KCSAN: data-race in do_timer_create / do_timer

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in do_timer_create / do_timer_create (3) kernel	6	2	1591d	1596d	0/29	auto-closed as invalid on 2021/12/05 03:50
upstream	KCSAN: data-race in do_timer_create / do_timer_create (8) kernel	6	9	1023d	1054d	23/29	fixed on 2023/09/28 17:51
upstream	KCSAN: data-race in do_timer_create / do_timer_create (2) kernel	6	1	1721d	1721d	0/29	auto-closed as invalid on 2021/07/28 07:48
upstream	KCSAN: data-race in do_timer_create / do_timer_create (6) kernel	6	1	1261d	1261d	0/29	auto-obsoleted due to no activity on 2022/10/31 13:32
upstream	KCSAN: data-race in do_timer_create / do_timer_create (7) kernel	6	1	1219d	1219d	0/29	auto-obsoleted due to no activity on 2022/12/12 21:42
upstream	KCSAN: data-race in do_timer_create / do_timer_create (5) kernel	6	10	1315d	1420d	0/29	auto-closed as invalid on 2022/09/07 15:06
upstream	KCSAN: data-race in do_timer_create / do_timer_create (4) kernel	6	18	1459d	1547d	0/29	auto-closed as invalid on 2022/04/16 01:14

================================================================== BUG: KCSAN: data-race in do_timer_create / do_timer_create write to 0xffff88813df7c0bc of 4 bytes by task 26662 on cpu 1: posix_timer_add kernel/time/posix-timers.c:154 [inline] do_timer_create+0x349/0xad0 kernel/time/posix-timers.c:516 __do_sys_timer_create kernel/time/posix-timers.c:586 [inline] __se_sys_timer_create kernel/time/posix-timers.c:577 [inline] __x64_sys_timer_create+0xa3/0xd0 kernel/time/posix-timers.c:577 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88813df7c0bc of 4 bytes by task 26674 on cpu 0: posix_timer_add kernel/time/posix-timers.c:143 [inline] do_timer_create+0x1b5/0xad0 kernel/time/posix-timers.c:516 __do_sys_timer_create kernel/time/posix-timers.c:586 [inline] __se_sys_timer_create kernel/time/posix-timers.c:577 [inline] __x64_sys_timer_create+0xa3/0xd0 kernel/time/posix-timers.c:577 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 26674 Comm: syz-executor.5 Not tainted 5.13.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================