================================================================== BUG: KCSAN: data-race in io_wqe_enqueue / io_wqe_worker write to 0xffff88813ade4484 of 4 bytes by task 29799 on cpu 0: io_wqe_worker+0x79/0x4f0 fs/io-wq.c:625 ret_from_fork+0x1f/0x30 read to 0xffff88813ade4484 of 4 bytes by task 29798 on cpu 1: io_wqe_get_acct fs/io-wq.c:172 [inline] io_wqe_activate_free_worker fs/io-wq.c:266 [inline] io_wqe_enqueue+0x381/0x740 fs/io-wq.c:935 io_wq_enqueue+0x31/0x40 fs/io-wq.c:968 io_queue_async_work+0x202/0x430 fs/io_uring.c:1615 io_queue_sqe_arm_apoll fs/io_uring.c:7083 [inline] __io_queue_sqe+0x44c/0x6a0 fs/io_uring.c:7112 io_queue_sqe+0x46/0x550 fs/io_uring.c:7139 io_submit_sqe+0x796/0x4b34 fs/io_uring.c:7347 io_submit_sqes+0x25f/0x560 fs/io_uring.c:7453 __do_sys_io_uring_enter fs/io_uring.c:10152 [inline] __se_sys_io_uring_enter+0x212/0xb00 fs/io_uring.c:10094 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:10094 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000004 -> 0x00000007 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 29798 Comm: syz-executor.1 Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================