KCSAN: data-race in p9_poll_workfn / p9_write

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (2) v9fs	1	1440d	1440d	0/28	auto-closed as invalid on 2021/06/12 15:05
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (5) v9fs	2	378d	386d	0/28	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	1	947d	947d	0/28	auto-obsoleted due to no activity on 2022/10/18 20:14
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work (6) v9fs	3	316d	333d	0/28	auto-obsoleted due to no activity on 2024/07/10 06:15
upstream	KCSAN: data-race in p9_poll_workfn / p9_write_work v9fs	43	1958d	2002d	0/28	auto-closed as invalid on 2020/02/15 21:46

================================================================== BUG: KCSAN: data-race in p9_poll_workfn / p9_write_work write to 0xffff888107699894 of 4 bytes by task 4516 on cpu 0: p9_write_work+0x4b1/0x7c0 net/9p/trans_fd.c:496 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2276 worker_thread+0x636/0xae0 kernel/workqueue.c:2422 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 read to 0xffff888107699894 of 4 bytes by task 718 on cpu 1: 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:2276 worker_thread+0x636/0xae0 kernel/workqueue.c:2422 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 value changed: 0x00000009 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 718 Comm: kworker/1:2 Tainted: G W 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events p9_poll_workfn ==================================================================