------------[ cut here ]------------
WARNING: CPU: 2 PID: 13 at io_uring/io_uring.c:2980 io_ring_exit_work+0x3fc/0x10f0 io_uring/io_uring.c:2980
Modules linked in:
CPU: 2 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: iou_exit io_ring_exit_work
RIP: 0010:io_ring_exit_work+0x3fc/0x10f0 io_uring/io_uring.c:2980
Code: 0f 85 0a 0b 00 00 48 8b 05 81 64 4b 09 4c 8b 74 24 68 31 ff 49 29 c6 4c 89 f6 e8 4f 55 e5 fc 4d 85 f6 79 12 e8 d5 59 e5 fc 90 <0f> 0b 90 48 c7 44 24 60 70 17 00 00 e8 c3 59 e5 fc 48 8b 74 24 60
RSP: 0018:ffffc900001f7a90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880134946c8 RCX: ffffffff84d5ad91
RDX: ffff88801daf0000 RSI: ffffffff84d5ad9b RDI: 0000000000000007
RBP: ffffc900001f7c50 R08: 0000000000000007 R09: 0000000000000000
R10: fffffffffffffffe R11: 0000000000000000 R12: ffff888013494000
R13: dffffc0000000000 R14: fffffffffffffffe R15: ffff888013494040
FS:  0000000000000000(0000) GS:ffff8880976b9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f380edf0980 CR3: 0000000057477000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:463
 ret_from_fork+0x56d/0x730 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>