Oleg Nesterov 91530f675e 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 21:19:59 +02:00
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alarmtimer.c	kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()	2021-03-25 09:04:16 +01:00
clockevents.c
clocksource.c	clocksource: Avoid accidental unstable marking of clocksources	2022-01-27 10:54:06 +01:00
hrtimer.c	hrtimer: Ensure timerfd notification for HIGHRES=n	2021-09-15 09:50:25 +02:00
itimer.c	time: Prevent undefined behaviour in timespec64_to_ns()	2020-10-26 11:48:11 +01:00
jiffies.c	clocksource: Reduce clocksource-skew threshold	2022-01-27 10:54:05 +01:00
Kconfig	posix-cpu-timers: Provide mechanisms to defer timer handling to task_work	2020-08-06 16:50:59 +02:00
Makefile
namespace.c
ntp_internal.h
ntp.c
posix-clock.c
posix-cpu-timers.c	posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()	2021-11-18 14:04:29 +01:00
posix-stubs.c
posix-timers.c	fix race between exit_itimers() and /proc/pid/timers	2022-07-21 21:19:59 +02:00
posix-timers.h
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
tick-broadcast-hrtimer.c
tick-broadcast.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
tick-common.c
tick-internal.h	hrtimer: Ensure timerfd notification for HIGHRES=n	2021-09-15 09:50:25 +02:00
tick-oneshot.c
tick-sched.c	tick/nohz: unexport __init-annotated tick_nohz_full_setup()	2022-07-02 16:39:23 +02:00
tick-sched.h
time.c
timeconst.bc
timeconv.c
timecounter.c
timekeeping_debug.c
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 09:33:41 +02:00
timekeeping.h
timer_list.c
timer.c	timers: Fix warning condition in __run_timers()	2022-04-20 09:23:30 +02:00
vsyscall.c	timekeeping/vsyscall: Provide vdso_update_begin/end()	2020-08-06 10:57:30 +02:00