------------[ cut here ]------------
WARNING: CPU: 1 PID: 21 at kernel/workqueue.c:1441 __queue_work+0xf9c/0x123c kernel/workqueue.c:1441
Modules linked in:
CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 424000c5 (nZcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0xf9c/0x123c kernel/workqueue.c:1441
lr : __queue_work+0xf9c/0x123c kernel/workqueue.c:1441
sp : ffff80001c9378f0
x29: ffff80001c937930 x28: 1fffe0001814a379 x27: 0000000000000008
x26: ffff700003926f3c x25: dfff800000000000 x24: ffff0000dad8e800
x23: ffff0000dad8e9c0 x22: ffff0000c0a51bc8 x21: 1fffe0001814a379
x20: 00000000000b0012 x19: ffff0000df094bc0 x18: ffff800011abbcc0
x17: 1fffe00033edbb7e x16: ffff8000082d264c x15: 0000000000000000
x14: 00000000ffffffe0 x13: 1ffff00002a180b1 x12: 0000000000ff0100
x11: ff008000081f1d30 x10: 0000000000000000 x9 : ffff8000081f1d30
x8 : ffff0000c0a51bc0 x7 : ffff8000083afc0c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800013addf00
x2 : ffff0000df094bc0 x1 : 0000000000000100 x0 : 0000000000000000
Call trace:
 __queue_work+0xf9c/0x123c kernel/workqueue.c:1441
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:1646
 call_timer_fn+0x1b8/0x964 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1746 [inline]
 __run_timers+0x4c0/0x6d8 kernel/time/timer.c:2022
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2035
 handle_softirqs+0x318/0xc6c kernel/softirq.c:596
 run_ksoftirqd+0x7c/0x2a0 kernel/softirq.c:963
 smpboot_thread_fn+0x4b0/0x964 kernel/smpboot.c:164
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
irq event stamp: 486403
hardirqs last  enabled at (486402): [<ffff8000081a8850>] __local_bh_enable_ip+0x1f8/0x380 kernel/softirq.c:426
hardirqs last disabled at (486403): [<ffff800011a483b4>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (486403): [<ffff800011a483b4>] _raw_spin_lock_irq+0x34/0x9c kernel/locking/spinlock.c:170
softirqs last  enabled at (486308): [<ffff8000081a967c>] softirq_handle_end kernel/softirq.c:439 [inline]
softirqs last  enabled at (486308): [<ffff8000081a967c>] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624
softirqs last disabled at (486313): [<ffff8000081abf1c>] run_ksoftirqd+0x7c/0x2a0 kernel/softirq.c:963
---[ end trace 0000000000000000 ]---
vkms_vblank_simulate: vblank timer overrun