KCSAN: data-race in p9_conn_cancel / p9_write

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in p9_conn_cancel / p9_write_work (5) v9fs	2	1d01h	26d	0/26	moderation: reported on 2024/04/07 07:31
upstream	KCSAN: data-race in p9_conn_cancel / p9_write_work (4) v9fs	2	157d	180d	0/26	auto-obsoleted due to no activity on 2024/01/02 07:46
upstream	KCSAN: data-race in p9_conn_cancel / p9_write_work (3) v9fs	1	744d	744d	0/26	auto-closed as invalid on 2022/05/24 19:24
upstream	KCSAN: data-race in p9_conn_cancel / p9_write_work (2) v9fs	2	1186d	1198d	0/26	auto-closed as invalid on 2021/03/08 14:39

================================================================== BUG: KCSAN: data-race in p9_conn_cancel / p9_write_work write to 0xffff8880407ca428 of 4 bytes by task 10791 on cpu 1: p9_conn_cancel+0x88/0x400 net/9p/trans_fd.c:199 p9_poll_mux net/9p/trans_fd.c:626 [inline] p9_poll_workfn+0x14c/0x410 net/9p/trans_fd.c:1143 process_one_work+0x3e1/0x950 kernel/workqueue.c:2272 worker_thread+0x635/0xb90 kernel/workqueue.c:2418 kthread+0x1fd/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read to 0xffff8880407ca428 of 4 bytes by task 9763 on cpu 0: p9_write_work+0x23/0x770 net/9p/trans_fd.c:449 process_one_work+0x3e1/0x950 kernel/workqueue.c:2272 worker_thread+0x635/0xb90 kernel/workqueue.c:2418 kthread+0x1fd/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9763 Comm: kworker/0:4 Not tainted 5.10.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events p9_write_work ==================================================================