KCSAN: data-race in p9_poll_workfn / p9_write

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (5) v9fs	6	2	471d	478d	0/29	auto-obsoleted due to no activity on 2024/05/09 10:29
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (4) v9fs	6	1	1039d	1039d	0/29	auto-obsoleted due to no activity on 2022/10/18 20:14
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (7) v9fs	6	2	55d	67d	0/29	moderation: reported on 2025/05/12 21:18
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (3) v9fs	6	1	1459d	1459d	0/29	auto-closed as invalid on 2021/08/25 10:41
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (6) v9fs	6	3	409d	426d	0/29	auto-obsoleted due to no activity on 2024/07/10 06:15
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work v9fs	6	43	2050d	2095d	0/29	auto-closed as invalid on 2020/02/15 21:46

================================================================== BUG: KCSAN: data-race in p9_poll_workfn / p9_write_work write to 0xffff888143f8a894 of 4 bytes by task 17 on cpu 1: p9_write_work+0x4b1/0x7c0 net/9p/trans_fd.c:496 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2275 worker_thread+0x636/0xae0 kernel/workqueue.c:2421 kthread+0x1d0/0x1f0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 read to 0xffff888143f8a894 of 4 bytes by task 1011 on cpu 0: p9_poll_mux net/9p/trans_fd.c:643 [inline] p9_poll_workfn+0x202/0x410 net/9p/trans_fd.c:1145 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2275 worker_thread+0x636/0xae0 kernel/workqueue.c:2421 kthread+0x1d0/0x1f0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1011 Comm: kworker/0:2 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events p9_poll_workfn ==================================================================