KCSAN: data-race in copy_process / free

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in copy_process / free_pid (8) kernel	1	497d	497d	0/26	auto-obsoleted due to no activity on 2023/01/17 03:08
upstream	KCSAN: data-race in copy_process / free_pid (10) kernel	23	3d04h	131d	0/26	moderation: reported on 2023/12/10 00:02
upstream	KCSAN: data-race in copy_process / free_pid (9) kernel	12	246d	332d	0/26	auto-obsoleted due to no activity on 2023/09/21 05:02
upstream	KCSAN: data-race in copy_process / free_pid (6) kernel	2	688d	692d	0/26	auto-closed as invalid on 2022/07/06 07:38
upstream	KCSAN: data-race in copy_process / free_pid (4) kernel	1	993d	993d	0/26	auto-closed as invalid on 2021/09/04 11:26
upstream	KCSAN: data-race in copy_process / free_pid (5) kernel	32	829d	948d	0/26	auto-closed as invalid on 2022/02/15 18:33
upstream	KCSAN: data-race in copy_process / free_pid (2) kasan	1	1504d	1504d	0/26	auto-closed as invalid on 2020/05/15 22:36
upstream	KCSAN: data-race in copy_process / free_pid (7) kernel	4	588d	640d	0/26	auto-obsoleted due to no activity on 2022/10/14 18:22
upstream	KCSAN: data-race in copy_process / free_pid (3) kernel	1	1183d	1183d	0/26	auto-closed as invalid on 2021/02/26 04:07

================================================================== BUG: KCSAN: data-race in copy_process / free_pid read to 0xffffffff85a772f0 of 4 bytes by task 16723 on cpu 0: copy_process+0x2844/0x3b50 kernel/fork.c:2163 _do_fork+0xfe/0x6e0 kernel/fork.c:2366 kernel_thread+0xa4/0xd0 kernel/fork.c:2453 call_usermodehelper_exec_sync kernel/umh.c:135 [inline] call_usermodehelper_exec_work+0x75/0x190 kernel/umh.c:187 process_one_work+0x3d4/0x890 kernel/workqueue.c:2269 worker_thread+0xa0/0x800 kernel/workqueue.c:2415 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 write to 0xffffffff85a772f0 of 4 bytes by task 24413 on cpu 1: free_pid+0xfd/0x1c0 kernel/pid.c:134 copy_process+0x37d0/0x3b50 kernel/fork.c:2249 _do_fork+0xfe/0x6e0 kernel/fork.c:2366 __do_sys_clone kernel/fork.c:2521 [inline] __se_sys_clone kernel/fork.c:2502 [inline] __x64_sys_clone+0x12b/0x160 kernel/fork.c:2502 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 24413 Comm: syz-executor.4 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================