================================================================== BUG: KCSAN: data-race in io_wqe_enqueue / io_wqe_worker write to 0xffff888181537244 of 4 bytes by task 11549 on cpu 0: io_wqe_worker+0x7c/0x540 fs/io-wq.c:632 ret_from_fork+0x1f/0x30 read to 0xffff888181537244 of 4 bytes by task 11531 on cpu 1: io_wqe_get_acct fs/io-wq.c:173 [inline] io_wqe_activate_free_worker fs/io-wq.c:272 [inline] io_wqe_enqueue+0x3f1/0x790 fs/io-wq.c:940 io_wq_enqueue+0x31/0x40 fs/io-wq.c:973 io_queue_async_work+0x228/0x470 fs/io_uring.c:1731 io_queue_sqe_arm_apoll fs/io_uring.c:7509 [inline] __io_queue_sqe+0x390/0x7a0 fs/io_uring.c:7541 io_req_task_submit+0x8b/0xb0 fs/io_uring.c:2592 handle_tw_list fs/io_uring.c:2479 [inline] tctx_task_work+0x7d3/0xab0 fs/io_uring.c:2513 task_work_run+0x8e/0x110 kernel/task_work.c:164 get_signal+0x144f/0x15a0 kernel/signal.c:2681 arch_do_signal_or_restart+0x87/0x2b0 arch/x86/kernel/signal.c:867 exit_to_user_mode_loop kernel/entry/common.c:180 [inline] exit_to_user_mode_prepare+0xc1/0x140 kernel/entry/common.c:215 __syscall_exit_to_user_mode_work kernel/entry/common.c:297 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:308 do_syscall_64+0x37/0x50 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000004 -> 0x00000003 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 11531 Comm: syz-executor.4 Not tainted 5.17.0-syzkaller-13410-g74164d284b29-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================