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BUG: KCSAN: data-race in io_req_task_complete / io_wq_free_work

write to 0xffff888105756b44 of 4 bytes by task 6120 on cpu 1:
 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 0xffff888105756b44 of 4 bytes by task 6121 on cpu 0:
 req_ref_put_and_test fs/io_uring.c:1238 [inline]
 io_put_req_find_next fs/io_uring.c:2715 [inline]
 io_wq_free_work+0x22/0x240 fs/io_uring.c:7301
 io_worker_handle_work+0x565/0xc20 fs/io-wq.c:598
 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: 0 PID: 6121 Comm: iou-wrk-6120 Not tainted 5.17.0-syzkaller-10753-gbddac7c1e02b-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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