================================================================== BUG: KCSAN: data-race in io_sq_thread / io_sq_thread_park write to 0xffff8881177e20f8 of 8 bytes by task 11167 on cpu 1: io_sq_thread+0xb19/0xc00 fs/io_uring.c:7551 ret_from_fork+0x1f/0x30 read to 0xffff8881177e20f8 of 8 bytes by task 10752 on cpu 0: io_sq_thread_park+0x17/0x70 fs/io_uring.c:7981 io_ring_exit_work+0x9c/0x3c7 fs/io_uring.c:9488 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298 worker_thread+0x616/0xa70 kernel/workqueue.c:2445 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 value changed: 0xffff88811813f000 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10752 Comm: kworker/u4:13 Not tainted 5.16.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound io_ring_exit_work ==================================================================