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linux/kernel/time
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Zhan Xusheng 5d16467ae5 alarmtimer: Fix argument order in alarm_timer_forward() 
alarm_timer_forward() passes arguments to alarm_forward() in the wrong
order:

  alarm_forward(alarm, timr->it_interval, now);

However, alarm_forward() is defined as:

  u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval);

and uses the second argument as the current time:

  delta = ktime_sub(now, alarm->node.expires);

Passing the interval as "now" results in incorrect delta computation,
which can lead to missed expirations or incorrect overrun accounting.

This issue has been present since the introduction of
alarm_timer_forward().

Fix this by swapping the arguments.

Fixes: e7561f1633 ("alarmtimer: Implement forward callback")
Signed-off-by: Zhan Xusheng <zhanxusheng@xiaomi.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260323061130.29991-1-zhanxusheng@xiaomi.com
 		2026-03-24 23:17:14 +01:00
..
Kconfig time: Introduce auxiliary POSIX clocks 2025-06-19 14:28:22 +02:00
Makefile time: Build generic update_vsyscall() only with generic time vDSO 2025-09-04 11:23:50 +02:00
alarmtimer.c alarmtimer: Fix argument order in alarm_timer_forward() 2026-03-24 23:17:14 +01:00
clockevents.c treewide: Update email address 2026-01-11 06:09:11 -10:00
clocksource-wdtest.c clocksource/wdtest: Print time values for short udelay(1) 2025-01-15 19:49:13 +01:00
clocksource.c clocksource: Reduce watchdog readout delay limit to prevent false positives 2026-01-21 11:33:11 +01:00
hrtimer.c Updates for the core time subsystem: 2026-02-10 16:41:59 -08:00
itimer.c timers/itimer: Avoid direct access to hrtimer clockbase 2025-09-09 12:27:17 +02:00
jiffies.c time/jiffies: Fix sysctl file error on configurations where USER_HZ < HZ 2026-03-04 13:48:31 +01:00
namespace.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
ntp.c ntp: Use ktime_get_ntp_seconds() 2025-06-19 14:28:24 +02:00
ntp_internal.h ntp: Rename __do_adjtimex() to ntp_adjtimex() 2025-06-19 14:28:23 +02:00
posix-clock.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
posix-cpu-timers.c hrtimer: Store time as ktime_t in restart block 2025-11-14 16:31:19 +01:00
posix-stubs.c posix-timers: Get rid of [COMPAT_]SYS_NI() uses 2023-12-20 21:30:27 -08:00
posix-timers.c compiler-context-analysis: Remove __cond_lock() function-like helper 2026-01-05 16:43:33 +01:00
posix-timers.h timekeeping: Add minimal posix-timers support for auxiliary clocks 2025-06-27 20:13:12 +02:00
sched_clock.c time/sched_clock: Use ACCESS_PRIVATE() to evaluate hrtimer::function 2026-01-13 18:08:57 +01:00
sleep_timeout.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
test_udelay.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
tick-broadcast-hrtimer.c time: Switch to hrtimer_setup() 2025-02-18 10:32:33 +01:00
tick-broadcast.c treewide: Update email address 2026-01-11 06:09:11 -10:00
tick-common.c treewide: Update email address 2026-01-11 06:09:11 -10:00
tick-internal.h cpufreq: ondemand: Simplify idle cputime granularity test 2026-01-28 22:24:58 +01:00
tick-legacy.c timekeeping: remove xtime_update 2020-10-30 21:57:07 +01:00
tick-oneshot.c treewide: Update email address 2026-01-11 06:09:11 -10:00
tick-sched.c Updates for the core time subsystem: 2026-02-10 16:41:59 -08:00
tick-sched.h tick/sched: Fix struct tick_sched doc warnings 2024-04-01 10:36:35 +02:00
time.c time/jiffies: Mark jiffies_64_to_clock_t() notrace 2026-03-11 10:33:12 +01:00
time_test.c time/kunit: Document handling of negative years of is_leap() 2026-02-02 12:37:54 +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: Inline timecounter_cyc2time() 2025-12-15 20:16:49 +01:00
timekeeping.c timekeeping: Fix timex status validation for auxiliary clocks 2026-03-04 20:05:37 +01:00
timekeeping.h asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
timekeeping_debug.c timekeeping: Add percpu counter for tracking floor swap events 2024-10-10 10:20:46 +02:00
timekeeping_internal.h timekeeping: Provide ktime_get_ntp_seconds() 2025-06-19 14:28:23 +02:00
timer.c cpufreq: ondemand: Simplify idle cputime granularity test 2026-01-28 22:24:58 +01:00
timer_list.c hrtimer: Remove hrtimer_clock_base:: Get_time 2025-09-09 12:27:18 +02:00
timer_migration.c cgroup: Fixes for v7.0-rc2 2026-03-03 14:25:18 -08:00
timer_migration.h timers/migration: Rename 'online' bit to 'available' 2025-11-20 20:17:31 +01:00
vsyscall.c vdso/vsyscall: Avoid slow division loop in auxiliary clock update 2025-09-03 11:55:11 +02:00