================================================================== BUG: KCSAN: data-race in io_worker_handle_work / io_wqe_wake_worker read-write to 0xffff88810e773444 of 4 bytes by task 8533 on cpu 0: __io_worker_busy fs/io-wq.c:367 [inline] io_worker_handle_work+0x4fd/0x1000 fs/io-wq.c:548 io_wqe_worker+0x202/0x810 fs/io-wq.c:614 kthread+0x1fd/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read to 0xffff88810e773444 of 4 bytes by task 8506 on cpu 1: io_wqe_wake_worker+0x163/0x220 fs/io-wq.c:308 io_wqe_enqueue+0x2a5/0x320 fs/io-wq.c:919 io_wq_enqueue+0x3a/0x40 fs/io-wq.c:926 __io_queue_async_work fs/io_uring.c:1432 [inline] io_queue_async_work+0x189/0x660 fs/io_uring.c:1442 __io_queue_sqe+0xac4/0x1160 fs/io_uring.c:6244 io_queue_sqe+0x1e2/0x580 fs/io_uring.c:6298 io_submit_sqe+0x385/0x8f0 fs/io_uring.c:6367 io_submit_sqes+0x9a8/0x1720 fs/io_uring.c:6596 __do_sys_io_uring_enter fs/io_uring.c:8983 [inline] __se_sys_io_uring_enter+0x52c/0xac0 fs/io_uring.c:8932 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:8932 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 8506 Comm: syz-executor.0 Not tainted 5.10.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================