_pcichild(hpdev, hv_pcidev_ref_initial);
 	put_pcichild(hpdev, hv_pcidev_ref_pnp);
-	put_hvpcibus(hpdev->hbus);
+
+	/* hpdev has been freed. Do not use it any more. */
+	put_hvpcibus(hbus);
 }
 
 /**



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 166/293] crypto: caam - limit output IV to CBC to work around CTR mode DMA issue
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (164 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 165/293] PCI: hv: Fix a use-after-free bug in hv_eject_device_work() Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 167/293] parisc: Ensure userspace privilege for ptraced processes in regset functions Greg Kroah-Hartman
                   ` (132 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Horia Geanta, Iuliana Prodan,
	Sascha Hauer, Ard Biesheuvel, Herbert Xu

From: Ard Biesheuvel <ard.biesheuvel@linaro.org>

commit ed527b13d800dd515a9e6c582f0a73eca65b2e1b upstream.

The CAAM driver currently violates an undocumented and slightly
controversial requirement imposed by the crypto stack that a buffer
referred to by the request structure via its virtual address may not
be modified while any scatterlists passed via the same request
structure are mapped for inbound DMA.

This may result in errors like

  alg: aead: decryption failed on test 1 for gcm_base(ctr-aes-caam,ghash-generic): ret=74
  alg: aead: Failed to load transform for gcm(aes): -2

on non-cache coherent systems, due to the fact that the GCM driver
passes an IV buffer by virtual address which shares a cacheline with
the auth_tag buffer passed via a scatterlist, resulting in corruption
of the auth_tag when the IV is updated while the DMA mapping is live.

Since the IV that is returned to the caller is only valid for CBC mode,
and given that the in-kernel users of CBC (such as CTS) don't trigger the
same issue as the GCM driver, let's just disable the output IV generation
for all modes except CBC for the time being.

Fixes: 854b06f76879 ("crypto: caam - properly set IV after {en,de}crypt")
Cc: Horia Geanta <horia.geanta@nxp.com>
Cc: Iuliana Prodan <iuliana.prodan@nxp.com>
Reported-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
[ Horia: backported to 4.14, 4.19 ]
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/caam/caamalg.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -853,6 +853,7 @@ static void ablkcipher_encrypt_done(stru
 	struct ablkcipher_request *req = context;
 	struct ablkcipher_edesc *edesc;
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+	struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
 	int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 
 #ifdef DEBUG
@@ -877,10 +878,11 @@ static void ablkcipher_encrypt_done(stru
 
 	/*
 	 * The crypto API expects us to set the IV (req->info) to the last
-	 * ciphertext block. This is used e.g. by the CTS mode.
+	 * ciphertext block when running in CBC mode.
 	 */
-	scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize,
-				 ivsize, 0);
+	if ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CBC)
+		scatterwalk_map_and_copy(req->info, req->dst, req->nbytes -
+					 ivsize, ivsize, 0);
 
 	/* In case initial IV was generated, copy it in GIVCIPHER request */
 	if (edesc->iv_dir == DMA_FROM_DEVICE) {
@@ -1609,10 +1611,11 @@ static int ablkcipher_decrypt(struct abl
 
 	/*
 	 * The crypto API expects us to set the IV (req->info) to the last
-	 * ciphertext block.
+	 * ciphertext block when running in CBC mode.
 	 */
-	scatterwalk_map_and_copy(req->info, req->src, req->nbytes - ivsize,
-				 ivsize, 0);
+	if ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CBC)
+		scatterwalk_map_and_copy(req->info, req->src, req->nbytes -
+					 ivsize, ivsize, 0);
 
 	/* Create and submit job descriptor*/
 	init_ablkcipher_job(ctx->sh_desc_dec, ctx->sh_desc_dec_dma, edesc, req);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 167/293] parisc: Ensure userspace privilege for ptraced processes in regset functions
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (165 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 166/293] crypto: caam - limit output IV to CBC to work around CTR mode DMA issue Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:20 ` [PATCH 4.14 168/293] parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1 Greg Kroah-Hartman
                   ` (131 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Rolf Eike Beer, Helge Deller

From: Helge Deller <deller@gmx.de>

commit 34c32fc603311a72cb558e5e337555434f64c27b upstream.

On parisc the privilege level of a process is stored in the lowest two bits of
the instruction pointers (IAOQ0 and IAOQ1). On Linux we use privilege level 0
for the kernel and privilege level 3 for user-space. So userspace should not be
allowed to modify IAOQ0 or IAOQ1 of a ptraced process to change it's privilege
level to e.g. 0 to try to gain kernel privileges.

This patch prevents such modifications in the regset support functions by
always setting the two lowest bits to one (which relates to privilege level 3
for user-space) if IAOQ0 or IAOQ1 are modified via ptrace regset calls.

Link: https://bugs.gentoo.org/481768
Cc: <stable@vger.kernel.org> # v4.7+
Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/ptrace.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -500,7 +500,8 @@ static void set_reg(struct pt_regs *regs
 			return;
 	case RI(iaoq[0]):
 	case RI(iaoq[1]):
-			regs->iaoq[num - RI(iaoq[0])] = val;
+			/* set 2 lowest bits to ensure userspace privilege: */
+			regs->iaoq[num - RI(iaoq[0])] = val | 3;
 			return;
 	case RI(sar):	regs->sar = val;
 			return;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 168/293] parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (166 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 167/293] parisc: Ensure userspace privilege for ptraced processes in regset functions Greg Kroah-Hartman
@ 2019-07-29 19:20 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 169/293] powerpc/32s: fix suspend/resume when IBATs 4-7 are used Greg Kroah-Hartman
                   ` (130 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:20 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jeroen Roovers, Rolf Eike Beer, Helge Deller

From: Helge Deller <deller@gmx.de>

commit 10835c854685393a921b68f529bf740fa7c9984d upstream.

On parisc the privilege level of a process is stored in the lowest two bits of
the instruction pointers (IAOQ0 and IAOQ1). On Linux we use privilege level 0
for the kernel and privilege level 3 for user-space. So userspace should not be
allowed to modify IAOQ0 or IAOQ1 of a ptraced process to change it's privilege
level to e.g. 0 to try to gain kernel privileges.

This patch prevents such modifications by always setting the two lowest bits to
one (which relates to privilege level 3 for user-space) if IAOQ0 or IAOQ1 are
modified via ptrace calls in the native and compat ptrace paths.

Link: https://bugs.gentoo.org/481768
Reported-by: Jeroen Roovers <jer@gentoo.org>
Cc: <stable@vger.kernel.org>
Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/ptrace.c |   28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -171,6 +171,9 @@ long arch_ptrace(struct task_struct *chi
 		if ((addr & (sizeof(unsigned long)-1)) ||
 		     addr >= sizeof(struct pt_regs))
 			break;
+		if (addr == PT_IAOQ0 || addr == PT_IAOQ1) {
+			data |= 3; /* ensure userspace privilege */
+		}
 		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
 				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
 				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
@@ -232,16 +235,18 @@ long arch_ptrace(struct task_struct *chi
 
 static compat_ulong_t translate_usr_offset(compat_ulong_t offset)
 {
-	if (offset < 0)
-		return sizeof(struct pt_regs);
-	else if (offset <= 32*4)	/* gr[0..31] */
-		return offset * 2 + 4;
-	else if (offset <= 32*4+32*8)	/* gr[0..31] + fr[0..31] */
-		return offset + 32*4;
-	else if (offset < sizeof(struct pt_regs)/2 + 32*4)
-		return offset * 2 + 4 - 32*8;
+	compat_ulong_t pos;
+
+	if (offset < 32*4)	/* gr[0..31] */
+		pos = offset * 2 + 4;
+	else if (offset < 32*4+32*8)	/* fr[0] ... fr[31] */
+		pos = (offset - 32*4) + PT_FR0;
+	else if (offset < sizeof(struct pt_regs)/2 + 32*4) /* sr[0] ... ipsw */
+		pos = (offset - 32*4 - 32*8) * 2 + PT_SR0 + 4;
 	else
-		return sizeof(struct pt_regs);
+		pos = sizeof(struct pt_regs);
+
+	return pos;
 }
 
 long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
@@ -285,9 +290,12 @@ long compat_arch_ptrace(struct task_stru
 			addr = translate_usr_offset(addr);
 			if (addr >= sizeof(struct pt_regs))
 				break;
+			if (addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4) {
+				data |= 3; /* ensure userspace privilege */
+			}
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
-				*(__u64 *) ((char *) task_regs(child) + addr) = data;
+				*(__u32 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
 			else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 169/293] powerpc/32s: fix suspend/resume when IBATs 4-7 are used
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (167 preceding siblings ...)
  2019-07-29 19:20 ` [PATCH 4.14 168/293] parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1 Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 170/293] powerpc/watchpoint: Restore NV GPRs while returning from exception Greg Kroah-Hartman
                   ` (129 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andreas Schwab, Christophe Leroy,
	Michael Ellerman

From: Christophe Leroy <christophe.leroy@c-s.fr>

commit 6ecb78ef56e08d2119d337ae23cb951a640dc52d upstream.

Previously, only IBAT1 and IBAT2 were used to map kernel linear mem.
Since commit 63b2bc619565 ("powerpc/mm/32s: Use BATs for
STRICT_KERNEL_RWX"), we may have all 8 BATs used for mapping
kernel text. But the suspend/restore functions only save/restore
BATs 0 to 3, and clears BATs 4 to 7.

Make suspend and restore functions respectively save and reload
the 8 BATs on CPUs having MMU_FTR_USE_HIGH_BATS feature.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/powerpc/kernel/swsusp_32.S         |   73 ++++++++++++++++++++++++++++----
 arch/powerpc/platforms/powermac/sleep.S |   68 +++++++++++++++++++++++++++--
 2 files changed, 128 insertions(+), 13 deletions(-)

--- a/arch/powerpc/kernel/swsusp_32.S
+++ b/arch/powerpc/kernel/swsusp_32.S
@@ -24,11 +24,19 @@
 #define SL_IBAT2	0x48
 #define SL_DBAT3	0x50
 #define SL_IBAT3	0x58
-#define SL_TB		0x60
-#define SL_R2		0x68
-#define SL_CR		0x6c
-#define SL_LR		0x70
-#define SL_R12		0x74	/* r12 to r31 */
+#define SL_DBAT4	0x60
+#define SL_IBAT4	0x68
+#define SL_DBAT5	0x70
+#define SL_IBAT5	0x78
+#define SL_DBAT6	0x80
+#define SL_IBAT6	0x88
+#define SL_DBAT7	0x90
+#define SL_IBAT7	0x98
+#define SL_TB		0xa0
+#define SL_R2		0xa8
+#define SL_CR		0xac
+#define SL_LR		0xb0
+#define SL_R12		0xb4	/* r12 to r31 */
 #define SL_SIZE		(SL_R12 + 80)
 
 	.section .data
@@ -113,6 +121,41 @@ _GLOBAL(swsusp_arch_suspend)
 	mfibatl	r4,3
 	stw	r4,SL_IBAT3+4(r11)
 
+BEGIN_MMU_FTR_SECTION
+	mfspr	r4,SPRN_DBAT4U
+	stw	r4,SL_DBAT4(r11)
+	mfspr	r4,SPRN_DBAT4L
+	stw	r4,SL_DBAT4+4(r11)
+	mfspr	r4,SPRN_DBAT5U
+	stw	r4,SL_DBAT5(r11)
+	mfspr	r4,SPRN_DBAT5L
+	stw	r4,SL_DBAT5+4(r11)
+	mfspr	r4,SPRN_DBAT6U
+	stw	r4,SL_DBAT6(r11)
+	mfspr	r4,SPRN_DBAT6L
+	stw	r4,SL_DBAT6+4(r11)
+	mfspr	r4,SPRN_DBAT7U
+	stw	r4,SL_DBAT7(r11)
+	mfspr	r4,SPRN_DBAT7L
+	stw	r4,SL_DBAT7+4(r11)
+	mfspr	r4,SPRN_IBAT4U
+	stw	r4,SL_IBAT4(r11)
+	mfspr	r4,SPRN_IBAT4L
+	stw	r4,SL_IBAT4+4(r11)
+	mfspr	r4,SPRN_IBAT5U
+	stw	r4,SL_IBAT5(r11)
+	mfspr	r4,SPRN_IBAT5L
+	stw	r4,SL_IBAT5+4(r11)
+	mfspr	r4,SPRN_IBAT6U
+	stw	r4,SL_IBAT6(r11)
+	mfspr	r4,SPRN_IBAT6L
+	stw	r4,SL_IBAT6+4(r11)
+	mfspr	r4,SPRN_IBAT7U
+	stw	r4,SL_IBAT7(r11)
+	mfspr	r4,SPRN_IBAT7L
+	stw	r4,SL_IBAT7+4(r11)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
+
 #if  0
 	/* Backup various CPU config stuffs */
 	bl	__save_cpu_setup
@@ -278,27 +321,41 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	mtibatu	3,r4
 	lwz	r4,SL_IBAT3+4(r11)
 	mtibatl	3,r4
-#endif
-
 BEGIN_MMU_FTR_SECTION
-	li	r4,0
+	lwz	r4,SL_DBAT4(r11)
 	mtspr	SPRN_DBAT4U,r4
+	lwz	r4,SL_DBAT4+4(r11)
 	mtspr	SPRN_DBAT4L,r4
+	lwz	r4,SL_DBAT5(r11)
 	mtspr	SPRN_DBAT5U,r4
+	lwz	r4,SL_DBAT5+4(r11)
 	mtspr	SPRN_DBAT5L,r4
+	lwz	r4,SL_DBAT6(r11)
 	mtspr	SPRN_DBAT6U,r4
+	lwz	r4,SL_DBAT6+4(r11)
 	mtspr	SPRN_DBAT6L,r4
+	lwz	r4,SL_DBAT7(r11)
 	mtspr	SPRN_DBAT7U,r4
+	lwz	r4,SL_DBAT7+4(r11)
 	mtspr	SPRN_DBAT7L,r4
+	lwz	r4,SL_IBAT4(r11)
 	mtspr	SPRN_IBAT4U,r4
+	lwz	r4,SL_IBAT4+4(r11)
 	mtspr	SPRN_IBAT4L,r4
+	lwz	r4,SL_IBAT5(r11)
 	mtspr	SPRN_IBAT5U,r4
+	lwz	r4,SL_IBAT5+4(r11)
 	mtspr	SPRN_IBAT5L,r4
+	lwz	r4,SL_IBAT6(r11)
 	mtspr	SPRN_IBAT6U,r4
+	lwz	r4,SL_IBAT6+4(r11)
 	mtspr	SPRN_IBAT6L,r4
+	lwz	r4,SL_IBAT7(r11)
 	mtspr	SPRN_IBAT7U,r4
+	lwz	r4,SL_IBAT7+4(r11)
 	mtspr	SPRN_IBAT7L,r4
 END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
+#endif
 
 	/* Flush all TLBs */
 	lis	r4,0x1000
--- a/arch/powerpc/platforms/powermac/sleep.S
+++ b/arch/powerpc/platforms/powermac/sleep.S
@@ -37,10 +37,18 @@
 #define SL_IBAT2	0x48
 #define SL_DBAT3	0x50
 #define SL_IBAT3	0x58
-#define SL_TB		0x60
-#define SL_R2		0x68
-#define SL_CR		0x6c
-#define SL_R12		0x70	/* r12 to r31 */
+#define SL_DBAT4	0x60
+#define SL_IBAT4	0x68
+#define SL_DBAT5	0x70
+#define SL_IBAT5	0x78
+#define SL_DBAT6	0x80
+#define SL_IBAT6	0x88
+#define SL_DBAT7	0x90
+#define SL_IBAT7	0x98
+#define SL_TB		0xa0
+#define SL_R2		0xa8
+#define SL_CR		0xac
+#define SL_R12		0xb0	/* r12 to r31 */
 #define SL_SIZE		(SL_R12 + 80)
 
 	.section .text
@@ -125,6 +133,41 @@ _GLOBAL(low_sleep_handler)
 	mfibatl	r4,3
 	stw	r4,SL_IBAT3+4(r1)
 
+BEGIN_MMU_FTR_SECTION
+	mfspr	r4,SPRN_DBAT4U
+	stw	r4,SL_DBAT4(r1)
+	mfspr	r4,SPRN_DBAT4L
+	stw	r4,SL_DBAT4+4(r1)
+	mfspr	r4,SPRN_DBAT5U
+	stw	r4,SL_DBAT5(r1)
+	mfspr	r4,SPRN_DBAT5L
+	stw	r4,SL_DBAT5+4(r1)
+	mfspr	r4,SPRN_DBAT6U
+	stw	r4,SL_DBAT6(r1)
+	mfspr	r4,SPRN_DBAT6L
+	stw	r4,SL_DBAT6+4(r1)
+	mfspr	r4,SPRN_DBAT7U
+	stw	r4,SL_DBAT7(r1)
+	mfspr	r4,SPRN_DBAT7L
+	stw	r4,SL_DBAT7+4(r1)
+	mfspr	r4,SPRN_IBAT4U
+	stw	r4,SL_IBAT4(r1)
+	mfspr	r4,SPRN_IBAT4L
+	stw	r4,SL_IBAT4+4(r1)
+	mfspr	r4,SPRN_IBAT5U
+	stw	r4,SL_IBAT5(r1)
+	mfspr	r4,SPRN_IBAT5L
+	stw	r4,SL_IBAT5+4(r1)
+	mfspr	r4,SPRN_IBAT6U
+	stw	r4,SL_IBAT6(r1)
+	mfspr	r4,SPRN_IBAT6L
+	stw	r4,SL_IBAT6+4(r1)
+	mfspr	r4,SPRN_IBAT7U
+	stw	r4,SL_IBAT7(r1)
+	mfspr	r4,SPRN_IBAT7L
+	stw	r4,SL_IBAT7+4(r1)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
+
 	/* Backup various CPU config stuffs */
 	bl	__save_cpu_setup
 
@@ -325,22 +368,37 @@ grackle_wake_up:
 	mtibatl	3,r4
 
 BEGIN_MMU_FTR_SECTION
-	li	r4,0
+	lwz	r4,SL_DBAT4(r1)
 	mtspr	SPRN_DBAT4U,r4
+	lwz	r4,SL_DBAT4+4(r1)
 	mtspr	SPRN_DBAT4L,r4
+	lwz	r4,SL_DBAT5(r1)
 	mtspr	SPRN_DBAT5U,r4
+	lwz	r4,SL_DBAT5+4(r1)
 	mtspr	SPRN_DBAT5L,r4
+	lwz	r4,SL_DBAT6(r1)
 	mtspr	SPRN_DBAT6U,r4
+	lwz	r4,SL_DBAT6+4(r1)
 	mtspr	SPRN_DBAT6L,r4
+	lwz	r4,SL_DBAT7(r1)
 	mtspr	SPRN_DBAT7U,r4
+	lwz	r4,SL_DBAT7+4(r1)
 	mtspr	SPRN_DBAT7L,r4
+	lwz	r4,SL_IBAT4(r1)
 	mtspr	SPRN_IBAT4U,r4
+	lwz	r4,SL_IBAT4+4(r1)
 	mtspr	SPRN_IBAT4L,r4
+	lwz	r4,SL_IBAT5(r1)
 	mtspr	SPRN_IBAT5U,r4
+	lwz	r4,SL_IBAT5+4(r1)
 	mtspr	SPRN_IBAT5L,r4
+	lwz	r4,SL_IBAT6(r1)
 	mtspr	SPRN_IBAT6U,r4
+	lwz	r4,SL_IBAT6+4(r1)
 	mtspr	SPRN_IBAT6L,r4
+	lwz	r4,SL_IBAT7(r1)
 	mtspr	SPRN_IBAT7U,r4
+	lwz	r4,SL_IBAT7+4(r1)
 	mtspr	SPRN_IBAT7L,r4
 END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 170/293] powerpc/watchpoint: Restore NV GPRs while returning from exception
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (168 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 169/293] powerpc/32s: fix suspend/resume when IBATs 4-7 are used Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 171/293] eCryptfs: fix a couple type promotion bugs Greg Kroah-Hartman
                   ` (128 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Ravi Bangoria, Michael Ellerman

From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>

commit f474c28fbcbe42faca4eb415172c07d76adcb819 upstream.

powerpc hardware triggers watchpoint before executing the instruction.
To make trigger-after-execute behavior, kernel emulates the
instruction. If the instruction is 'load something into non-volatile
register', exception handler should restore emulated register state
while returning back, otherwise there will be register state
corruption. eg, adding a watchpoint on a list can corrput the list:

  # cat /proc/kallsyms | grep kthread_create_list
  c00000000121c8b8 d kthread_create_list

Add watchpoint on kthread_create_list->prev:

  # perf record -e mem:0xc00000000121c8c0

Run some workload such that new kthread gets invoked. eg, I just
logged out from console:

  list_add corruption. next->prev should be prev (c000000001214e00), \
	but was c00000000121c8b8. (next=c00000000121c8b8).
  WARNING: CPU: 59 PID: 309 at lib/list_debug.c:25 __list_add_valid+0xb4/0xc0
  CPU: 59 PID: 309 Comm: kworker/59:0 Kdump: loaded Not tainted 5.1.0-rc7+ #69
  ...
  NIP __list_add_valid+0xb4/0xc0
  LR __list_add_valid+0xb0/0xc0
  Call Trace:
  __list_add_valid+0xb0/0xc0 (unreliable)
  __kthread_create_on_node+0xe0/0x260
  kthread_create_on_node+0x34/0x50
  create_worker+0xe8/0x260
  worker_thread+0x444/0x560
  kthread+0x160/0x1a0
  ret_from_kernel_thread+0x5c/0x70

List corruption happened because it uses 'load into non-volatile
register' instruction:

Snippet from __kthread_create_on_node:

  c000000000136be8:     addis   r29,r2,-19
  c000000000136bec:     ld      r29,31424(r29)
        if (!__list_add_valid(new, prev, next))
  c000000000136bf0:     mr      r3,r30
  c000000000136bf4:     mr      r5,r28
  c000000000136bf8:     mr      r4,r29
  c000000000136bfc:     bl      c00000000059a2f8 <__list_add_valid+0x8>

Register state from WARN_ON():

  GPR00: c00000000059a3a0 c000007ff23afb50 c000000001344e00 0000000000000075
  GPR04: 0000000000000000 0000000000000000 0000001852af8bc1 0000000000000000
  GPR08: 0000000000000001 0000000000000007 0000000000000006 00000000000004aa
  GPR12: 0000000000000000 c000007ffffeb080 c000000000137038 c000005ff62aaa00
  GPR16: 0000000000000000 0000000000000000 c000007fffbe7600 c000007fffbe7370
  GPR20: c000007fffbe7320 c000007fffbe7300 c000000001373a00 0000000000000000
  GPR24: fffffffffffffef7 c00000000012e320 c000007ff23afcb0 c000000000cb8628
  GPR28: c00000000121c8b8 c000000001214e00 c000007fef5b17e8 c000007fef5b17c0

Watchpoint hit at 0xc000000000136bec.

  addis   r29,r2,-19
   => r29 = 0xc000000001344e00 + (-19 << 16)
   => r29 = 0xc000000001214e00

  ld      r29,31424(r29)
   => r29 = *(0xc000000001214e00 + 31424)
   => r29 = *(0xc00000000121c8c0)

0xc00000000121c8c0 is where we placed a watchpoint and thus this
instruction was emulated by emulate_step. But because handle_dabr_fault
did not restore emulated register state, r29 still contains stale
value in above register state.

Fixes: 5aae8a5370802 ("powerpc, hw_breakpoints: Implement hw_breakpoints for 64-bit server processors")
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: stable@vger.kernel.org # 2.6.36+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/powerpc/kernel/exceptions-64s.S |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1675,7 +1675,7 @@ handle_page_fault:
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	do_page_fault
 	cmpdi	r3,0
-	beq+	12f
+	beq+	ret_from_except_lite
 	bl	save_nvgprs
 	mr	r5,r3
 	addi	r3,r1,STACK_FRAME_OVERHEAD
@@ -1690,7 +1690,12 @@ handle_dabr_fault:
 	ld      r5,_DSISR(r1)
 	addi    r3,r1,STACK_FRAME_OVERHEAD
 	bl      do_break
-12:	b       ret_from_except_lite
+	/*
+	 * do_break() may have changed the NV GPRS while handling a breakpoint.
+	 * If so, we need to restore them with their updated values. Don't use
+	 * ret_from_except_lite here.
+	 */
+	b       ret_from_except
 
 
 #ifdef CONFIG_PPC_STD_MMU_64



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 171/293] eCryptfs: fix a couple type promotion bugs
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (169 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 170/293] powerpc/watchpoint: Restore NV GPRs while returning from exception Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 172/293] intel_th: msu: Fix single mode with disabled IOMMU Greg Kroah-Hartman
                   ` (127 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Tyler Hicks

From: Dan Carpenter <dan.carpenter@oracle.com>

commit 0bdf8a8245fdea6f075a5fede833a5fcf1b3466c upstream.

ECRYPTFS_SIZE_AND_MARKER_BYTES is type size_t, so if "rc" is negative
that gets type promoted to a high positive value and treated as success.

Fixes: 778aeb42a708 ("eCryptfs: Cleanup and optimize ecryptfs_lookup_interpose()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[tyhicks: Use "if/else if" rather than "if/if"]
Cc: stable@vger.kernel.org
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ecryptfs/crypto.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1034,8 +1034,10 @@ int ecryptfs_read_and_validate_header_re
 
 	rc = ecryptfs_read_lower(file_size, 0, ECRYPTFS_SIZE_AND_MARKER_BYTES,
 				 inode);
-	if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
-		return rc >= 0 ? -EINVAL : rc;
+	if (rc < 0)
+		return rc;
+	else if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
+		return -EINVAL;
 	rc = ecryptfs_validate_marker(marker);
 	if (!rc)
 		ecryptfs_i_size_init(file_size, inode);
@@ -1397,8 +1399,10 @@ int ecryptfs_read_and_validate_xattr_reg
 				     ecryptfs_inode_to_lower(inode),
 				     ECRYPTFS_XATTR_NAME, file_size,
 				     ECRYPTFS_SIZE_AND_MARKER_BYTES);
-	if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
-		return rc >= 0 ? -EINVAL : rc;
+	if (rc < 0)
+		return rc;
+	else if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
+		return -EINVAL;
 	rc = ecryptfs_validate_marker(marker);
 	if (!rc)
 		ecryptfs_i_size_init(file_size, inode);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 172/293] intel_th: msu: Fix single mode with disabled IOMMU
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (170 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 171/293] eCryptfs: fix a couple type promotion bugs Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 173/293] Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug Greg Kroah-Hartman
                   ` (126 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Alexander Shishkin, Andy Shevchenko, Ammy Yi

From: Alexander Shishkin <alexander.shishkin@linux.intel.com>

commit 918b8646497b5dba6ae82d4a7325f01b258972b9 upstream.

Commit 4e0eaf239fb3 ("intel_th: msu: Fix single mode with IOMMU") switched
the single mode code to use dma mapping pages obtained from the page
allocator, but with IOMMU disabled, that may lead to using SWIOTLB bounce
buffers and without additional sync'ing, produces empty trace buffers.

Fix this by using a DMA32 GFP flag to the page allocation in single mode,
as the device supports full 32-bit DMA addressing.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 4e0eaf239fb3 ("intel_th: msu: Fix single mode with IOMMU")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: Ammy Yi <ammy.yi@intel.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190621161930.60785-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/hwtracing/intel_th/msu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -640,7 +640,7 @@ static int msc_buffer_contig_alloc(struc
 		goto err_out;
 
 	ret = -ENOMEM;
-	page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order);
+	page = alloc_pages(GFP_KERNEL | __GFP_ZERO | GFP_DMA32, order);
 	if (!page)
 		goto err_free_sgt;
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 173/293] Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (171 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 172/293] intel_th: msu: Fix single mode with disabled IOMMU Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 174/293] usb: Handle USB3 remote wakeup for LPM enabled devices correctly Greg Kroah-Hartman
                   ` (125 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Szymon Janc, Maarten Fonville,
	Marcel Holtmann

From: Szymon Janc <szymon.janc@codecoup.pl>

commit 1d87b88ba26eabd4745e158ecfd87c93a9b51dc2 upstream.

Microsoft Surface Precision Mouse provides bogus identity address when
pairing. It connects with Static Random address but provides Public
Address in SMP Identity Address Information PDU. Address has same
value but type is different. Workaround this by dropping IRK if ID
address discrepancy is detected.

> HCI Event: LE Meta Event (0x3e) plen 19
      LE Connection Complete (0x01)
        Status: Success (0x00)
        Handle: 75
        Role: Master (0x00)
        Peer address type: Random (0x01)
        Peer address: E0:52:33:93:3B:21 (Static)
        Connection interval: 50.00 msec (0x0028)
        Connection latency: 0 (0x0000)
        Supervision timeout: 420 msec (0x002a)
        Master clock accuracy: 0x00

....

> ACL Data RX: Handle 75 flags 0x02 dlen 12
      SMP: Identity Address Information (0x09) len 7
        Address type: Public (0x00)
        Address: E0:52:33:93:3B:21

Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Tested-by: Maarten Fonville <maarten.fonville@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199461
Cc: stable@vger.kernel.org
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/bluetooth/smp.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2571,6 +2571,19 @@ static int smp_cmd_ident_addr_info(struc
 		goto distribute;
 	}
 
+	/* Drop IRK if peer is using identity address during pairing but is
+	 * providing different address as identity information.
+	 *
+	 * Microsoft Surface Precision Mouse is known to have this bug.
+	 */
+	if (hci_is_identity_address(&hcon->dst, hcon->dst_type) &&
+	    (bacmp(&info->bdaddr, &hcon->dst) ||
+	     info->addr_type != hcon->dst_type)) {
+		bt_dev_err(hcon->hdev,
+			   "ignoring IRK with invalid identity address");
+		goto distribute;
+	}
+
 	bacpy(&smp->id_addr, &info->bdaddr);
 	smp->id_addr_type = info->addr_type;
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 174/293] usb: Handle USB3 remote wakeup for LPM enabled devices correctly
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (172 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 173/293] Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 175/293] net: mvmdio: allow up to four clocks to be specified for orion-mdio Greg Kroah-Hartman
                   ` (124 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Lee, Chiasheng, Mathias Nyman, Lee

From: Lee, Chiasheng <chiasheng.lee@intel.com>

commit e244c4699f859cf7149b0781b1894c7996a8a1df upstream.

With Link Power Management (LPM) enabled USB3 links transition to low
power U1/U2 link states from U0 state automatically.

Current hub code detects USB3 remote wakeups by checking if the software
state still shows suspended, but the link has transitioned from suspended
U3 to enabled U0 state.

As it takes some time before the hub thread reads the port link state
after a USB3 wake notification, the link may have transitioned from U0
to U1/U2, and wake is not detected by hub code.

Fix this by handling U1/U2 states in the same way as U0 in USB3 wakeup
handling

This patch should be added to stable kernels since 4.13 where LPM was
kept enabled during suspend/resume

Cc: <stable@vger.kernel.org> # v4.13+
Signed-off-by: Lee, Chiasheng <chiasheng.lee@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/hub.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3532,6 +3532,7 @@ static int hub_handle_remote_wakeup(stru
 	struct usb_device *hdev;
 	struct usb_device *udev;
 	int connect_change = 0;
+	u16 link_state;
 	int ret;
 
 	hdev = hub->hdev;
@@ -3541,9 +3542,11 @@ static int hub_handle_remote_wakeup(stru
 			return 0;
 		usb_clear_port_feature(hdev, port, USB_PORT_FEAT_C_SUSPEND);
 	} else {
+		link_state = portstatus & USB_PORT_STAT_LINK_STATE;
 		if (!udev || udev->state != USB_STATE_SUSPENDED ||
-				 (portstatus & USB_PORT_STAT_LINK_STATE) !=
-				 USB_SS_PORT_LS_U0)
+				(link_state != USB_SS_PORT_LS_U0 &&
+				 link_state != USB_SS_PORT_LS_U1 &&
+				 link_state != USB_SS_PORT_LS_U2))
 			return 0;
 	}
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 175/293] net: mvmdio: allow up to four clocks to be specified for orion-mdio
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (173 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 174/293] usb: Handle USB3 remote wakeup for LPM enabled devices correctly Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 176/293] dt-bindings: allow up to four clocks " Greg Kroah-Hartman
                   ` (123 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andrew Lunn, Josua Mayer, David S. Miller

From: Josua Mayer <josua@solid-run.com>

commit 4aabed699c400810981d3dda170f05fa4d782905 upstream.

Allow up to four clocks to be specified and enabled for the orion-mdio
interface, which are required by the Armada 8k and defined in
armada-cp110.dtsi.

Fixes a hang in probing the mvmdio driver that was encountered on the
Clearfog GT 8K with all drivers built as modules, but also affects other
boards such as the MacchiatoBIN.

Cc: stable@vger.kernel.org
Fixes: 96cb43423822 ("net: mvmdio: allow up to three clocks to be specified for orion-mdio")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/ethernet/marvell/mvmdio.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -64,7 +64,7 @@
 
 struct orion_mdio_dev {
 	void __iomem *regs;
-	struct clk *clk[3];
+	struct clk *clk[4];
 	/*
 	 * If we have access to the error interrupt pin (which is
 	 * somewhat misnamed as it not only reflects internal errors



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 176/293] dt-bindings: allow up to four clocks for orion-mdio
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (174 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 175/293] net: mvmdio: allow up to four clocks to be specified for orion-mdio Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 177/293] dm bufio: fix deadlock with loop device Greg Kroah-Hartman
                   ` (122 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andrew Lunn, Josua Mayer, David S. Miller

From: Josua Mayer <josua@solid-run.com>

commit 80785f5a22e9073e2ded5958feb7f220e066d17b upstream.

Armada 8040 needs four clocks to be enabled for MDIO accesses to work.
Update the binding to allow the extra clock to be specified.

Cc: stable@vger.kernel.org
Fixes: 6d6a331f44a1 ("dt-bindings: allow up to three clocks for orion-mdio")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 Documentation/devicetree/bindings/net/marvell-orion-mdio.txt |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
+++ b/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
@@ -16,7 +16,7 @@ Required properties:
 
 Optional properties:
 - interrupts: interrupt line number for the SMI error/done interrupt
-- clocks: phandle for up to three required clocks for the MDIO instance
+- clocks: phandle for up to four required clocks for the MDIO instance
 
 The child nodes of the MDIO driver are the individual PHY devices
 connected to this MDIO bus. They must have a "reg" property given the



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 177/293] dm bufio: fix deadlock with loop device
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (175 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 176/293] dt-bindings: allow up to four clocks " Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 178/293] compiler.h, kasan: Avoid duplicating __read_once_size_nocheck() Greg Kroah-Hartman
                   ` (121 subsequent siblings)
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From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Junxiao Bi, Mike Snitzer

From: Junxiao Bi <junxiao.bi@oracle.com>

commit bd293d071ffe65e645b4d8104f9d8fe15ea13862 upstream.

When thin-volume is built on loop device, if available memory is low,
the following deadlock can be triggered:

One process P1 allocates memory with GFP_FS flag, direct alloc fails,
memory reclaim invokes memory shrinker in dm_bufio, dm_bufio_shrink_scan()
runs, mutex dm_bufio_client->lock is acquired, then P1 waits for dm_buffer
IO to complete in __try_evict_buffer().

But this IO may never complete if issued to an underlying loop device
that forwards it using direct-IO, which allocates memory using
GFP_KERNEL (see: do_blockdev_direct_IO()).  If allocation fails, memory
reclaim will invoke memory shrinker in dm_bufio, dm_bufio_shrink_scan()
will be invoked, and since the mutex is already held by P1 the loop
thread will hang, and IO will never complete.  Resulting in ABBA
deadlock.

Cc: stable@vger.kernel.org
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/md/dm-bufio.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1630,9 +1630,7 @@ dm_bufio_shrink_scan(struct shrinker *sh
 	unsigned long freed;
 
 	c = container_of(shrink, struct dm_bufio_client, shrinker);
-	if (sc->gfp_mask & __GFP_FS)
-		dm_bufio_lock(c);
-	else if (!dm_bufio_trylock(c))
+	if (!dm_bufio_trylock(c))
 		return SHRINK_STOP;
 
 	freed  = __scan(c, sc->nr_to_scan, sc->gfp_mask);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 178/293] compiler.h, kasan: Avoid duplicating __read_once_size_nocheck()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (176 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 177/293] dm bufio: fix deadlock with loop device Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 179/293] compiler.h: Add read_word_at_a_time() function Greg Kroah-Hartman
                   ` (120 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andrey Ryabinin, Linus Torvalds, Sasha Levin

[ Upstream commit bdb5ac801af3d81d36732c2f640d6a1d3df83826 ]

Instead of having two identical __read_once_size_nocheck() functions
with different attributes, consolidate all the difference in new macro
__no_kasan_or_inline and use it. No functional changes.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/compiler.h | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index a704d032713b..f490d8d93ec3 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -185,23 +185,21 @@ void __read_once_size(const volatile void *p, void *res, int size)
 
 #ifdef CONFIG_KASAN
 /*
- * This function is not 'inline' because __no_sanitize_address confilcts
+ * We can't declare function 'inline' because __no_sanitize_address confilcts
  * with inlining. Attempt to inline it may cause a build failure.
  * 	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
  * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
  */
-static __no_sanitize_address __maybe_unused
-void __read_once_size_nocheck(const volatile void *p, void *res, int size)
-{
-	__READ_ONCE_SIZE;
-}
+# define __no_kasan_or_inline __no_sanitize_address __maybe_unused
 #else
-static __always_inline
+# define __no_kasan_or_inline __always_inline
+#endif
+
+static __no_kasan_or_inline
 void __read_once_size_nocheck(const volatile void *p, void *res, int size)
 {
 	__READ_ONCE_SIZE;
 }
-#endif
 
 static __always_inline void __write_once_size(volatile void *p, void *res, int size)
 {
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 179/293] compiler.h: Add read_word_at_a_time() function.
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (177 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 178/293] compiler.h, kasan: Avoid duplicating __read_once_size_nocheck() Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 180/293] lib/strscpy: Shut up KASAN false-positives in strscpy() Greg Kroah-Hartman
                   ` (119 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andrey Ryabinin, Linus Torvalds, Sasha Levin

[ Upstream commit 7f1e541fc8d57a143dd5df1d0a1276046e08c083 ]

Sometimes we know that it's safe to do potentially out-of-bounds access
because we know it won't cross a page boundary.  Still, KASAN will
report this as a bug.

Add read_word_at_a_time() function which is supposed to be used in such
cases.  In read_word_at_a_time() KASAN performs relaxed check - only the
first byte of access is validated.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/compiler.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index f490d8d93ec3..f84d332085c3 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -238,6 +238,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  * required ordering.
  */
 #include <asm/barrier.h>
+#include <linux/kasan-checks.h>
 
 #define __READ_ONCE(x, check)						\
 ({									\
@@ -257,6 +258,13 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  */
 #define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
 
+static __no_kasan_or_inline
+unsigned long read_word_at_a_time(const void *addr)
+{
+	kasan_check_read(addr, 1);
+	return *(unsigned long *)addr;
+}
+
 #define WRITE_ONCE(x, val) \
 ({							\
 	union { typeof(x) __val; char __c[1]; } __u =	\
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 180/293] lib/strscpy: Shut up KASAN false-positives in strscpy()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (178 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 179/293] compiler.h: Add read_word_at_a_time() function Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 181/293] bnx2x: Prevent load reordering in tx completion processing Greg Kroah-Hartman
                   ` (118 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andrey Ryabinin, Linus Torvalds, Sasha Levin

[ Upstream commit 1a3241ff10d038ecd096d03380327f2a0b5840a6 ]

strscpy() performs the word-at-a-time optimistic reads.  So it may may
access the memory past the end of the object, which is perfectly fine
since strscpy() doesn't use that (past-the-end) data and makes sure the
optimistic read won't cross a page boundary.

Use new read_word_at_a_time() to shut up the KASAN.

Note that this potentially could hide some bugs.  In example bellow,
stscpy() will copy more than we should (1-3 extra uninitialized bytes):

        char dst[8];
        char *src;

        src = kmalloc(5, GFP_KERNEL);
        memset(src, 0xff, 5);
        strscpy(dst, src, 8);

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/string.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/string.c b/lib/string.c
index 1530643edf00..33befc6ba3fa 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -203,7 +203,7 @@ ssize_t strscpy(char *dest, const char *src, size_t count)
 	while (max >= sizeof(unsigned long)) {
 		unsigned long c, data;
 
-		c = *(unsigned long *)(src+res);
+		c = read_word_at_a_time(src+res);
 		if (has_zero(c, &data, &constants)) {
 			data = prep_zero_mask(c, data, &constants);
 			data = create_zero_mask(data);
-- 
2.20.1




^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 181/293] bnx2x: Prevent load reordering in tx completion processing
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (179 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 180/293] lib/strscpy: Shut up KASAN false-positives in strscpy() Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 182/293] bnx2x: Prevent ptp_task to be rescheduled indefinitely Greg Kroah-Hartman
                   ` (117 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Brian King, David S. Miller

From: Brian King <brking@linux.vnet.ibm.com>

[ Upstream commit ea811b795df24644a8eb760b493c43fba4450677 ]

This patch fixes an issue seen on Power systems with bnx2x which results
in the skb is NULL WARN_ON in bnx2x_free_tx_pkt firing due to the skb
pointer getting loaded in bnx2x_free_tx_pkt prior to the hw_cons
load in bnx2x_tx_int. Adding a read memory barrier resolves the issue.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -286,6 +286,9 @@ int bnx2x_tx_int(struct bnx2x *bp, struc
 	hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
 	sw_cons = txdata->tx_pkt_cons;
 
+	/* Ensure subsequent loads occur after hw_cons */
+	smp_rmb();
+
 	while (sw_cons != hw_cons) {
 		u16 pkt_cons;
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 182/293] bnx2x: Prevent ptp_task to be rescheduled indefinitely
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (180 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 181/293] bnx2x: Prevent load reordering in tx completion processing Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 183/293] caif-hsi: fix possible deadlock in cfhsi_exit_module() Greg Kroah-Hartman
                   ` (116 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Sudarsana Reddy Kalluru,
	Guilherme G. Piccoli, David S. Miller, Przemyslaw Hausman

From: "Guilherme G. Piccoli" <gpiccoli@canonical.com>

[ Upstream commit 3c91f25c2f72ba6001775a5932857c1d2131c531 ]

Currently bnx2x ptp worker tries to read a register with timestamp
information in case of TX packet timestamping and in case it fails,
the routine reschedules itself indefinitely. This was reported as a
kworker always at 100% of CPU usage, which was narrowed down to be
bnx2x ptp_task.

By following the ioctl handler, we could narrow down the problem to
an NTP tool (chrony) requesting HW timestamping from bnx2x NIC with
RX filter zeroed; this isn't reproducible for example with ptp4l
(from linuxptp) since this tool requests a supported RX filter.
It seems NIC FW timestamp mechanism cannot work well with
RX_FILTER_NONE - driver's PTP filter init routine skips a register
write to the adapter if there's not a supported filter request.

This patch addresses the problem of bnx2x ptp thread's everlasting
reschedule by retrying the register read 10 times; between the read
attempts the thread sleeps for an increasing amount of time starting
in 1ms to give FW some time to perform the timestamping. If it still
fails after all retries, we bail out in order to prevent an unbound
resource consumption from bnx2x.

The patch also adds an ethtool statistic for accounting the skipped
TX timestamp packets and it reduces the priority of timestamping
error messages to prevent log flooding. The code was tested using
both linuxptp and chrony.

Reported-and-tested-by: Przemyslaw Hausman <przemyslaw.hausman@canonical.com>
Suggested-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c     |    5 ++-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c |    4 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c    |   33 ++++++++++++++------
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h   |    3 +
 4 files changed, 34 insertions(+), 11 deletions(-)

--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3859,9 +3859,12 @@ netdev_tx_t bnx2x_start_xmit(struct sk_b
 
 	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
 		if (!(bp->flags & TX_TIMESTAMPING_EN)) {
+			bp->eth_stats.ptp_skip_tx_ts++;
 			BNX2X_ERR("Tx timestamping was not enabled, this packet will not be timestamped\n");
 		} else if (bp->ptp_tx_skb) {
-			BNX2X_ERR("The device supports only a single outstanding packet to timestamp, this packet will not be timestamped\n");
+			bp->eth_stats.ptp_skip_tx_ts++;
+			dev_err_once(&bp->dev->dev,
+					"Device supports only a single outstanding packet to timestamp, this packet won't be timestamped\n");
 		} else {
 			skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
 			/* schedule check for Tx timestamp */
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -182,7 +182,9 @@ static const struct {
 	{ STATS_OFFSET32(driver_filtered_tx_pkt),
 				4, false, "driver_filtered_tx_pkt" },
 	{ STATS_OFFSET32(eee_tx_lpi),
-				4, true, "Tx LPI entry count"}
+				4, true, "Tx LPI entry count"},
+	{ STATS_OFFSET32(ptp_skip_tx_ts),
+				4, false, "ptp_skipped_tx_tstamp" },
 };
 
 #define BNX2X_NUM_STATS		ARRAY_SIZE(bnx2x_stats_arr)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -15264,11 +15264,24 @@ static void bnx2x_ptp_task(struct work_s
 	u32 val_seq;
 	u64 timestamp, ns;
 	struct skb_shared_hwtstamps shhwtstamps;
+	bool bail = true;
+	int i;
 
-	/* Read Tx timestamp registers */
-	val_seq = REG_RD(bp, port ? NIG_REG_P1_TLLH_PTP_BUF_SEQID :
-			 NIG_REG_P0_TLLH_PTP_BUF_SEQID);
-	if (val_seq & 0x10000) {
+	/* FW may take a while to complete timestamping; try a bit and if it's
+	 * still not complete, may indicate an error state - bail out then.
+	 */
+	for (i = 0; i < 10; i++) {
+		/* Read Tx timestamp registers */
+		val_seq = REG_RD(bp, port ? NIG_REG_P1_TLLH_PTP_BUF_SEQID :
+				 NIG_REG_P0_TLLH_PTP_BUF_SEQID);
+		if (val_seq & 0x10000) {
+			bail = false;
+			break;
+		}
+		msleep(1 << i);
+	}
+
+	if (!bail) {
 		/* There is a valid timestamp value */
 		timestamp = REG_RD(bp, port ? NIG_REG_P1_TLLH_PTP_BUF_TS_MSB :
 				   NIG_REG_P0_TLLH_PTP_BUF_TS_MSB);
@@ -15283,16 +15296,18 @@ static void bnx2x_ptp_task(struct work_s
 		memset(&shhwtstamps, 0, sizeof(shhwtstamps));
 		shhwtstamps.hwtstamp = ns_to_ktime(ns);
 		skb_tstamp_tx(bp->ptp_tx_skb, &shhwtstamps);
-		dev_kfree_skb_any(bp->ptp_tx_skb);
-		bp->ptp_tx_skb = NULL;
 
 		DP(BNX2X_MSG_PTP, "Tx timestamp, timestamp cycles = %llu, ns = %llu\n",
 		   timestamp, ns);
 	} else {
-		DP(BNX2X_MSG_PTP, "There is no valid Tx timestamp yet\n");
-		/* Reschedule to keep checking for a valid timestamp value */
-		schedule_work(&bp->ptp_task);
+		DP(BNX2X_MSG_PTP,
+		   "Tx timestamp is not recorded (register read=%u)\n",
+		   val_seq);
+		bp->eth_stats.ptp_skip_tx_ts++;
 	}
+
+	dev_kfree_skb_any(bp->ptp_tx_skb);
+	bp->ptp_tx_skb = NULL;
 }
 
 void bnx2x_set_rx_ts(struct bnx2x *bp, struct sk_buff *skb)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
@@ -207,6 +207,9 @@ struct bnx2x_eth_stats {
 	u32 driver_filtered_tx_pkt;
 	/* src: Clear-on-Read register; Will not survive PMF Migration */
 	u32 eee_tx_lpi;
+
+	/* PTP */
+	u32 ptp_skip_tx_ts;
 };
 
 struct bnx2x_eth_q_stats {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 183/293] caif-hsi: fix possible deadlock in cfhsi_exit_module()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (181 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 182/293] bnx2x: Prevent ptp_task to be rescheduled indefinitely Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 184/293] igmp: fix memory leak in igmpv3_del_delrec() Greg Kroah-Hartman
                   ` (115 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Taehee Yoo, David S. Miller

From: Taehee Yoo <ap420073@gmail.com>

[ Upstream commit fdd258d49e88a9e0b49ef04a506a796f1c768a8e ]

cfhsi_exit_module() calls unregister_netdev() under rtnl_lock().
but unregister_netdev() internally calls rtnl_lock().
So deadlock would occur.

Fixes: c41254006377 ("caif-hsi: Add rtnl support")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/caif/caif_hsi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -1462,7 +1462,7 @@ static void __exit cfhsi_exit_module(voi
 	rtnl_lock();
 	list_for_each_safe(list_node, n, &cfhsi_list) {
 		cfhsi = list_entry(list_node, struct cfhsi, list);
-		unregister_netdev(cfhsi->ndev);
+		unregister_netdevice(cfhsi->ndev);
 	}
 	rtnl_unlock();
 }



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 184/293] igmp: fix memory leak in igmpv3_del_delrec()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (182 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 183/293] caif-hsi: fix possible deadlock in cfhsi_exit_module() Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 185/293] ipv4: dont set IPv6 only flags to IPv4 addresses Greg Kroah-Hartman
                   ` (114 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Hangbin Liu,
	syzbot+6ca1abd0db68b5173a4f, David S. Miller

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit e5b1c6c6277d5a283290a8c033c72544746f9b5b ]

im->tomb and/or im->sources might not be NULL, but we
currently overwrite their values blindly.

Using swap() will make sure the following call to kfree_pmc(pmc)
will properly free the psf structures.

Tested with the C repro provided by syzbot, which basically does :

 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
 setsockopt(3, SOL_IP, IP_ADD_MEMBERSHIP, "\340\0\0\2\177\0\0\1\0\0\0\0", 12) = 0
 ioctl(3, SIOCSIFFLAGS, {ifr_name="lo", ifr_flags=0}) = 0
 setsockopt(3, SOL_IP, IP_MSFILTER, "\340\0\0\2\177\0\0\1\1\0\0\0\1\0\0\0\377\377\377\377", 20) = 0
 ioctl(3, SIOCSIFFLAGS, {ifr_name="lo", ifr_flags=IFF_UP}) = 0
 exit_group(0)                    = ?

BUG: memory leak
unreferenced object 0xffff88811450f140 (size 64):
  comm "softirq", pid 0, jiffies 4294942448 (age 32.070s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 ff ff ff ff 00 00 00 00  ................
    00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000c7bad083>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000c7bad083>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<00000000c7bad083>] slab_alloc mm/slab.c:3326 [inline]
    [<00000000c7bad083>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
    [<000000009acc4151>] kmalloc include/linux/slab.h:547 [inline]
    [<000000009acc4151>] kzalloc include/linux/slab.h:742 [inline]
    [<000000009acc4151>] ip_mc_add1_src net/ipv4/igmp.c:1976 [inline]
    [<000000009acc4151>] ip_mc_add_src+0x36b/0x400 net/ipv4/igmp.c:2100
    [<000000004ac14566>] ip_mc_msfilter+0x22d/0x310 net/ipv4/igmp.c:2484
    [<0000000052d8f995>] do_ip_setsockopt.isra.0+0x1795/0x1930 net/ipv4/ip_sockglue.c:959
    [<000000004ee1e21f>] ip_setsockopt+0x3b/0xb0 net/ipv4/ip_sockglue.c:1248
    [<0000000066cdfe74>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2618
    [<000000009383a786>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3126
    [<00000000d8ac0c94>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
    [<000000001b1e9666>] __do_sys_setsockopt net/socket.c:2083 [inline]
    [<000000001b1e9666>] __se_sys_setsockopt net/socket.c:2080 [inline]
    [<000000001b1e9666>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
    [<00000000420d395e>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<000000007fd83a4b>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: 24803f38a5c0 ("igmp: do not remove igmp souce list info when set link down")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Hangbin Liu <liuhangbin@gmail.com>
Reported-by: syzbot+6ca1abd0db68b5173a4f@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/igmp.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1220,12 +1220,8 @@ static void igmpv3_del_delrec(struct in_
 		im->interface = pmc->interface;
 		im->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
 		if (im->sfmode == MCAST_INCLUDE) {
-			im->tomb = pmc->tomb;
-			pmc->tomb = NULL;
-
-			im->sources = pmc->sources;
-			pmc->sources = NULL;
-
+			swap(im->tomb, pmc->tomb);
+			swap(im->sources, pmc->sources);
 			for (psf = im->sources; psf; psf = psf->sf_next)
 				psf->sf_crcount = im->crcount;
 		}



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 185/293] ipv4: dont set IPv6 only flags to IPv4 addresses
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (183 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 184/293] igmp: fix memory leak in igmpv3_del_delrec() Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 186/293] net: bcmgenet: use promisc for unsupported filters Greg Kroah-Hartman
                   ` (113 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Matteo Croce, David Ahern, David S. Miller

From: Matteo Croce <mcroce@redhat.com>

[ Upstream commit 2e60546368165c2449564d71f6005dda9205b5fb ]

Avoid the situation where an IPV6 only flag is applied to an IPv4 address:

    # ip addr add 192.0.2.1/24 dev dummy0 nodad home mngtmpaddr noprefixroute
    # ip -4 addr show dev dummy0
    2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
        inet 192.0.2.1/24 scope global noprefixroute dummy0
           valid_lft forever preferred_lft forever

Or worse, by sending a malicious netlink command:

    # ip -4 addr show dev dummy0
    2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
        inet 192.0.2.1/24 scope global nodad optimistic dadfailed home tentative mngtmpaddr noprefixroute stable-privacy dummy0
           valid_lft forever preferred_lft forever

Signed-off-by: Matteo Croce <mcroce@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/devinet.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -66,6 +66,11 @@
 #include <net/net_namespace.h>
 #include <net/addrconf.h>
 
+#define IPV6ONLY_FLAGS	\
+		(IFA_F_NODAD | IFA_F_OPTIMISTIC | IFA_F_DADFAILED | \
+		 IFA_F_HOMEADDRESS | IFA_F_TENTATIVE | \
+		 IFA_F_MANAGETEMPADDR | IFA_F_STABLE_PRIVACY)
+
 static struct ipv4_devconf ipv4_devconf = {
 	.data = {
 		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
@@ -455,6 +460,9 @@ static int __inet_insert_ifa(struct in_i
 	ifa->ifa_flags &= ~IFA_F_SECONDARY;
 	last_primary = &in_dev->ifa_list;
 
+	/* Don't set IPv6 only flags to IPv4 addresses */
+	ifa->ifa_flags &= ~IPV6ONLY_FLAGS;
+
 	for (ifap = &in_dev->ifa_list; (ifa1 = *ifap) != NULL;
 	     ifap = &ifa1->ifa_next) {
 		if (!(ifa1->ifa_flags & IFA_F_SECONDARY) &&



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 186/293] net: bcmgenet: use promisc for unsupported filters
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (184 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 185/293] ipv4: dont set IPv6 only flags to IPv4 addresses Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 187/293] net: dsa: mv88e6xxx: wait after reset deactivation Greg Kroah-Hartman
                   ` (112 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Justin Chen, Florian Fainelli,
	David S. Miller

From: Justin Chen <justinpopo6@gmail.com>

[ Upstream commit 35cbef9863640f06107144687bd13151bc2e8ce3 ]

Currently we silently ignore filters if we cannot meet the filter
requirements. This will lead to the MAC dropping packets that are
expected to pass. A better solution would be to set the NIC to promisc
mode when the required filters cannot be met.

Also correct the number of MDF filters supported. It should be 17,
not 16.

Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c |   57 +++++++++++--------------
 1 file changed, 26 insertions(+), 31 deletions(-)

--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3088,39 +3088,42 @@ static void bcmgenet_timeout(struct net_
 	netif_tx_wake_all_queues(dev);
 }
 
-#define MAX_MC_COUNT	16
+#define MAX_MDF_FILTER	17
 
 static inline void bcmgenet_set_mdf_addr(struct bcmgenet_priv *priv,
 					 unsigned char *addr,
-					 int *i,
-					 int *mc)
+					 int *i)
 {
-	u32 reg;
-
 	bcmgenet_umac_writel(priv, addr[0] << 8 | addr[1],
 			     UMAC_MDF_ADDR + (*i * 4));
 	bcmgenet_umac_writel(priv, addr[2] << 24 | addr[3] << 16 |
 			     addr[4] << 8 | addr[5],
 			     UMAC_MDF_ADDR + ((*i + 1) * 4));
-	reg = bcmgenet_umac_readl(priv, UMAC_MDF_CTRL);
-	reg |= (1 << (MAX_MC_COUNT - *mc));
-	bcmgenet_umac_writel(priv, reg, UMAC_MDF_CTRL);
 	*i += 2;
-	(*mc)++;
 }
 
 static void bcmgenet_set_rx_mode(struct net_device *dev)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	struct netdev_hw_addr *ha;
-	int i, mc;
+	int i, nfilter;
 	u32 reg;
 
 	netif_dbg(priv, hw, dev, "%s: %08X\n", __func__, dev->flags);
 
-	/* Promiscuous mode */
+	/* Number of filters needed */
+	nfilter = netdev_uc_count(dev) + netdev_mc_count(dev) + 2;
+
+	/*
+	 * Turn on promicuous mode for three scenarios
+	 * 1. IFF_PROMISC flag is set
+	 * 2. IFF_ALLMULTI flag is set
+	 * 3. The number of filters needed exceeds the number filters
+	 *    supported by the hardware.
+	*/
 	reg = bcmgenet_umac_readl(priv, UMAC_CMD);
-	if (dev->flags & IFF_PROMISC) {
+	if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) ||
+	    (nfilter > MAX_MDF_FILTER)) {
 		reg |= CMD_PROMISC;
 		bcmgenet_umac_writel(priv, reg, UMAC_CMD);
 		bcmgenet_umac_writel(priv, 0, UMAC_MDF_CTRL);
@@ -3130,32 +3133,24 @@ static void bcmgenet_set_rx_mode(struct
 		bcmgenet_umac_writel(priv, reg, UMAC_CMD);
 	}
 
-	/* UniMac doesn't support ALLMULTI */
-	if (dev->flags & IFF_ALLMULTI) {
-		netdev_warn(dev, "ALLMULTI is not supported\n");
-		return;
-	}
-
 	/* update MDF filter */
 	i = 0;
-	mc = 0;
 	/* Broadcast */
-	bcmgenet_set_mdf_addr(priv, dev->broadcast, &i, &mc);
+	bcmgenet_set_mdf_addr(priv, dev->broadcast, &i);
 	/* my own address.*/
-	bcmgenet_set_mdf_addr(priv, dev->dev_addr, &i, &mc);
-	/* Unicast list*/
-	if (netdev_uc_count(dev) > (MAX_MC_COUNT - mc))
-		return;
+	bcmgenet_set_mdf_addr(priv, dev->dev_addr, &i);
 
-	if (!netdev_uc_empty(dev))
-		netdev_for_each_uc_addr(ha, dev)
-			bcmgenet_set_mdf_addr(priv, ha->addr, &i, &mc);
-	/* Multicast */
-	if (netdev_mc_empty(dev) || netdev_mc_count(dev) >= (MAX_MC_COUNT - mc))
-		return;
+	/* Unicast */
+	netdev_for_each_uc_addr(ha, dev)
+		bcmgenet_set_mdf_addr(priv, ha->addr, &i);
 
+	/* Multicast */
 	netdev_for_each_mc_addr(ha, dev)
-		bcmgenet_set_mdf_addr(priv, ha->addr, &i, &mc);
+		bcmgenet_set_mdf_addr(priv, ha->addr, &i);
+
+	/* Enable filters */
+	reg = GENMASK(MAX_MDF_FILTER - 1, MAX_MDF_FILTER - nfilter);
+	bcmgenet_umac_writel(priv, reg, UMAC_MDF_CTRL);
 }
 
 /* Set the hardware MAC address. */



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 187/293] net: dsa: mv88e6xxx: wait after reset deactivation
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (185 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 186/293] net: bcmgenet: use promisc for unsupported filters Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 188/293] net: neigh: fix multiple neigh timer scheduling Greg Kroah-Hartman
                   ` (111 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Baruch Siach, Andrew Lunn, David S. Miller

From: Baruch Siach <baruch@tkos.co.il>

[ Upstream commit 7b75e49de424ceb53d13e60f35d0a73765626fda ]

Add a 1ms delay after reset deactivation. Otherwise the chip returns
bogus ID value. This is observed with 88E6390 (Peridot) chip.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4044,6 +4044,8 @@ static int mv88e6xxx_probe(struct mdio_d
 				goto out_g1_irq;
 		}
 	}
+	if (chip->reset)
+		usleep_range(1000, 2000);
 
 	err = mv88e6xxx_mdios_register(chip, np);
 	if (err)



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 188/293] net: neigh: fix multiple neigh timer scheduling
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (186 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 187/293] net: dsa: mv88e6xxx: wait after reset deactivation Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 189/293] net: openvswitch: fix csum updates for MPLS actions Greg Kroah-Hartman
                   ` (110 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Marek Majkowski, Lorenzo Bianconi,
	David Ahern, David S. Miller

From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>

[ Upstream commit 071c37983d99da07797294ea78e9da1a6e287144 ]

Neigh timer can be scheduled multiple times from userspace adding
multiple neigh entries and forcing the neigh timer scheduling passing
NTF_USE in the netlink requests.
This will result in a refcount leak and in the following dump stack:

[   32.465295] NEIGH: BUG, double timer add, state is 8
[   32.465308] CPU: 0 PID: 416 Comm: double_timer_ad Not tainted 5.2.0+ #65
[   32.465311] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.12.0-2.fc30 04/01/2014
[   32.465313] Call Trace:
[   32.465318]  dump_stack+0x7c/0xc0
[   32.465323]  __neigh_event_send+0x20c/0x880
[   32.465326]  ? ___neigh_create+0x846/0xfb0
[   32.465329]  ? neigh_lookup+0x2a9/0x410
[   32.465332]  ? neightbl_fill_info.constprop.0+0x800/0x800
[   32.465334]  neigh_add+0x4f8/0x5e0
[   32.465337]  ? neigh_xmit+0x620/0x620
[   32.465341]  ? find_held_lock+0x85/0xa0
[   32.465345]  rtnetlink_rcv_msg+0x204/0x570
[   32.465348]  ? rtnl_dellink+0x450/0x450
[   32.465351]  ? mark_held_locks+0x90/0x90
[   32.465354]  ? match_held_lock+0x1b/0x230
[   32.465357]  netlink_rcv_skb+0xc4/0x1d0
[   32.465360]  ? rtnl_dellink+0x450/0x450
[   32.465363]  ? netlink_ack+0x420/0x420
[   32.465366]  ? netlink_deliver_tap+0x115/0x560
[   32.465369]  ? __alloc_skb+0xc9/0x2f0
[   32.465372]  netlink_unicast+0x270/0x330
[   32.465375]  ? netlink_attachskb+0x2f0/0x2f0
[   32.465378]  netlink_sendmsg+0x34f/0x5a0
[   32.465381]  ? netlink_unicast+0x330/0x330
[   32.465385]  ? move_addr_to_kernel.part.0+0x20/0x20
[   32.465388]  ? netlink_unicast+0x330/0x330
[   32.465391]  sock_sendmsg+0x91/0xa0
[   32.465394]  ___sys_sendmsg+0x407/0x480
[   32.465397]  ? copy_msghdr_from_user+0x200/0x200
[   32.465401]  ? _raw_spin_unlock_irqrestore+0x37/0x40
[   32.465404]  ? lockdep_hardirqs_on+0x17d/0x250
[   32.465407]  ? __wake_up_common_lock+0xcb/0x110
[   32.465410]  ? __wake_up_common+0x230/0x230
[   32.465413]  ? netlink_bind+0x3e1/0x490
[   32.465416]  ? netlink_setsockopt+0x540/0x540
[   32.465420]  ? __fget_light+0x9c/0xf0
[   32.465423]  ? sockfd_lookup_light+0x8c/0xb0
[   32.465426]  __sys_sendmsg+0xa5/0x110
[   32.465429]  ? __ia32_sys_shutdown+0x30/0x30
[   32.465432]  ? __fd_install+0xe1/0x2c0
[   32.465435]  ? lockdep_hardirqs_off+0xb5/0x100
[   32.465438]  ? mark_held_locks+0x24/0x90
[   32.465441]  ? do_syscall_64+0xf/0x270
[   32.465444]  do_syscall_64+0x63/0x270
[   32.465448]  entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fix the issue unscheduling neigh_timer if selected entry is in 'IN_TIMER'
receiving a netlink request with NTF_USE flag set

Reported-by: Marek Majkowski <marek@cloudflare.com>
Fixes: 0c5c2d308906 ("neigh: Allow for user space users of the neighbour table")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/neighbour.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1018,6 +1018,7 @@ int __neigh_event_send(struct neighbour
 
 			atomic_set(&neigh->probes,
 				   NEIGH_VAR(neigh->parms, UCAST_PROBES));
+			neigh_del_timer(neigh);
 			neigh->nud_state     = NUD_INCOMPLETE;
 			neigh->updated = now;
 			next = now + max(NEIGH_VAR(neigh->parms, RETRANS_TIME),
@@ -1034,6 +1035,7 @@ int __neigh_event_send(struct neighbour
 		}
 	} else if (neigh->nud_state & NUD_STALE) {
 		neigh_dbg(2, "neigh %p is delayed\n", neigh);
+		neigh_del_timer(neigh);
 		neigh->nud_state = NUD_DELAY;
 		neigh->updated = jiffies;
 		neigh_add_timer(neigh, jiffies +



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 189/293] net: openvswitch: fix csum updates for MPLS actions
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (187 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 188/293] net: neigh: fix multiple neigh timer scheduling Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 190/293] nfc: fix potential illegal memory access Greg Kroah-Hartman
                   ` (109 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, John Hurley, Jakub Kicinski,
	Simon Horman, Pravin B Shelar, David S. Miller

From: John Hurley <john.hurley@netronome.com>

[ Upstream commit 0e3183cd2a64843a95b62f8bd4a83605a4cf0615 ]

Skbs may have their checksum value populated by HW. If this is a checksum
calculated over the entire packet then the CHECKSUM_COMPLETE field is
marked. Changes to the data pointer on the skb throughout the network
stack still try to maintain this complete csum value if it is required
through functions such as skb_postpush_rcsum.

The MPLS actions in Open vSwitch modify a CHECKSUM_COMPLETE value when
changes are made to packet data without a push or a pull. This occurs when
the ethertype of the MAC header is changed or when MPLS lse fields are
modified.

The modification is carried out using the csum_partial function to get the
csum of a buffer and add it into the larger checksum. The buffer is an
inversion of the data to be removed followed by the new data. Because the
csum is calculated over 16 bits and these values align with 16 bits, the
effect is the removal of the old value from the CHECKSUM_COMPLETE and
addition of the new value.

However, the csum fed into the function and the outcome of the
calculation are also inverted. This would only make sense if it was the
new value rather than the old that was inverted in the input buffer.

Fix the issue by removing the bit inverts in the csum_partial calculation.

The bug was verified and the fix tested by comparing the folded value of
the updated CHECKSUM_COMPLETE value with the folded value of a full
software checksum calculation (reset skb->csum to 0 and run
skb_checksum_complete(skb)). Prior to the fix the outcomes differed but
after they produce the same result.

Fixes: 25cd9ba0abc0 ("openvswitch: Add basic MPLS support to kernel")
Fixes: bc7cc5999fd3 ("openvswitch: update checksum in {push,pop}_mpls")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/openvswitch/actions.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -174,8 +174,7 @@ static void update_ethertype(struct sk_b
 	if (skb->ip_summed == CHECKSUM_COMPLETE) {
 		__be16 diff[] = { ~(hdr->h_proto), ethertype };
 
-		skb->csum = ~csum_partial((char *)diff, sizeof(diff),
-					~skb->csum);
+		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
 	}
 
 	hdr->h_proto = ethertype;
@@ -267,8 +266,7 @@ static int set_mpls(struct sk_buff *skb,
 	if (skb->ip_summed == CHECKSUM_COMPLETE) {
 		__be32 diff[] = { ~(stack->label_stack_entry), lse };
 
-		skb->csum = ~csum_partial((char *)diff, sizeof(diff),
-					  ~skb->csum);
+		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
 	}
 
 	stack->label_stack_entry = lse;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 190/293] nfc: fix potential illegal memory access
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (188 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 189/293] net: openvswitch: fix csum updates for MPLS actions Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 191/293] rxrpc: Fix send on a connected, but unbound socket Greg Kroah-Hartman
                   ` (108 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Yang Wei, David S. Miller

From: Yang Wei <albin_yang@163.com>

[ Upstream commit dd006fc434e107ef90f7de0db9907cbc1c521645 ]

The frags_q is not properly initialized, it may result in illegal memory
access when conn_info is NULL.
The "goto free_exit" should be replaced by "goto exit".

Signed-off-by: Yang Wei <albin_yang@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/nci/data.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -119,7 +119,7 @@ static int nci_queue_tx_data_frags(struc
 	conn_info = nci_get_conn_info_by_conn_id(ndev, conn_id);
 	if (!conn_info) {
 		rc = -EPROTO;
-		goto free_exit;
+		goto exit;
 	}
 
 	__skb_queue_head_init(&frags_q);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 191/293] rxrpc: Fix send on a connected, but unbound socket
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (189 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 190/293] nfc: fix potential illegal memory access Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 192/293] sky2: Disable MSI on ASUS P6T Greg Kroah-Hartman
                   ` (107 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+7966f2a0b2c7da8939b4,
	David Howells, Marc Dionne, David S. Miller

From: David Howells <dhowells@redhat.com>

[ Upstream commit e835ada07091f40dcfb1bc735082bd0a7c005e59 ]

If sendmsg() or sendmmsg() is called on a connected socket that hasn't had
bind() called on it, then an oops will occur when the kernel tries to
connect the call because no local endpoint has been allocated.

Fix this by implicitly binding the socket if it is in the
RXRPC_CLIENT_UNBOUND state, just like it does for the RXRPC_UNBOUND state.

Further, the state should be transitioned to RXRPC_CLIENT_BOUND after this
to prevent further attempts to bind it.

This can be tested with:

	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <sys/socket.h>
	#include <arpa/inet.h>
	#include <linux/rxrpc.h>
	static const unsigned char inet6_addr[16] = {
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, 0xac, 0x14, 0x14, 0xaa
	};
	int main(void)
	{
		struct sockaddr_rxrpc srx;
		struct cmsghdr *cm;
		struct msghdr msg;
		unsigned char control[16];
		int fd;
		memset(&srx, 0, sizeof(srx));
		srx.srx_family = 0x21;
		srx.srx_service = 0;
		srx.transport_type = AF_INET;
		srx.transport_len = 0x1c;
		srx.transport.sin6.sin6_family = AF_INET6;
		srx.transport.sin6.sin6_port = htons(0x4e22);
		srx.transport.sin6.sin6_flowinfo = htons(0x4e22);
		srx.transport.sin6.sin6_scope_id = htons(0xaa3b);
		memcpy(&srx.transport.sin6.sin6_addr, inet6_addr, 16);
		cm = (struct cmsghdr *)control;
		cm->cmsg_len	= CMSG_LEN(sizeof(unsigned long));
		cm->cmsg_level	= SOL_RXRPC;
		cm->cmsg_type	= RXRPC_USER_CALL_ID;
		*(unsigned long *)CMSG_DATA(cm) = 0;
		msg.msg_name = NULL;
		msg.msg_namelen = 0;
		msg.msg_iov = NULL;
		msg.msg_iovlen = 0;
		msg.msg_control = control;
		msg.msg_controllen = cm->cmsg_len;
		msg.msg_flags = 0;
		fd = socket(AF_RXRPC, SOCK_DGRAM, AF_INET);
		connect(fd, (struct sockaddr *)&srx, sizeof(srx));
		sendmsg(fd, &msg, 0);
		return 0;
	}

Leading to the following oops:

	BUG: kernel NULL pointer dereference, address: 0000000000000018
	#PF: supervisor read access in kernel mode
	#PF: error_code(0x0000) - not-present page
	...
	RIP: 0010:rxrpc_connect_call+0x42/0xa01
	...
	Call Trace:
	 ? mark_held_locks+0x47/0x59
	 ? __local_bh_enable_ip+0xb6/0xba
	 rxrpc_new_client_call+0x3b1/0x762
	 ? rxrpc_do_sendmsg+0x3c0/0x92e
	 rxrpc_do_sendmsg+0x3c0/0x92e
	 rxrpc_sendmsg+0x16b/0x1b5
	 sock_sendmsg+0x2d/0x39
	 ___sys_sendmsg+0x1a4/0x22a
	 ? release_sock+0x19/0x9e
	 ? reacquire_held_locks+0x136/0x160
	 ? release_sock+0x19/0x9e
	 ? find_held_lock+0x2b/0x6e
	 ? __lock_acquire+0x268/0xf73
	 ? rxrpc_connect+0xdd/0xe4
	 ? __local_bh_enable_ip+0xb6/0xba
	 __sys_sendmsg+0x5e/0x94
	 do_syscall_64+0x7d/0x1bf
	 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fixes: 2341e0775747 ("rxrpc: Simplify connect() implementation and simplify sendmsg() op")
Reported-by: syzbot+7966f2a0b2c7da8939b4@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/rxrpc/af_rxrpc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -504,6 +504,7 @@ static int rxrpc_sendmsg(struct socket *
 
 	switch (rx->sk.sk_state) {
 	case RXRPC_UNBOUND:
+	case RXRPC_CLIENT_UNBOUND:
 		rx->srx.srx_family = AF_RXRPC;
 		rx->srx.srx_service = 0;
 		rx->srx.transport_type = SOCK_DGRAM;
@@ -528,10 +529,9 @@ static int rxrpc_sendmsg(struct socket *
 		}
 
 		rx->local = local;
-		rx->sk.sk_state = RXRPC_CLIENT_UNBOUND;
+		rx->sk.sk_state = RXRPC_CLIENT_BOUND;
 		/* Fall through */
 
-	case RXRPC_CLIENT_UNBOUND:
 	case RXRPC_CLIENT_BOUND:
 		if (!m->msg_name &&
 		    test_bit(RXRPC_SOCK_CONNECTED, &rx->flags)) {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 192/293] sky2: Disable MSI on ASUS P6T
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (190 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 191/293] rxrpc: Fix send on a connected, but unbound socket Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 193/293] vrf: make sure skb->data contains ip header to make routing Greg Kroah-Hartman
                   ` (106 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Takashi Iwai, David S. Miller,
	Marcus Seyfarth

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit a261e3797506bd561700be643fe1a85bf81e9661 ]

The onboard sky2 NIC on ASUS P6T WS PRO doesn't work after PM resume
due to the infamous IRQ problem.  Disabling MSI works around it, so
let's add it to the blacklist.

Unfortunately the BIOS on the machine doesn't fill the standard
DMI_SYS_* entry, so we pick up DMI_BOARD_* entries instead.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1142496
Reported-and-tested-by: Marcus Seyfarth <m.seyfarth@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/marvell/sky2.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4947,6 +4947,13 @@ static const struct dmi_system_id msi_bl
 			DMI_MATCH(DMI_PRODUCT_NAME, "P-79"),
 		},
 	},
+	{
+		.ident = "ASUS P6T",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P6T"),
+		},
+	},
 	{}
 };
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 193/293] vrf: make sure skb->data contains ip header to make routing
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (191 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 192/293] sky2: Disable MSI on ASUS P6T Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 194/293] macsec: fix use-after-free of skb during RX Greg Kroah-Hartman
                   ` (105 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Peter Kosyh, David Ahern, David S. Miller

From: Peter Kosyh <p.kosyh@gmail.com>

[ Upstream commit 107e47cc80ec37cb332bd41b22b1c7779e22e018 ]

vrf_process_v4_outbound() and vrf_process_v6_outbound() do routing
using ip/ipv6 addresses, but don't make sure the header is available
in skb->data[] (skb_headlen() is less then header size).

Case:

1) igb driver from intel.
2) Packet size is greater then 255.
3) MPLS forwards to VRF device.

So, patch adds pskb_may_pull() calls in vrf_process_v4/v6_outbound()
functions.

Signed-off-by: Peter Kosyh <p.kosyh@gmail.com>
Reviewed-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/vrf.c |   58 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 35 insertions(+), 23 deletions(-)

--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -167,23 +167,29 @@ static int vrf_ip6_local_out(struct net
 static netdev_tx_t vrf_process_v6_outbound(struct sk_buff *skb,
 					   struct net_device *dev)
 {
-	const struct ipv6hdr *iph = ipv6_hdr(skb);
+	const struct ipv6hdr *iph;
 	struct net *net = dev_net(skb->dev);
-	struct flowi6 fl6 = {
-		/* needed to match OIF rule */
-		.flowi6_oif = dev->ifindex,
-		.flowi6_iif = LOOPBACK_IFINDEX,
-		.daddr = iph->daddr,
-		.saddr = iph->saddr,
-		.flowlabel = ip6_flowinfo(iph),
-		.flowi6_mark = skb->mark,
-		.flowi6_proto = iph->nexthdr,
-		.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF,
-	};
+	struct flowi6 fl6;
 	int ret = NET_XMIT_DROP;
 	struct dst_entry *dst;
 	struct dst_entry *dst_null = &net->ipv6.ip6_null_entry->dst;
 
+	if (!pskb_may_pull(skb, ETH_HLEN + sizeof(struct ipv6hdr)))
+		goto err;
+
+	iph = ipv6_hdr(skb);
+
+	memset(&fl6, 0, sizeof(fl6));
+	/* needed to match OIF rule */
+	fl6.flowi6_oif = dev->ifindex;
+	fl6.flowi6_iif = LOOPBACK_IFINDEX;
+	fl6.daddr = iph->daddr;
+	fl6.saddr = iph->saddr;
+	fl6.flowlabel = ip6_flowinfo(iph);
+	fl6.flowi6_mark = skb->mark;
+	fl6.flowi6_proto = iph->nexthdr;
+	fl6.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF;
+
 	dst = ip6_route_output(net, NULL, &fl6);
 	if (dst == dst_null)
 		goto err;
@@ -239,21 +245,27 @@ static int vrf_ip_local_out(struct net *
 static netdev_tx_t vrf_process_v4_outbound(struct sk_buff *skb,
 					   struct net_device *vrf_dev)
 {
-	struct iphdr *ip4h = ip_hdr(skb);
+	struct iphdr *ip4h;
 	int ret = NET_XMIT_DROP;
-	struct flowi4 fl4 = {
-		/* needed to match OIF rule */
-		.flowi4_oif = vrf_dev->ifindex,
-		.flowi4_iif = LOOPBACK_IFINDEX,
-		.flowi4_tos = RT_TOS(ip4h->tos),
-		.flowi4_flags = FLOWI_FLAG_ANYSRC | FLOWI_FLAG_SKIP_NH_OIF,
-		.flowi4_proto = ip4h->protocol,
-		.daddr = ip4h->daddr,
-		.saddr = ip4h->saddr,
-	};
+	struct flowi4 fl4;
 	struct net *net = dev_net(vrf_dev);
 	struct rtable *rt;
 
+	if (!pskb_may_pull(skb, ETH_HLEN + sizeof(struct iphdr)))
+		goto err;
+
+	ip4h = ip_hdr(skb);
+
+	memset(&fl4, 0, sizeof(fl4));
+	/* needed to match OIF rule */
+	fl4.flowi4_oif = vrf_dev->ifindex;
+	fl4.flowi4_iif = LOOPBACK_IFINDEX;
+	fl4.flowi4_tos = RT_TOS(ip4h->tos);
+	fl4.flowi4_flags = FLOWI_FLAG_ANYSRC | FLOWI_FLAG_SKIP_NH_OIF;
+	fl4.flowi4_proto = ip4h->protocol;
+	fl4.daddr = ip4h->daddr;
+	fl4.saddr = ip4h->saddr;
+
 	rt = ip_route_output_flow(net, &fl4, NULL);
 	if (IS_ERR(rt))
 		goto err;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 194/293] macsec: fix use-after-free of skb during RX
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (192 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 193/293] vrf: make sure skb->data contains ip header to make routing Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 195/293] macsec: fix checksumming after decryption Greg Kroah-Hartman
                   ` (104 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andreas Steinmetz, Willem de Bruijn,
	David S. Miller

From: Andreas Steinmetz <ast@domdv.de>

[ Upstream commit 095c02da80a41cf6d311c504d8955d6d1c2add10 ]

Fix use-after-free of skb when rx_handler returns RX_HANDLER_PASS.

Signed-off-by: Andreas Steinmetz <ast@domdv.de>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/macsec.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -1099,10 +1099,9 @@ static rx_handler_result_t macsec_handle
 	}
 
 	skb = skb_unshare(skb, GFP_ATOMIC);
-	if (!skb) {
-		*pskb = NULL;
+	*pskb = skb;
+	if (!skb)
 		return RX_HANDLER_CONSUMED;
-	}
 
 	pulled_sci = pskb_may_pull(skb, macsec_extra_len(true));
 	if (!pulled_sci) {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 195/293] macsec: fix checksumming after decryption
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (193 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 194/293] macsec: fix use-after-free of skb during RX Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 196/293] netrom: fix a memory leak in nr_rx_frame() Greg Kroah-Hartman
                   ` (103 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Andreas Steinmetz, David S. Miller

From: Andreas Steinmetz <ast@domdv.de>

[ Upstream commit 7d8b16b9facb0dd81d1469808dd9a575fa1d525a ]

Fix checksumming after decryption.

Signed-off-by: Andreas Steinmetz <ast@domdv.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/macsec.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -865,6 +865,7 @@ static void macsec_reset_skb(struct sk_b
 
 static void macsec_finalize_skb(struct sk_buff *skb, u8 icv_len, u8 hdr_len)
 {
+	skb->ip_summed = CHECKSUM_NONE;
 	memmove(skb->data + hdr_len, skb->data, 2 * ETH_ALEN);
 	skb_pull(skb, hdr_len);
 	pskb_trim_unique(skb, skb->len - icv_len);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 196/293] netrom: fix a memory leak in nr_rx_frame()
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (194 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 195/293] macsec: fix checksumming after decryption Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 197/293] netrom: hold sock when setting skb->destructor Greg Kroah-Hartman
                   ` (102 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, syzbot+d6636a36d3c34bd88938,
	Cong Wang, David S. Miller

From: Cong Wang <xiyou.wangcong@gmail.com>

[ Upstream commit c8c8218ec5af5d2598381883acbefbf604e56b5e ]

When the skb is associated with a new sock, just assigning
it to skb->sk is not sufficient, we have to set its destructor
to free the sock properly too.

Reported-by: syzbot+d6636a36d3c34bd88938@syzkaller.appspotmail.com
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netrom/af_netrom.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -871,7 +871,7 @@ int nr_rx_frame(struct sk_buff *skb, str
 	unsigned short frametype, flags, window, timeout;
 	int ret;
 
-	skb->sk = NULL;		/* Initially we don't know who it's for */
+	skb_orphan(skb);
 
 	/*
 	 *	skb->data points to the netrom frame start
@@ -970,6 +970,7 @@ int nr_rx_frame(struct sk_buff *skb, str
 	window = skb->data[20];
 
 	skb->sk             = make;
+	skb->destructor     = sock_efree;
 	make->sk_state	    = TCP_ESTABLISHED;
 
 	/* Fill in his circuit details */



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 197/293] netrom: hold sock when setting skb->destructor
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (195 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 196/293] netrom: fix a memory leak in nr_rx_frame() Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 198/293] bonding: validate ip header before check IPPROTO_IGMP Greg Kroah-Hartman
                   ` (101 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Ralf Baechle, Cong Wang,
	David S. Miller, syzbot+622bdabb128acc33427d,
	syzbot+6eaef7158b19e3fec3a0, syzbot+9399c158fcc09b21d0d2,
	syzbot+a34e5f3d0300163f0c87

From: Cong Wang <xiyou.wangcong@gmail.com>

[ Upstream commit 4638faac032756f7eab5524be7be56bee77e426b ]

sock_efree() releases the sock refcnt, if we don't hold this refcnt
when setting skb->destructor to it, the refcnt would not be balanced.
This leads to several bug reports from syzbot.

I have checked other users of sock_efree(), all of them hold the
sock refcnt.

Fixes: c8c8218ec5af ("netrom: fix a memory leak in nr_rx_frame()")
Reported-and-tested-by: <syzbot+622bdabb128acc33427d@syzkaller.appspotmail.com>
Reported-and-tested-by: <syzbot+6eaef7158b19e3fec3a0@syzkaller.appspotmail.com>
Reported-and-tested-by: <syzbot+9399c158fcc09b21d0d2@syzkaller.appspotmail.com>
Reported-and-tested-by: <syzbot+a34e5f3d0300163f0c87@syzkaller.appspotmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netrom/af_netrom.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -969,6 +969,7 @@ int nr_rx_frame(struct sk_buff *skb, str
 
 	window = skb->data[20];
 
+	sock_hold(make);
 	skb->sk             = make;
 	skb->destructor     = sock_efree;
 	make->sk_state	    = TCP_ESTABLISHED;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 198/293] bonding: validate ip header before check IPPROTO_IGMP
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (196 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 197/293] netrom: hold sock when setting skb->destructor Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 199/293] net: make skb_dst_force return true when dst is refcounted Greg Kroah-Hartman
                   ` (100 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Jay Vosburgh, Veaceslav Falico,
	Andy Gospodarek, Cong Wang, David S. Miller,
	syzbot+e5be16aa39ad6e755391

From: Cong Wang <xiyou.wangcong@gmail.com>

[ Upstream commit 9d1bc24b52fb8c5d859f9a47084bf1179470e04c ]

bond_xmit_roundrobin() checks for IGMP packets but it parses
the IP header even before checking skb->protocol.

We should validate the IP header with pskb_may_pull() before
using iph->protocol.

Reported-and-tested-by: syzbot+e5be16aa39ad6e755391@syzkaller.appspotmail.com
Fixes: a2fd940f4cff ("bonding: fix broken multicast with round-robin mode")
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/bonding/bond_main.c |   37 +++++++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 14 deletions(-)

--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3817,8 +3817,8 @@ static u32 bond_rr_gen_slave_id(struct b
 static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct iphdr *iph = ip_hdr(skb);
 	struct slave *slave;
+	int slave_cnt;
 	u32 slave_id;
 
 	/* Start with the curr_active_slave that joined the bond as the
@@ -3827,23 +3827,32 @@ static int bond_xmit_roundrobin(struct s
 	 * send the join/membership reports.  The curr_active_slave found
 	 * will send all of this type of traffic.
 	 */
-	if (iph->protocol == IPPROTO_IGMP && skb->protocol == htons(ETH_P_IP)) {
-		slave = rcu_dereference(bond->curr_active_slave);
-		if (slave)
-			bond_dev_queue_xmit(bond, skb, slave->dev);
-		else
-			bond_xmit_slave_id(bond, skb, 0);
-	} else {
-		int slave_cnt = ACCESS_ONCE(bond->slave_cnt);
+	if (skb->protocol == htons(ETH_P_IP)) {
+		int noff = skb_network_offset(skb);
+		struct iphdr *iph;
+
+		if (unlikely(!pskb_may_pull(skb, noff + sizeof(*iph))))
+			goto non_igmp;
 
-		if (likely(slave_cnt)) {
-			slave_id = bond_rr_gen_slave_id(bond);
-			bond_xmit_slave_id(bond, skb, slave_id % slave_cnt);
-		} else {
-			bond_tx_drop(bond_dev, skb);
+		iph = ip_hdr(skb);
+		if (iph->protocol == IPPROTO_IGMP) {
+			slave = rcu_dereference(bond->curr_active_slave);
+			if (slave)
+				bond_dev_queue_xmit(bond, skb, slave->dev);
+			else
+				bond_xmit_slave_id(bond, skb, 0);
+			return NETDEV_TX_OK;
 		}
 	}
 
+non_igmp:
+	slave_cnt = ACCESS_ONCE(bond->slave_cnt);
+	if (likely(slave_cnt)) {
+		slave_id = bond_rr_gen_slave_id(bond);
+		bond_xmit_slave_id(bond, skb, slave_id % slave_cnt);
+	} else {
+		bond_tx_drop(bond_dev, skb);
+	}
 	return NETDEV_TX_OK;
 }
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 199/293] net: make skb_dst_force return true when dst is refcounted
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (197 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 198/293] bonding: validate ip header before check IPPROTO_IGMP Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 200/293] tcp: fix tcp_set_congestion_control() use from bpf hook Greg Kroah-Hartman
                   ` (99 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Florian Westphal, David S. Miller

From: Florian Westphal <fw@strlen.de>

[ Upstream commit b60a77386b1d4868f72f6353d35dabe5fbe981f2 ]

netfilter did not expect that skb_dst_force() can cause skb to lose its
dst entry.

I got a bug report with a skb->dst NULL dereference in netfilter
output path.  The backtrace contains nf_reinject(), so the dst might have
been cleared when skb got queued to userspace.

Other users were fixed via
if (skb_dst(skb)) {
	skb_dst_force(skb);
	if (!skb_dst(skb))
		goto handle_err;
}

But I think its preferable to make the 'dst might be cleared' part
of the function explicit.

In netfilter case, skb with a null dst is expected when queueing in
prerouting hook, so drop skb for the other hooks.

v2:
 v1 of this patch returned true in case skb had no dst entry.
 Eric said:
   Say if we have two skb_dst_force() calls for some reason
   on the same skb, only the first one will return false.

 This now returns false even when skb had no dst, as per Erics
 suggestion, so callers might need to check skb_dst() first before
 skb_dst_force().

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/dst.h        |    5 ++++-
 net/netfilter/nf_queue.c |    6 +++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -329,8 +329,9 @@ static inline bool dst_hold_safe(struct
  * @skb: buffer
  *
  * If dst is not yet refcounted and not destroyed, grab a ref on it.
+ * Returns true if dst is refcounted.
  */
-static inline void skb_dst_force(struct sk_buff *skb)
+static inline bool skb_dst_force(struct sk_buff *skb)
 {
 	if (skb_dst_is_noref(skb)) {
 		struct dst_entry *dst = skb_dst(skb);
@@ -341,6 +342,8 @@ static inline void skb_dst_force(struct
 
 		skb->_skb_refdst = (unsigned long)dst;
 	}
+
+	return skb->_skb_refdst != 0UL;
 }
 
 
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -138,6 +138,11 @@ static int __nf_queue(struct sk_buff *sk
 		goto err;
 	}
 
+	if (!skb_dst_force(skb) && state->hook != NF_INET_PRE_ROUTING) {
+		status = -ENETDOWN;
+		goto err;
+	}
+
 	*entry = (struct nf_queue_entry) {
 		.skb	= skb,
 		.state	= *state,
@@ -146,7 +151,6 @@ static int __nf_queue(struct sk_buff *sk
 	};
 
 	nf_queue_entry_get_refs(entry);
-	skb_dst_force(skb);
 	afinfo->saveroute(skb, entry);
 	status = qh->outfn(entry, queuenum);
 



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 200/293] tcp: fix tcp_set_congestion_control() use from bpf hook
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (198 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 199/293] net: make skb_dst_force return true when dst is refcounted Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 201/293] tcp: Reset bytes_acked and bytes_received when disconnecting Greg Kroah-Hartman
                   ` (98 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Lawrence Brakmo,
	Neal Cardwell, David S. Miller

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 8d650cdedaabb33e85e9b7c517c0c71fcecc1de9 ]

Neal reported incorrect use of ns_capable() from bpf hook.

bpf_setsockopt(...TCP_CONGESTION...)
  -> tcp_set_congestion_control()
   -> ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)
    -> ns_capable_common()
     -> current_cred()
      -> rcu_dereference_protected(current->cred, 1)

Accessing 'current' in bpf context makes no sense, since packets
are processed from softirq context.

As Neal stated : The capability check in tcp_set_congestion_control()
was written assuming a system call context, and then was reused from
a BPF call site.

The fix is to add a new parameter to tcp_set_congestion_control(),
so that the ns_capable() call is only performed under the right
context.

Fixes: 91b5b21c7c16 ("bpf: Add support for changing congestion control")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Lawrence Brakmo <brakmo@fb.com>
Reported-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/tcp.h   |    3 ++-
 net/core/filter.c   |    3 ++-
 net/ipv4/tcp.c      |    4 +++-
 net/ipv4/tcp_cong.c |    6 +++---
 4 files changed, 10 insertions(+), 6 deletions(-)

--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1043,7 +1043,8 @@ void tcp_get_default_congestion_control(
 void tcp_get_available_congestion_control(char *buf, size_t len);
 void tcp_get_allowed_congestion_control(char *buf, size_t len);
 int tcp_set_allowed_congestion_control(char *allowed);
-int tcp_set_congestion_control(struct sock *sk, const char *name, bool load, bool reinit);
+int tcp_set_congestion_control(struct sock *sk, const char *name, bool load,
+			       bool reinit, bool cap_net_admin);
 u32 tcp_slow_start(struct tcp_sock *tp, u32 acked);
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w, u32 acked);
 
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -3122,7 +3122,8 @@ BPF_CALL_5(bpf_setsockopt, struct bpf_so
 			strncpy(name, optval, min_t(long, optlen,
 						    TCP_CA_NAME_MAX-1));
 			name[TCP_CA_NAME_MAX-1] = 0;
-			ret = tcp_set_congestion_control(sk, name, false, reinit);
+			ret = tcp_set_congestion_control(sk, name, false,
+							 reinit, true);
 		} else {
 			struct tcp_sock *tp = tcp_sk(sk);
 
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2500,7 +2500,9 @@ static int do_tcp_setsockopt(struct sock
 		name[val] = 0;
 
 		lock_sock(sk);
-		err = tcp_set_congestion_control(sk, name, true, true);
+		err = tcp_set_congestion_control(sk, name, true, true,
+						 ns_capable(sock_net(sk)->user_ns,
+							    CAP_NET_ADMIN));
 		release_sock(sk);
 		return err;
 	}
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -338,7 +338,8 @@ out:
  * tcp_reinit_congestion_control (if the current congestion control was
  * already initialized.
  */
-int tcp_set_congestion_control(struct sock *sk, const char *name, bool load, bool reinit)
+int tcp_set_congestion_control(struct sock *sk, const char *name, bool load,
+			       bool reinit, bool cap_net_admin)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	const struct tcp_congestion_ops *ca;
@@ -372,8 +373,7 @@ int tcp_set_congestion_control(struct so
 		} else {
 			err = -EBUSY;
 		}
-	} else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) ||
-		     ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))) {
+	} else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) || cap_net_admin)) {
 		err = -EPERM;
 	} else if (!try_module_get(ca->owner)) {
 		err = -EBUSY;



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 201/293] tcp: Reset bytes_acked and bytes_received when disconnecting
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (199 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 200/293] tcp: fix tcp_set_congestion_control() use from bpf hook Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 202/293] net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling Greg Kroah-Hartman
                   ` (97 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Christoph Paasch,
	David S. Miller

From: Christoph Paasch <cpaasch@apple.com>

[ Upstream commit e858faf556d4e14c750ba1e8852783c6f9520a0e ]

If an app is playing tricks to reuse a socket via tcp_disconnect(),
bytes_acked/received needs to be reset to 0. Otherwise tcp_info will
report the sum of the current and the old connection..

Cc: Eric Dumazet <edumazet@google.com>
Fixes: 0df48c26d841 ("tcp: add tcpi_bytes_acked to tcp_info")
Fixes: bdd1f9edacb5 ("tcp: add tcpi_bytes_received to tcp_info")
Signed-off-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/tcp.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2366,6 +2366,8 @@ int tcp_disconnect(struct sock *sk, int
 	dst_release(sk->sk_rx_dst);
 	sk->sk_rx_dst = NULL;
 	tcp_saved_syn_free(tp);
+	tp->bytes_acked = 0;
+	tp->bytes_received = 0;
 
 	/* Clean up fastopen related fields */
 	tcp_free_fastopen_req(tp);



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 202/293] net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (200 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 201/293] tcp: Reset bytes_acked and bytes_received when disconnecting Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 203/293] net: bridge: mcast: fix stale ipv6 hdr pointer when handling v6 query Greg Kroah-Hartman
                   ` (96 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Martin Weinelt, Nikolay Aleksandrov,
	David S. Miller

From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

[ Upstream commit e57f61858b7cf478ed6fa23ed4b3876b1c9625c4 ]

We take a pointer to grec prior to calling pskb_may_pull and use it
afterwards to get nsrcs so record nsrcs before the pull when handling
igmp3 and we get a pointer to nsrcs and call pskb_may_pull when handling
mld2 which again could lead to reading 2 bytes out-of-bounds.

 ==================================================================
 BUG: KASAN: use-after-free in br_multicast_rcv+0x480c/0x4ad0 [bridge]
 Read of size 2 at addr ffff8880421302b4 by task ksoftirqd/1/16

 CPU: 1 PID: 16 Comm: ksoftirqd/1 Tainted: G           OE     5.2.0-rc6+ #1
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
 Call Trace:
  dump_stack+0x71/0xab
  print_address_description+0x6a/0x280
  ? br_multicast_rcv+0x480c/0x4ad0 [bridge]
  __kasan_report+0x152/0x1aa
  ? br_multicast_rcv+0x480c/0x4ad0 [bridge]
  ? br_multicast_rcv+0x480c/0x4ad0 [bridge]
  kasan_report+0xe/0x20
  br_multicast_rcv+0x480c/0x4ad0 [bridge]
  ? br_multicast_disable_port+0x150/0x150 [bridge]
  ? ktime_get_with_offset+0xb4/0x150
  ? __kasan_kmalloc.constprop.6+0xa6/0xf0
  ? __netif_receive_skb+0x1b0/0x1b0
  ? br_fdb_update+0x10e/0x6e0 [bridge]
  ? br_handle_frame_finish+0x3c6/0x11d0 [bridge]
  br_handle_frame_finish+0x3c6/0x11d0 [bridge]
  ? br_pass_frame_up+0x3a0/0x3a0 [bridge]
  ? virtnet_probe+0x1c80/0x1c80 [virtio_net]
  br_handle_frame+0x731/0xd90 [bridge]
  ? select_idle_sibling+0x25/0x7d0
  ? br_handle_frame_finish+0x11d0/0x11d0 [bridge]
  __netif_receive_skb_core+0xced/0x2d70
  ? virtqueue_get_buf_ctx+0x230/0x1130 [virtio_ring]
  ? do_xdp_generic+0x20/0x20
  ? virtqueue_napi_complete+0x39/0x70 [virtio_net]
  ? virtnet_poll+0x94d/0xc78 [virtio_net]
  ? receive_buf+0x5120/0x5120 [virtio_net]
  ? __netif_receive_skb_one_core+0x97/0x1d0
  __netif_receive_skb_one_core+0x97/0x1d0
  ? __netif_receive_skb_core+0x2d70/0x2d70
  ? _raw_write_trylock+0x100/0x100
  ? __queue_work+0x41e/0xbe0
  process_backlog+0x19c/0x650
  ? _raw_read_lock_irq+0x40/0x40
  net_rx_action+0x71e/0xbc0
  ? __switch_to_asm+0x40/0x70
  ? napi_complete_done+0x360/0x360
  ? __switch_to_asm+0x34/0x70
  ? __switch_to_asm+0x40/0x70
  ? __schedule+0x85e/0x14d0
  __do_softirq+0x1db/0x5f9
  ? takeover_tasklets+0x5f0/0x5f0
  run_ksoftirqd+0x26/0x40
  smpboot_thread_fn+0x443/0x680
  ? sort_range+0x20/0x20
  ? schedule+0x94/0x210
  ? __kthread_parkme+0x78/0xf0
  ? sort_range+0x20/0x20
  kthread+0x2ae/0x3a0
  ? kthread_create_worker_on_cpu+0xc0/0xc0
  ret_from_fork+0x35/0x40

 The buggy address belongs to the page:
 page:ffffea0001084c00 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0
 flags: 0xffffc000000000()
 raw: 00ffffc000000000 ffffea0000cfca08 ffffea0001098608 0000000000000000
 raw: 0000000000000000 0000000000000003 00000000ffffff7f 0000000000000000
 page dumped because: kasan: bad access detected

 Memory state around the buggy address:
 ffff888042130180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888042130200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 > ffff888042130280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                     ^
 ffff888042130300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888042130380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ==================================================================
 Disabling lock debugging due to kernel taint

Fixes: bc8c20acaea1 ("bridge: multicast: treat igmpv3 report with INCLUDE and no sources as a leave")
Reported-by: Martin Weinelt <martin@linuxlounge.net>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Tested-by: Martin Weinelt <martin@linuxlounge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bridge/br_multicast.c |   27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1120,6 +1120,7 @@ static int br_ip4_multicast_igmp3_report
 	int type;
 	int err = 0;
 	__be32 group;
+	u16 nsrcs;
 
 	ih = igmpv3_report_hdr(skb);
 	num = ntohs(ih->ngrec);
@@ -1133,8 +1134,9 @@ static int br_ip4_multicast_igmp3_report
 		grec = (void *)(skb->data + len - sizeof(*grec));
 		group = grec->grec_mca;
 		type = grec->grec_type;
+		nsrcs = ntohs(grec->grec_nsrcs);
 
-		len += ntohs(grec->grec_nsrcs) * 4;
+		len += nsrcs * 4;
 		if (!pskb_may_pull(skb, len))
 			return -EINVAL;
 
@@ -1155,7 +1157,7 @@ static int br_ip4_multicast_igmp3_report
 		src = eth_hdr(skb)->h_source;
 		if ((type == IGMPV3_CHANGE_TO_INCLUDE ||
 		     type == IGMPV3_MODE_IS_INCLUDE) &&
-		    ntohs(grec->grec_nsrcs) == 0) {
+		    nsrcs == 0) {
 			br_ip4_multicast_leave_group(br, port, group, vid, src);
 		} else {
 			err = br_ip4_multicast_add_group(br, port, group, vid,
@@ -1190,23 +1192,26 @@ static int br_ip6_multicast_mld2_report(
 	len = skb_transport_offset(skb) + sizeof(*icmp6h);
 
 	for (i = 0; i < num; i++) {
-		__be16 *nsrcs, _nsrcs;
+		__be16 *_nsrcs, __nsrcs;
+		u16 nsrcs;
 
-		nsrcs = skb_header_pointer(skb,
-					   len + offsetof(struct mld2_grec,
-							  grec_nsrcs),
-					   sizeof(_nsrcs), &_nsrcs);
-		if (!nsrcs)
+		_nsrcs = skb_header_pointer(skb,
+					    len + offsetof(struct mld2_grec,
+							   grec_nsrcs),
+					    sizeof(__nsrcs), &__nsrcs);
+		if (!_nsrcs)
 			return -EINVAL;
 
+		nsrcs = ntohs(*_nsrcs);
+
 		if (!pskb_may_pull(skb,
 				   len + sizeof(*grec) +
-				   sizeof(struct in6_addr) * ntohs(*nsrcs)))
+				   sizeof(struct in6_addr) * nsrcs))
 			return -EINVAL;
 
 		grec = (struct mld2_grec *)(skb->data + len);
 		len += sizeof(*grec) +
-		       sizeof(struct in6_addr) * ntohs(*nsrcs);
+		       sizeof(struct in6_addr) * nsrcs;
 
 		/* We treat these as MLDv1 reports for now. */
 		switch (grec->grec_type) {
@@ -1225,7 +1230,7 @@ static int br_ip6_multicast_mld2_report(
 		src = eth_hdr(skb)->h_source;
 		if ((grec->grec_type == MLD2_CHANGE_TO_INCLUDE ||
 		     grec->grec_type == MLD2_MODE_IS_INCLUDE) &&
-		    ntohs(*nsrcs) == 0) {
+		    nsrcs == 0) {
 			br_ip6_multicast_leave_group(br, port, &grec->grec_mca,
 						     vid, src);
 		} else {



^ permalink raw reply	[flat|nested] 302+ messages in thread

* [PATCH 4.14 203/293] net: bridge: mcast: fix stale ipv6 hdr pointer when handling v6 query
  2019-07-29 19:18 [PATCH 4.14 000/293] 4.14.135-stable review Greg Kroah-Hartman
                   ` (201 preceding siblings ...)
  2019-07-29 19:21 ` [PATCH 4.14 202/293] net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling Greg Kroah-Hartman
@ 2019-07-29 19:21 ` Greg Kroah-Hartman
  2019-07-29 19:21 ` [PATCH 4.14 204/293] net: bridge: stp: dont cache eth dest pointer before skb pull Greg Kroah-Hartman
                   ` (95 subsequent siblings)
  298 siblings, 0 replies; 302+ messages in thread
From: Greg Kroah-Hartman @ 2019-07-29 19:21 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Nikolay Aleksandrov, Martin Weinelt,
	David S. Miller

From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

[ Upstream commit 3b26a5d03d35d8f732d75951218983c0f7f68dff ]

We get a pointer to the ipv6 hdr in br_ip6_multicast_query but we may
call pskb_may_pull afterwards and end up using a stale pointer.
So use the header directly, it's just 1 place where it's needed.

Fixes: 08b202b67264 ("bridge br_multicast: IPv6 MLD su