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BUG: KCSAN: data-race in io_req_task_complete / kiocb_done

write to 0xffff888133735144 of 4 bytes by task 16713 on cpu 0:
 io_req_complete_state fs/io_uring.c:2132 [inline]
 io_req_task_complete+0x9a/0x490 fs/io_uring.c:2995
 handle_tw_list fs/io_uring.c:2480 [inline]
 tctx_task_work+0x7d3/0xab0 fs/io_uring.c:2514
 task_work_run+0x8e/0x110 kernel/task_work.c:164
 tracehook_notify_signal include/linux/tracehook.h:213 [inline]
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:187 [inline]
 exit_to_user_mode_prepare+0xfd/0x180 kernel/entry/common.c:222
 __syscall_exit_to_user_mode_work kernel/entry/common.c:304 [inline]
 syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:315
 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888133735144 of 4 bytes by task 16718 on cpu 1:
 kiocb_done+0x1f2/0x830 fs/io_uring.c:3268
 io_read fs/io_uring.c:3932 [inline]
 io_issue_sqe+0x529e/0x8200 fs/io_uring.c:7172
 io_wq_submit_work+0x1d5/0x380 fs/io_uring.c:7340
 io_worker_handle_work+0x528/0xc20 fs/io-wq.c:595
 io_wqe_worker+0x1e6/0x540 fs/io-wq.c:642
 ret_from_fork+0x1f/0x30

value changed: 0x00ac4100 -> 0x00ad0100

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 16718 Comm: iou-wrk-16713 Tainted: G        W         5.17.0-syzkaller-02003-g3bf03b9a0839-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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