process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 1024 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Workqueue: iou_exit io_ring_exit_work
Call Trace:
 <TASK>
 vpanic+0x26f/0x710 kernel/panic.c:661
 panic+0xc5/0xd0 kernel/panic.c:787
 check_panic_on_warn kernel/panic.c:533 [inline]
 __warn+0x315/0x4c0 kernel/panic.c:1104
 __report_bug+0x276/0x570 lib/bug.c:254
 report_bug+0x16b/0x220 lib/bug.c:286
 handle_bug+0x9c/0x200 arch/x86/kernel/traps.c:436
 exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:490
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:593
RIP: 0010:io_sq_thread_stop+0x17e/0x1a0 io_uring/sqpoll.c:88
Code: c6 05 36 e3 e9 0b 01 48 c7 c7 e0 d9 ea 8b be 26 00 00 00 48 c7 c2 20 da ea 8b e8 8d f0 cd fc e9 4f ff ff ff e8 83 c3 f2 fc 90 <0f> 0b 90 e9 e1 fe ff ff e8 75 c3 f2 fc 90 0f 0b 90 e9 6e ff ff ff
RSP: 0018:ffffc90006337890 EFLAGS: 00010293
RAX: ffffffff84d5159d RBX: ffff88806316a000 RCX: ffff8880290a5dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100c62d42b R12: 0000000000000001
R13: 0000000000000000 R14: ffff88806316a150 R15: dffffc0000000000
 io_put_sq_data+0x8a/0x150 io_uring/sqpoll.c:105
 io_sq_thread_finish+0x1fd/0x240 io_uring/sqpoll.c:130
 io_ring_ctx_free+0x2d/0x5e0 io_uring/io_uring.c:2322
 io_ring_exit_work+0x5b1/0x640 io_uring/io_uring.c:2658
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 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..