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    SubjectRe: [PATCH 5.10 0/5] aio poll fixes for 5.10
    On Sun, Dec 12, 2021 at 02:54:45PM +0100, Greg KH wrote:
    > On Fri, Dec 10, 2021 at 03:48:00PM -0800, Eric Biggers wrote:
    > > Backport the aio poll fixes to 5.10. This resolves a conflict in
    > > aio_poll_wake() in patch 4. It's a "trivial" conflict, but I'm sending
    > > this to make sure it doesn't get dropped.
    > >
    > > Eric Biggers (5):
    > > wait: add wake_up_pollfree()
    > > binder: use wake_up_pollfree()
    > > signalfd: use wake_up_pollfree()
    > > aio: keep poll requests on waitqueue until completed
    > > aio: fix use-after-free due to missing POLLFREE handling
    > >
    > > drivers/android/binder.c | 21 ++--
    > > fs/aio.c | 184 ++++++++++++++++++++++++++------
    > > fs/signalfd.c | 12 +--
    > > include/linux/wait.h | 26 +++++
    > > include/uapi/asm-generic/poll.h | 2 +-
    > > kernel/sched/wait.c | 7 ++
    > > 6 files changed, 195 insertions(+), 57 deletions(-)
    > >
    > > --
    > > 2.34.1
    > >
    >
    > Thanks for all of the backports, much appreciated and now queued up.
    >
    > greg k-h

    Thanks! Can you apply the following commit to 5.15-stable too? I missed that
    it's needed in 5.15:

    commit 4b3749865374899e115aa8c48681709b086fe6d3
    Author: Xie Yongji <xieyongji@bytedance.com>
    Date: Mon Sep 13 19:19:28 2021 +0800

    aio: Fix incorrect usage of eventfd_signal_allowed()

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