stable.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jann Horn <jannh@google.com>
To: stable <stable@vger.kernel.org>, Ben Hutchings <ben@decadent.org.uk>
Cc: kernel list <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: backport request for 3.16 [was: Re: [PATCH AUTOSEL 5.4 30/73] futex: Fix inode life-time issue]
Date: Wed, 8 Apr 2020 11:48:22 +0200	[thread overview]
Message-ID: <CAG48ez29d-JJOw8XMp1Z=7sDj8Kvmt+9KXC9-ux-0OBhUP02Xg@mail.gmail.com> (raw)
In-Reply-To: <CAG48ez1pzF76DpPWoAwDkXLJ01w8Swe=obBrNoBWr=iGTbH7-g@mail.gmail.com>

@Ben: You'll probably also want to take these two into the next 3.16 release.

Sorry, I forgot that 3.16 has a different maintainer...

On Mon, Mar 23, 2020 at 8:18 PM Jann Horn <jannh@google.com> wrote:
>
> On Wed, Mar 18, 2020 at 9:54 PM Sasha Levin <sashal@kernel.org> wrote:
> >
> > From: Peter Zijlstra <peterz@infradead.org>
> >
> > [ Upstream commit 8019ad13ef7f64be44d4f892af9c840179009254 ]
> >
> > As reported by Jann, ihold() does not in fact guarantee inode
> > persistence. And instead of making it so, replace the usage of inode
> > pointers with a per boot, machine wide, unique inode identifier.
> >
> > This sequence number is global, but shared (file backed) futexes are
> > rare enough that this should not become a performance issue.
>
> Please also take this patch, together with
> 8d67743653dce5a0e7aa500fcccb237cde7ad88e "futex: Unbreak futex
> hashing", into the older stable branches. This has to go all the way
> back; as far as I can tell, the bug already existed at the beginning
> of git history.

  parent reply	other threads:[~2020-04-08  9:48 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18 20:52 [PATCH AUTOSEL 5.4 01/73] cgroup-v1: cgroup_pidlist_next should update position index Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 02/73] cgroup: Iterate tasks that did not finish do_exit() Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 03/73] clk: imx8mn: Fix incorrect clock defines Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 04/73] batman-adv: Don't schedule OGM for disabled interface Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 05/73] pinctrl: meson-gxl: fix GPIOX sdio pins Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 06/73] pinctrl: imx: scu: Align imx sc msg structs to 4 Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 07/73] nfs: add minor version to nfs_server_key for fscache Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 08/73] pinctrl: core: Remove extra kref_get which blocks hogs being freed Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 09/73] r8152: check disconnect status after long sleep Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 10/73] net: dsa: mv88e6xxx: fix lockup on warm boot Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 11/73] net: phy: avoid clearing PHY interrupts twice in irq handler Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 12/73] bnxt_en: reinitialize IRQs when MTU is modified Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 13/73] bnxt_en: fix error handling when flashing from file Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 14/73] cpupower: avoid multiple definition with gcc -fno-common Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 15/73] fib: add missing attribute validation for tun_id Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 16/73] can: add missing attribute validation for termination Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 17/73] macsec: add missing attribute validation for port Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 18/73] team: add missing attribute validation for port ifindex Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 19/73] team: add missing attribute validation for array index Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 20/73] netfilter: cthelper: add missing attribute validation for cthelper Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 21/73] netfilter: nft_payload: add missing attribute validation for payload csum flags Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 22/73] netfilter: nft_tunnel: add missing attribute validation for tunnels Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 23/73] net: phy: bcm63xx: fix OOPS due to missing driver name Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 24/73] drivers/of/of_mdio.c:fix of_mdiobus_register() Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 25/73] cgroup1: don't call release_agent when it is "" Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 26/73] netfilter: nf_tables: dump NFTA_CHAIN_FLAGS attribute Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 27/73] netfilter: nf_tables: fix infinite loop when expr is not available Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 28/73] slip: make slhc_compress() more robust against malicious packets Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 29/73] net: hns3: fix a not link up issue when fibre port supports autoneg Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 30/73] futex: Fix inode life-time issue Sasha Levin
2020-03-23 19:18   ` Jann Horn
2020-03-24  8:06     ` Greg Kroah-Hartman
2020-04-08  9:48     ` Jann Horn [this message]
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 31/73] netfilter: nft_chain_nat: inet family is missing module ownership Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 32/73] dt-bindings: net: FMan erratum A050385 Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 33/73] arm64: dts: ls1043a: " Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 34/73] fsl/fman: detect " Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 35/73] bonding/alb: make sure arp header is pulled before accessing it Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 36/73] virtio_ring: Fix mem leak with vring_new_virtqueue() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 37/73] virtio-blk: fix hw_queue stopped on arbitrary error Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 38/73] virtio_balloon: Adjust label in virtballoon_probe Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 39/73] ipvlan: do not add hardware address of master to its unicast filter list Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 40/73] net: stmmac: dwmac1000: Disable ACS if enhanced descs are not used Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 41/73] drm/amd/display: update soc bb for nv14 Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 42/73] drm/amdgpu: correct ROM_INDEX/DATA offset for VEGA20 Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 43/73] futex: Unbreak futex hashing Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 44/73] ipvlan: don't deref eth hdr before checking it's set Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 45/73] ipvlan: add cond_resched_rcu() while processing muticast backlog Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 46/73] macvlan: add cond_resched() during multicast processing Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 47/73] ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 48/73] drm/exynos: Fix cleanup of IOMMU related objects Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 49/73] i2c: i801: Do not add ICH_RES_IO_SMI for the iTCO_wdt device Sasha Levin
2020-03-19  7:30   ` Wolfram Sang
2020-03-29 20:07     ` Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 50/73] iommu/vt-d: Fix RCU-list bugs in intel_iommu_init() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 51/73] iommu/vt-d: Silence RCU-list debugging warnings Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 52/73] i2c: gpio: suppress error on probe defer Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 53/73] s390/qeth: don't reset default_out_queue Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 54/73] s390/qeth: handle error when backing RX buffer Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 55/73] scsi: ipr: Fix softlockup when rescanning devices in petitboot Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 56/73] nl80211: add missing attribute validation for critical protocol indication Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 57/73] nl80211: add missing attribute validation for beacon report scanning Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 58/73] nl80211: add missing attribute validation for channel switch Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 59/73] mac80211: Do not send mesh HWMP PREQ if HWMP is disabled Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 60/73] driver code: clarify and fix platform device DMA mask allocation Sasha Levin
2020-03-19  6:49   ` Greg Kroah-Hartman
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 61/73] dpaa_eth: Remove unnecessary boolean expression in dpaa_get_headroom Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 62/73] net: fec: validate the new settings in fec_enet_set_coalesce() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 63/73] sxgbe: Fix off by one in samsung driver strncpy size arg Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 64/73] net: mvmdio: avoid error message for optional IRQ Sasha Levin
2020-03-18 20:57   ` Chris Packham
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 65/73] net: hns3: fix "tc qdisc del" failed issue Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 66/73] net: systemport: fix index check to avoid an array out of bounds access Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 67/73] iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 68/73] iommu/vt-d: Fix debugfs register reads Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 69/73] i2c: acpi: put device when verifying client fails Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 70/73] iommu/vt-d: Fix the wrong printing in RHSA parsing Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 71/73] iommu/vt-d: Ignore devices with out-of-spec domain number Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 72/73] iommu/amd: Fix IOMMU AVIC not properly update the is_run bit in IRTE Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 73/73] iommu/vt-d: Populate debugfs if IOMMUs are detected Sasha Levin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAG48ez29d-JJOw8XMp1Z=7sDj8Kvmt+9KXC9-ux-0OBhUP02Xg@mail.gmail.com' \
    --to=jannh@google.com \
    --cc=ben@decadent.org.uk \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterz@infradead.org \
    --cc=sashal@kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).