Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 2 UID: 0 PID: 61 Comm: kworker/u32:3 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
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120
 vpanic+0x640/0x6f0 kernel/panic.c:489
 panic+0xca/0xd0 kernel/panic.c:626
 check_panic_on_warn kernel/panic.c:376 [inline]
 check_panic_on_warn+0xab/0xb0 kernel/panic.c:371
 __warn+0xf6/0x3c0 kernel/panic.c:897
 __report_bug lib/bug.c:195 [inline]
 report_bug+0x3c3/0x580 lib/bug.c:215
 handle_bug+0x184/0x210 arch/x86/kernel/traps.c:338
 exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:392
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616
RIP: 0010:io_ring_exit_work+0x3fc/0x10f0 io_uring/io_uring.c:3036
Code: 0f 85 0a 0b 00 00 48 8b 05 b1 f0 6a 09 4c 8b 74 24 68 31 ff 49 29 c6 4c 89 f6 e8 4f 45 26 fd 4d 85 f6 79 12 e8 d5 49 26 fd 90 <0f> 0b 90 48 c7 44 24 60 70 17 00 00 e8 c3 49 26 fd 48 8b 74 24 60
RSP: 0018:ffffc900009dfa80 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888073dca6c8 RCX: ffffffff84962161
RDX: ffff888020292480 RSI: ffffffff8496216b RDI: 0000000000000007
RBP: ffffc900009dfc40 R08: 0000000000000007 R09: 0000000000000000
R10: fffffffffffffffb R11: 0000000000000000 R12: ffff888073dca000
R13: dffffc0000000000 R14: fffffffffffffffb R15: ffff888073dca040
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..