================================================================== BUG: KCSAN: data-race in io_sq_thread / io_sq_thread_park write to 0xffff88811f1a1578 of 8 bytes by task 21236 on cpu 0: io_sq_thread+0xb0d/0xb90 io_uring/sqpoll.c:308 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read to 0xffff88811f1a1578 of 8 bytes by task 25192 on cpu 1: io_sq_thread_park+0x1b/0x80 io_uring/sqpoll.c:45 io_ring_exit_work+0x178/0x4f0 io_uring/io_uring.c:3039 process_one_work+0x3e6/0x750 kernel/workqueue.c:2408 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2555 kthread+0x1d7/0x210 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0xffff888108480300 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 25192 Comm: kworker/u4:44 Not tainted 6.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: events_unbound io_ring_exit_work ==================================================================