------------[ cut here ]------------
WARNING: io_uring/sqpoll.c:88 at io_sq_thread_stop+0x180/0x1b0 io_uring/sqpoll.c:88, CPU#1: kworker/u8:9/3078
Modules linked in:
CPU: 1 UID: 0 PID: 3078 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/31/2026
Workqueue: iou_exit io_ring_exit_work
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : io_sq_thread_stop+0x180/0x1b0 io_uring/sqpoll.c:88
lr : io_sq_thread_stop+0x180/0x1b0 io_uring/sqpoll.c:88
sp : ffff80009b2d78e0
x29: ffff80009b2d78e0 x28: ffff0000c58be8a0 x27: ffff0000c58be898
x26: ffff0000c58be898 x25: ffff0000c5fe64d8 x24: 1fffe00018bfcc90
x23: dfff800000000000 x22: 0000000000000001 x21: dfff800000000000
x20: ffff0000c58be918 x19: ffff0000c58be800 x18: 1fffe000359d3e28
x17: 0000000000000003 x16: ffff8000898b7000 x15: ffff80008996b2e0
x14: 00000000001d9a54 x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000000 x10: ffff600018b17d02 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800081942848
x2 : 0000000000000001 x1 : ffff0000cf8cd880 x0 : 0000000000000000
Call trace:
 io_sq_thread_stop+0x180/0x1b0 io_uring/sqpoll.c:88 (P)
 io_put_sq_data+0x90/0x120 io_uring/sqpoll.c:105
 io_sq_thread_finish+0x1d4/0x224 io_uring/sqpoll.c:130
 io_ring_ctx_free+0x3c/0x5e0 io_uring/io_uring.c:2322
 io_ring_exit_work+0x4b0/0x53c io_uring/io_uring.c:2658
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3578
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3659
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
irq event stamp: 157400
hardirqs last  enabled at (157399): [<ffff800086979c24>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline]
hardirqs last  enabled at (157399): [<ffff800086979c24>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:221
hardirqs last disabled at (157400): [<ffff800086953878>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:484
softirqs last  enabled at (157334): [<ffff8000830e6a6c>] spin_unlock_bh include/linux/spinlock.h:407 [inline]
softirqs last  enabled at (157334): [<ffff8000830e6a6c>] nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline]
softirqs last  enabled at (157334): [<ffff8000830e6a6c>] nsim_dev_trap_report_work+0x670/0x9cc drivers/net/netdevsim/dev.c:847
softirqs last disabled at (157332): [<ffff8000830e69e8>] spin_lock_bh include/linux/spinlock.h:353 [inline]
softirqs last disabled at (157332): [<ffff8000830e69e8>] nsim_dev_trap_report drivers/net/netdevsim/dev.c:812 [inline]
softirqs last disabled at (157332): [<ffff8000830e69e8>] nsim_dev_trap_report_work+0x5ec/0x9cc drivers/net/netdevsim/dev.c:847
---[ end trace 0000000000000000 ]---