Frederic Weisbecker 8cd9da85d2 posix-cpu-timers: Prevent spuriously armed 0-value itimer ... Resetting/stopping an itimer eventually leads to it being reprogrammed with an actual "0" value. As a result the itimer expires on the next tick, triggering an unexpected signal. To fix this, make sure that struct signal_struct::it[CPUCLOCK_PROF/VIRT]::expires is set to 0 when setitimer() passes a 0 it_value, indicating that the timer must stop. Fixes: 406dd42bd1 ("posix-cpu-timers: Force next expiration recalc after itimer reset") Reported-by: Victor Stinner <vstinner@redhat.com> Reported-by: Chris Hixon <linux-kernel-bugs@hixontech.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210913145332.232023-1-frederic@kernel.org		2021-09-23 11:53:51 +02:00
..
Kconfig	-----BEGIN PGP SIGNATURE-----	2021-06-29 12:31:16 -07:00
Makefile	time: Improve performance of time64_to_tm()	2021-06-24 11:51:59 +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: Replace deprecated CPU-hotplug functions.	2021-08-10 14:53:58 +02:00
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
namespace.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
ntp.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
ntp_internal.h	ntp: Make the RTC synchronization more reliable	2020-12-11 10:40:52 +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: Prevent spuriously armed 0-value itimer	2021-09-23 11:53:51 +02:00
posix-stubs.c	posix-timers: Make clock_nanosleep() time namespace aware	2020-01-14 12:20:55 +01:00
posix-timers.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
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	Updates to the tick/nohz code in this cycle:	2021-06-28 12:22:06 -07:00
tick-sched.h	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
time.c	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
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.c	hrtimer: Add bases argument to clock_was_set()	2021-08-10 17:57:23 +02:00
timekeeping.h	asm-generic: cross-architecture timer cleanup	2020-12-16 00:07:17 -08:00
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
timer.c	timers: Move clearing of base::timer_running under base:: Lock	2021-07-27 20:57:44 +02:00
timer_list.c	timer_list: Print name of per-cpu wakeup device	2021-05-31 17:04:49 +02:00
vsyscall.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00