Oleg Nesterov b856e5738b fix race between exit_itimers() and /proc/pid/timers ...

commit d5b36a4dbd upstream.

As Chris explains, the comment above exit_itimers() is not correct,
we can race with proc_timers_seq_ops. Change exit_itimers() to clear
signal->posix_timers with ->siglock held.

Cc: <stable@vger.kernel.org>
Reported-by: chris@accessvector.net
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-07-21 21:24:11 +02:00

..

alarmtimer.c

alarmtimer: Check RTC features instead of ops

2021-05-11 21:28:04 +02:00

clockevents.c

clockevents: Use list_move() instead of list_del()/list_add()

2021-06-22 17:16:46 +02:00

clocksource-wdtest.c

clocksource: Make clocksource watchdog test safe for slow-HZ systems

2021-08-28 17:01:32 +02:00

clocksource.c

clocksource: Avoid accidental unstable marking of clocksources

2022-01-27 11:04:08 +01:00

hrtimer.c

hrtimer: Unbreak hrtimer_force_reprogram()

2021-08-12 22:34:40 +02:00

itimer.c

time: Prevent undefined behaviour in timespec64_to_ns()

2020-10-26 11:48:11 +01:00

jiffies.c

clocksource: Make clocksource watchdog test safe for slow-HZ systems

2021-08-28 17:01:32 +02:00

Kconfig

Merge tag 'timers-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-06-29 12:31:16 -07:00

Makefile

time: Improve performance of time64_to_tm()

2021-06-24 11:51:59 +02:00

namespace.c

memcg: enable accounting for new namesapces and struct nsproxy

2021-09-03 09:58:12 -07:00

ntp_internal.h

ntp: Make the RTC synchronization more reliable

2020-12-11 10:40:52 +01:00

ntp.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

posix-clock.c

posix-clocks: Rename the clock_get() callback to clock_get_timespec()

2020-01-14 12:20:49 +01:00

posix-cpu-timers.c

posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()

2021-11-18 19:17:14 +01:00

posix-stubs.c

posix-timers: Make clock_nanosleep() time namespace aware

2020-01-14 12:20:55 +01:00

posix-timers.c

fix race between exit_itimers() and /proc/pid/timers

2022-07-21 21:24:11 +02:00

posix-timers.h

posix-clocks: Introduce clock_get_ktime() callback

2020-01-14 12:20:51 +01:00

sched_clock.c

time/sched_clock: Mark sched_clock_read_begin/retry() as notrace

2020-10-26 11:34:31 +01:00

test_udelay.c

time/debug: Remove dentry pointer for debugfs

2021-03-18 11:20:26 +01:00

tick-broadcast-hrtimer.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

tick-broadcast.c

timer_list: Print name of per-cpu wakeup device

2021-05-31 17:04:49 +02:00

tick-common.c

timekeeping: Distangle resume and clock-was-set events

2021-08-10 17:57:23 +02:00

tick-internal.h

clocksource: Make clocksource watchdog test safe for slow-HZ systems

2021-08-28 17:01:32 +02:00

tick-legacy.c

timekeeping: remove xtime_update

2020-10-30 21:57:07 +01:00

tick-oneshot.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

tick-sched.c

tick/nohz: unexport __init-annotated tick_nohz_full_setup()

2022-07-02 16:41:12 +02:00

tick-sched.h

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

time_test.c

time/kunit: Add missing MODULE_LICENSE()

2021-06-28 07:40:23 +02:00

time.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

timeconst.bc

time: Add SPDX license identifiers

2018-11-23 11:51:20 +01:00

timeconv.c

time: Improve performance of time64_to_tm()

2021-06-24 11:51:59 +02:00

timecounter.c

time/timecounter: Mark 1st argument of timecounter_cyc2time() as const

2021-04-16 21:03:50 +02:00

timekeeping_debug.c

timekeeping/debug: No need to check return value of debugfs_create functions

2019-01-29 20:08:41 +01:00

timekeeping_internal.h

timekeeping/vsyscall: Provide vdso_update_begin/end()

2020-08-06 10:57:30 +02:00

timekeeping.c

timekeeping: Add raw clock fallback for random_get_entropy()

2022-05-30 09:29:13 +02:00

timekeeping.h

Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

2020-12-16 00:07:17 -08:00

timer_list.c

timer_list: Print name of per-cpu wakeup device

2021-05-31 17:04:49 +02:00

timer.c

timers: Fix warning condition in __run_timers()

2022-04-20 09:34:21 +02:00

vsyscall.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00