================================================================== BUG: KCSAN: data-race in io_sq_thread / io_sq_thread_park write to 0xffff88813b4a3638 of 8 bytes by task 27968 on cpu 1: io_sq_thread+0xb19/0xc00 fs/io_uring.c:7636 ret_from_fork+0x1f/0x30 read to 0xffff88813b4a3638 of 8 bytes by task 8 on cpu 0: io_sq_thread_park+0x17/0x70 fs/io_uring.c:8080 io_ring_exit_work+0x9c/0x3c7 fs/io_uring.c:9586 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307 worker_thread+0x616/0xa70 kernel/workqueue.c:2454 kthread+0x1bf/0x1e0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 value changed: 0xffff888108af2100 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.17.0-syzkaller-00192-geaa54b1458ca-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound io_ring_exit_work ==================================================================