Sebastian Andrzej Siewior 34e8e625f8 hrtimer: Don't dereference the hrtimer pointer after the callback ...

A hrtimer can be released in its callback, but lockdep_hrtimer_exit()
dereferences the pointer after the callback returns, i.e. a potential use
after free.

Retrieve the context in which the hrtimer expires before the callback is
invoked and use it in lockdep_hrtimer_exit().

Fixes: 40db173965c0 ("lockdep: Add hrtimer context tracing bits")
Reported-by: syzbot+62c155c276e580cfb606@syzkaller.appspotmail.com
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200331201849.fkp2siy3vcdqvqlz@linutronix.de
Signed-off-by: celtare21 <celtare21@gmail.com>

2022-04-11 07:23:24 +00:00

..

alarmtimer.c

posix-timers: Use a callback for cancel synchronization on PREEMPT_RT

2022-04-11 07:23:23 +00:00

clockevents.c

…

clocksource.c

Merge android-4.14.171 (998aa7d) into msm-4.14

2020-07-27 11:04:03 +05:30

hrtimer.c

hrtimer: Don't dereference the hrtimer pointer after the callback

2022-04-11 07:23:24 +00:00

itimer.c

time: Prevent undefined behaviour in timespec64_to_ns()

2020-11-18 18:27:52 +01:00

jiffies.c

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Kconfig

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Makefile

treewide: move more selectively to Ofast

2022-01-19 09:55:20 +00:00

ntp_internal.h

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ntp.c

Merge 4.14.135 into android-4.14-q

2019-07-31 08:11:10 +02:00

posix-clock.c

ptp: fix the race between the release of ptp_clock and cdev

2020-01-04 14:00:12 +01:00

posix-cpu-timers.c

sm8150: squashed commit for code-quality fixes using gcc-9.3.0 with -O3

2021-04-12 07:17:55 +00:00

posix-stubs.c

…

posix-timers.c

posix-timers: Use a callback for cancel synchronization on PREEMPT_RT

2022-04-11 07:23:23 +00:00

posix-timers.h

posix-timers: Use a callback for cancel synchronization on PREEMPT_RT

2022-04-11 07:23:23 +00:00

sched_clock.c

Revert "time: sched_clock: record cycle count in suspend and resume"

2021-05-24 15:28:43 +00:00

test_udelay.c

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tick-broadcast-hrtimer.c

tick: broadcast-hrtimer: Fix a race in bc_set_next

2019-10-11 18:18:46 +02:00

tick-broadcast.c

tick/broadcast: Use for_each_cpu() specially on UP kernels

2018-05-22 18:54:00 +02:00

tick-common.c

timers, sched/clock: Hook into s2idle freeze path

2018-07-12 17:17:29 +05:30

tick-internal.h

hrtimer: Unify remote enqueue handling

2022-04-11 07:23:21 +00:00

tick-oneshot.c

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tick-sched.c

hrtimer: Optimize the hrtimer code by using static keys for migration_enable/nohz_active

2022-04-11 07:23:20 +00:00

tick-sched.h

Revert "cpuidle: Fix cpu frequent exits from low power mode"

2018-09-18 11:51:58 +05:30

time.c

time: Move frequently used functions to headers and inline

2021-07-26 06:33:07 +00:00

timeconst.bc

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timeconv.c

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timecounter.c

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timekeeping_debug.c

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timekeeping_internal.h

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timekeeping.c

Merge tag 'v4.14.259' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux into twelve

2022-01-17 11:16:50 +00:00

timekeeping.h

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timer_list.c

timer_list: Guard procfs specific code

2019-07-31 07:28:28 +02:00

timer.c

hrtimer: Unify remote enqueue handling

2022-04-11 07:23:21 +00:00