KCSAN: data-race in p9_conn_cancel / p9_poll

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in p9_conn_cancel / p9_poll_workfn (4) v9fs	1	37d	37d	0/26	auto-obsoleted due to no activity on 2024/05/02 19:52
upstream	KCSAN: data-race in p9_conn_cancel / p9_poll_workfn (2) v9fs	1	285d	285d	0/26	auto-obsoleted due to no activity on 2023/08/28 09:43
upstream	KCSAN: data-race in p9_conn_cancel / p9_poll_workfn (5) v9fs	1	1d01h	1d01h	0/26	moderation: reported on 2024/05/04 01:35
upstream	KCSAN: data-race in p9_conn_cancel / p9_poll_workfn (3) v9fs	1	227d	227d	0/26	auto-obsoleted due to no activity on 2023/10/26 00:39

================================================================== BUG: KCSAN: data-race in p9_conn_cancel / p9_poll_workfn write to 0xffff888104a50028 of 4 bytes by task 7 on cpu 0: p9_conn_cancel+0xb7/0x460 net/9p/trans_fd.c:201 p9_read_work+0x851/0x8c0 net/9p/trans_fd.c:404 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 0xffff888104a50028 of 4 bytes by task 17 on cpu 1: p9_poll_mux net/9p/trans_fd.c:622 [inline] p9_poll_workfn+0xd6/0x410 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: 0x00000000 -> 0xffffffea Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G W 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events p9_poll_workfn ==================================================================