================================================================== BUG: KCSAN: data-race in io_clean_op / kiocb_done write to 0xffff888104a34b58 of 4 bytes by task 7821 on cpu 1: io_clean_op+0x3aa/0x3e0 fs/io_uring.c:6635 io_req_complete_state fs/io_uring.c:1830 [inline] io_req_task_complete+0xb2/0x1e0 fs/io_uring.c:2670 tctx_task_work+0x275/0x4d0 fs/io_uring.c:2159 task_work_run+0xae/0x130 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0xf8/0x190 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:300 do_syscall_64+0x50/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888104a34b58 of 4 bytes by task 7826 on cpu 0: kiocb_done+0x1c5/0x710 fs/io_uring.c:2943 io_read fs/io_uring.c:3568 [inline] io_issue_sqe+0x3df5/0x67b0 fs/io_uring.c:6654 io_wq_submit_work+0xf5/0x2c0 fs/io_uring.c:6803 io_worker_handle_work+0x788/0xa20 fs/io-wq.c:515 io_wqe_worker+0x1b9/0x540 fs/io-wq.c:566 ret_from_fork+0x1f/0x30 value changed: 0x000c0302 -> 0x00090102 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7826 Comm: iou-wrk-7821 Tainted: G W 5.15.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================