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 kernel	6	1	1756d	1756d	0/29	auto-closed as invalid on 2021/06/14 21:07
upstream	KCSAN: data-race in do_timer_create / do_timer_create (3) kernel	6	2	1583d	1588d	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	1015d	1046d	23/29	fixed on 2023/09/28 17:51
upstream	KCSAN: data-race in do_timer_create / do_timer_create (2) kernel	6	1	1713d	1713d	0/29	auto-closed as invalid on 2021/07/28 07:48
upstream	KCSAN: data-race in do_timer_create / do_timer_create (7) kernel	6	1	1210d	1210d	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	1307d	1412d	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	1451d	1538d	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 0xffff88812f52e504 of 4 bytes by task 21921 on cpu 0: do_timer_create+0x359/0xa90 kernel/time/posix-timers.c:516 __se_sys_timer_create kernel/time/posix-timers.c:577 [inline] __x64_sys_timer_create+0xb7/0xe0 kernel/time/posix-timers.c:577 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff88812f52e504 of 4 bytes by task 21922 on cpu 1: posix_timer_add kernel/time/posix-timers.c:143 [inline] do_timer_create+0x1c0/0xa90 kernel/time/posix-timers.c:516 __se_sys_timer_create kernel/time/posix-timers.c:577 [inline] __x64_sys_timer_create+0xb7/0xe0 kernel/time/posix-timers.c:577 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000001b -> 0x0000001d Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 21922 Comm: syz-executor.3 Not tainted 6.0.0-rc7-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 ==================================================================