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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
	David Woodhouse <dwmw@amazon.co.uk>, Amit Shah <aams@amazon.com>,
	Laura Abbott <labbott@redhat.com>,
	Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Will Deacon <will.deacon@arm.com>,
	Tyler Hicks <tyhicks@canonical.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 4.19 018/110] Documentation/security-bugs: Postpone fix publication in exceptional cases
Date: Thu, 29 Nov 2018 15:11:49 +0100	[thread overview]
Message-ID: <20181129135921.984767872@linuxfoundation.org> (raw)
In-Reply-To: <20181129135921.231283053@linuxfoundation.org>

4.19-stable review patch.  If anyone has any objections, please let me know.

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

From: Will Deacon <will.deacon@arm.com>

commit 544b03da39e2d7b4961d3163976ed4bfb1fac509 upstream.

At the request of the reporter, the Linux kernel security team offers to
postpone the publishing of a fix for up to 5 business days from the date
of a report.

While it is generally undesirable to keep a fix private after it has
been developed, this short window is intended to allow distributions to
package the fix into their kernel builds and permits early inclusion of
the security team in the case of a co-ordinated disclosure with other
parties. Unfortunately, discussions with major Linux distributions and
cloud providers has revealed that 5 business days is not sufficient to
achieve either of these two goals.

As an example, cloud providers need to roll out KVM security fixes to a
global fleet of hosts with sufficient early ramp-up and monitoring. An
end-to-end timeline of less than two weeks dramatically cuts into the
amount of early validation and increases the chance of guest-visible
regressions.

The consequence of this timeline mismatch is that security issues are
commonly fixed without the involvement of the Linux kernel security team
and are instead analysed and addressed by an ad-hoc group of developers
across companies contributing to Linux. In some cases, mainline (and
therefore the official stable kernels) can be left to languish for
extended periods of time. This undermines the Linux kernel security
process and puts upstream developers in a difficult position should they
find themselves involved with an undisclosed security problem that they
are unable to report due to restrictions from their employer.

To accommodate the needs of these users of the Linux kernel and
encourage them to engage with the Linux security team when security
issues are first uncovered, extend the maximum period for which fixes
may be delayed to 7 calendar days, or 14 calendar days in exceptional
cases, where the logistics of QA and large scale rollouts specifically
need to be accommodated. This brings parity with the linux-distros@
maximum embargo period of 14 calendar days.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Amit Shah <aams@amazon.com>
Cc: Laura Abbott <labbott@redhat.com>
Acked-by: Kees Cook <keescook@chromium.org>
Co-developed-by: Thomas Gleixner <tglx@linutronix.de>
Co-developed-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 Documentation/admin-guide/security-bugs.rst |   19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

--- a/Documentation/admin-guide/security-bugs.rst
+++ b/Documentation/admin-guide/security-bugs.rst
@@ -32,16 +32,17 @@ Disclosure and embargoed information
 The security list is not a disclosure channel.  For that, see Coordination
 below.
 
-Once a robust fix has been developed, our preference is to release the
-fix in a timely fashion, treating it no differently than any of the other
-thousands of changes and fixes the Linux kernel project releases every
-month.
+Once a robust fix has been developed, the release process starts.  Fixes
+for publicly known bugs are released immediately.
 
-However, at the request of the reporter, we will postpone releasing the
-fix for up to 5 business days after the date of the report or after the
-embargo has lifted; whichever comes first.  The only exception to that
-rule is if the bug is publicly known, in which case the preference is to
-release the fix as soon as it's available.
+Although our preference is to release fixes for publicly undisclosed bugs
+as soon as they become available, this may be postponed at the request of
+the reporter or an affected party for up to 7 calendar days from the start
+of the release process, with an exceptional extension to 14 calendar days
+if it is agreed that the criticality of the bug requires more time.  The
+only valid reason for deferring the publication of a fix is to accommodate
+the logistics of QA and large scale rollouts which require release
+coordination.
 
 Whilst embargoed information may be shared with trusted individuals in
 order to develop a fix, such information will not be published alongside

  parent reply	other threads:[~2018-11-29 14:11 UTC|newest]

Thread overview: 143+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-29 14:11 [PATCH 4.19 000/110] 4.19.6-stable review Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 001/110] HID: steam: remove input device when a hid client is running Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 002/110] efi/libstub: arm: support building with clang Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 003/110] usb: core: Fix hub port connection events lost Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 004/110] usb: dwc3: gadget: fix ISOC TRB type on unaligned transfers Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 005/110] usb: dwc3: gadget: Properly check last unaligned/zero chain TRB Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 006/110] usb: dwc3: core: Clean up ULPI device Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 007/110] usb: dwc3: Fix NULL pointer exception in dwc3_pci_remove() Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 008/110] xhci: Fix leaking USB3 shared_hcd at xhci removal Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 009/110] xhci: handle port status events for removed USB3 hcd Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 010/110] xhci: Add check for invalid byte size error when UAS devices are connected Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 011/110] usb: xhci: fix uninitialized completion when USB3 port got wrong status Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 012/110] usb: xhci: fix timeout for transition from RExit to U0 Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 013/110] xhci: Add quirk to workaround the errata seen on Cavium Thunder-X2 Soc Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 014/110] usb: xhci: Prevent bus suspend if a port connect change or polling state is detected Greg Kroah-Hartman
2018-12-11 10:51   ` Thomas Zeitlhofer
2018-12-12 22:53   ` Thomas Zeitlhofer
2018-12-13  7:36     ` Greg Kroah-Hartman
2018-12-13 12:24       ` Mathias Nyman
2018-12-13 20:53         ` Thomas Zeitlhofer
2018-11-29 14:11 ` [PATCH 4.19 015/110] ALSA: oss: Use kvzalloc() for local buffer allocations Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 016/110] MAINTAINERS: Add Sasha as a stable branch maintainer Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 017/110] Documentation/security-bugs: Clarify treatment of embargoed information Greg Kroah-Hartman
2018-11-29 14:11 ` Greg Kroah-Hartman [this message]
2018-11-29 14:11 ` [PATCH 4.19 019/110] mmc: sdhci-pci: Try "cd" for card-detect lookup before using NULL Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 020/110] mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 021/110] gpio: dont free unallocated ida on gpiochip_add_data_with_key() error path Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 022/110] iwlwifi: fix wrong WGDS_WIFI_DATA_SIZE Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 023/110] iwlwifi: mvm: support sta_statistics() even on older firmware Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 024/110] iwlwifi: mvm: fix regulatory domain update when the firmware starts Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 025/110] iwlwifi: mvm: dont use SAR Geo if basic SAR is not used Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 026/110] brcmfmac: fix reporting support for 160 MHz channels Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 027/110] opp: ti-opp-supply: Dynamically update u_volt_min Greg Kroah-Hartman
2018-11-29 14:11 ` [PATCH 4.19 028/110] opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 029/110] tools/power/cpupower: fix compilation with STATIC=true Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 030/110] v9fs_dir_readdir: fix double-free on p9stat_read error Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 031/110] selinux: Add __GFP_NOWARN to allocation at str_read() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 032/110] Input: synaptics - avoid using uninitialized variable when probing Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 033/110] bfs: add sanity check at bfs_fill_super() Greg Kroah-Hartman
2018-11-29 15:23   ` Tigran Aivazian
2018-11-29 16:07     ` Greg KH
2018-11-29 16:55       ` Tigran Aivazian
2018-11-29 17:10         ` Greg KH
2018-11-29 17:31           ` Tigran Aivazian
2018-12-02 18:57             ` [PATCH 4.19.6] BFS: static inode bitmap and extra sanity checking Tigran Aivazian
2018-12-02 20:13               ` Greg KH
2018-12-02 20:21                 ` Tigran Aivazian
2018-12-03  6:47                   ` Greg KH
2018-12-02 20:19               ` Sasha Levin
2018-11-29 14:12 ` [PATCH 4.19 034/110] sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 035/110] gfs2: Dont leave s_fs_info pointing to freed memory in init_sbd Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 036/110] llc: do not use sk_eat_skb() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 037/110] mm: dont warn about large allocations for slab Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 038/110] mm/memory.c: recheck page table entry with page table lock held Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 039/110] tcp: do not release socket ownership in tcp_close() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 040/110] drm/fb-helper: Blacklist writeback when adding connectors to fbdev Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 041/110] drm/amdgpu: Add missing firmware entry for HAINAN Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 042/110] drm/vc4: Set ->legacy_cursor_update to false when doing non-async updates Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 043/110] drm/amdgpu: Fix oops when pp_funcs->switch_power_profile is unset Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 044/110] drm/i915: Disable LP3 watermarks on all SNB machines Greg Kroah-Hartman
2018-12-05 21:39   ` Ville Syrjälä
2018-12-06  7:28     ` Greg Kroah-Hartman
2018-12-07 17:01       ` Ville Syrjälä
2018-12-11 14:04         ` Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 045/110] drm/ast: change resolution may cause screen blurred Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 046/110] drm/ast: fixed cursor may disappear sometimes Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 047/110] drm/ast: Remove existing framebuffers before loading driver Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 048/110] can: flexcan: Unlock the MB unconditionally Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 049/110] can: dev: can_get_echo_skb(): factor out non sending code to __can_get_echo_skb() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 050/110] can: dev: __can_get_echo_skb(): replace struct can_frame by canfd_frame to access frame length Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 051/110] can: dev: __can_get_echo_skb(): Dont crash the kernel if can_priv::echo_skb is accessed out of bounds Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 052/110] can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 053/110] can: rx-offload: introduce can_rx_offload_get_echo_skb() and can_rx_offload_queue_sorted() functions Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 054/110] can: rx-offload: rename can_rx_offload_irq_queue_err_skb() to can_rx_offload_queue_tail() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 055/110] can: flexcan: use can_rx_offload_queue_sorted() for flexcan_irq_bus_*() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 056/110] can: flexcan: handle tx-complete CAN frames via rx-offload infrastructure Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 057/110] can: raw: check for CAN FD capable netdev in raw_sendmsg() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 058/110] can: hi311x: Use level-triggered interrupt Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 059/110] can: flexcan: Always use last mailbox for TX Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 060/110] can: flexcan: remove not needed struct flexcan_priv::tx_mb and struct flexcan_priv::tx_mb_idx Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 061/110] ACPICA: AML interpreter: add region addresses in global list during initialization Greg Kroah-Hartman
2018-12-14 17:03   ` Jeremy Cline
2018-12-14 17:42     ` Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 062/110] IB/hfi1: Eliminate races in the SDMA send error path Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 063/110] fsnotify: generalize handling of extra event flags Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 064/110] fanotify: fix handling of events on child sub-directory Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 065/110] pinctrl: meson: fix pinconf bias disable Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 066/110] pinctrl: meson: fix gxbb ao pull register bits Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 067/110] pinctrl: meson: fix gxl " Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 068/110] pinctrl: meson: fix meson8 " Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 069/110] pinctrl: meson: fix meson8b " Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 070/110] tools/testing/nvdimm: Fix the array size for dimm devices Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 071/110] scsi: lpfc: fix remoteport access Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 072/110] scsi: hisi_sas: Remove set but not used variable dq_list Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 073/110] KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 074/110] cpufreq: imx6q: add return value check for voltage scale Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 075/110] rtc: cmos: Do not export alarm rtc_ops when we do not support alarms Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 076/110] rtc: pcf2127: fix a kmemleak caused in pcf2127_i2c_gather_write Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 077/110] crypto: simd - correctly take reqsize of wrapped skcipher into account Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 078/110] floppy: fix race condition in __floppy_read_block_0() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 079/110] powerpc/io: Fix the IO workarounds code to work with Radix Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 080/110] sched/fair: Fix cpu_util_wake() for execl type workloads Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 081/110] perf/x86/intel/uncore: Add more IMC PCI IDs for KabyLake and CoffeeLake CPUs Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 082/110] ARM: make lookup_processor_type() non-__init Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 083/110] ARM: clean up per-processor check_bugs method call Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 084/110] ARM: add PROC_VTABLE and PROC_TABLE macros Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 085/110] ARM: spectre-v2: per-CPU vtables to work around big.Little systems Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 086/110] block: copy ioprio in __bio_clone_fast() and bounce Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 087/110] SUNRPC: Fix a bogus get/put in generic_key_to_expire() Greg Kroah-Hartman
2018-11-29 14:12 ` [PATCH 4.19 088/110] riscv: add missing vdso_install target Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 089/110] RISC-V: Silence some module warnings on 32-bit Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 090/110] drm/amdgpu: fix bug with IH ring setup Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 091/110] kdb: Use strscpy with destination buffer size Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 092/110] NFSv4: Fix an Oops during delegation callbacks Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 093/110] powerpc/numa: Suppress "VPHN is not supported" messages Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 094/110] efi/arm: Revert deferred unmap of early memmap mapping Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 095/110] z3fold: fix possible reclaim races Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 096/110] mm, memory_hotplug: check zone_movable in has_unmovable_pages Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 097/110] tmpfs: make lseek(SEEK_DATA/SEK_HOLE) return ENXIO with a negative offset Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 098/110] mm, page_alloc: check for max order in hot path Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 099/110] dax: Avoid losing wakeup in dax_lock_mapping_entry Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 100/110] include/linux/pfn_t.h: force ~ to be parsed as an unary operator Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 101/110] tty: wipe buffer Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 102/110] tty: wipe buffer if not echoing data Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 103/110] gfs2: Fix iomap buffer head reference counting bug Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 104/110] rcu: Make need_resched() respond to urgent RCU-QS needs Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 105/110] media: ov5640: Re-work MIPI startup sequence Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 106/110] media: ov5640: Fix timings setup code Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 107/110] media: ov5640: fix exposure regression Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 108/110] media: ov5640: fix auto gain & exposure when changing mode Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 109/110] media: ov5640: fix wrong binning value in exposure calculation Greg Kroah-Hartman
2018-11-29 14:13 ` [PATCH 4.19 110/110] media: ov5640: fix auto controls values when switching to manual mode Greg Kroah-Hartman
2018-11-29 18:11 ` [PATCH 4.19 000/110] 4.19.6-stable review kernelci.org bot
2018-11-29 20:36 ` shuah
2018-11-30  7:15   ` Greg Kroah-Hartman
2018-11-29 22:24 ` Harsh Shandilya
2018-11-30  7:17   ` Greg Kroah-Hartman
2018-11-30 15:06     ` Harsh Shandilya
2018-11-30  8:52 ` Naresh Kamboju
2018-11-30 10:37   ` Greg Kroah-Hartman
2018-11-30 15:29 ` Greg Kroah-Hartman
2018-11-30 22:29 ` Guenter Roeck
2018-12-01  8:23   ` Greg Kroah-Hartman

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