------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: CPU: 1 PID: 41 at kernel/workqueue.c:2258 __queue_work+0xe10/0x1210 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 41 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __queue_work+0xe10/0x1210 kernel/workqueue.c:2256
lr : __queue_work+0xe10/0x1210 kernel/workqueue.c:2256
sp : ffff800097937b20
x29: ffff800097937b70 x28: dfff800000000000 x27: ffff700012f26f84
x26: 0000000000000008 x25: dfff800000000000 x24: ffff0000c8c8d000
x23: ffff0000c8c8d1c0 x22: 0000000000000100 x21: 1fffe00019191a38
x20: ffff800092bf7000 x19: ffff0000ca4e8990 x18: 00000000ffffffff
x17: ffff80010ca32000 x16: ffff800082deb6c0 x15: 0000000000000001
x14: 1fffe000337dfefa x13: 0000000000000000 x12: 0000000000000000
x11: ffff6000337dfefb x10: 0000000000ff0100 x9 : b88d93c2c86a9e00
x8 : b88d93c2c86a9e00 x7 : ffff800080564a40 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807d5f04
x2 : 0000000000000001 x1 : 0000000100000102 x0 : 0000000000000000
Call trace:
 __queue_work+0xe10/0x1210 kernel/workqueue.c:2256 (P)
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2487
 call_timer_fn+0x1b4/0x818 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x54c/0x76c kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2403
 handle_softirqs+0x328/0xc88 kernel/softirq.c:622
 __do_softirq+0x14/0x20 kernel/softirq.c:656
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:68
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:891
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73
 invoke_softirq kernel/softirq.c:503 [inline]
 __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:723
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:739
 __el1_irq arch/arm64/kernel/entry-common.c:520 [inline]
 el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:532
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:537
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592
 find_stack+0x34/0x17c lib/stackdepot.c:601 (P)
 stack_depot_save_flags+0x1b4/0x6dc lib/stackdepot.c:668
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x54/0x78 mm/kasan/common.c:77
 __kasan_save_free_info+0x58/0x70 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x74/0xa4 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2539 [inline]
 slab_free mm/slub.c:6630 [inline]
 kmem_cache_free+0x18c/0x6dc mm/slub.c:6740
 __es_free_extent fs/ext4/extents_status.c:540 [inline]
 ext4_es_free_extent+0x198/0x3dc fs/ext4/extents_status.c:557
 __es_remove_extent+0x6f0/0x1358 fs/ext4/extents_status.c:1502
 ext4_es_insert_extent+0x464/0x2910 fs/ext4/extents_status.c:926
 ext4_map_create_blocks fs/ext4/inode.c:659 [inline]
 ext4_map_blocks+0x970/0x14a8 fs/ext4/inode.c:811
 ext4_convert_unwritten_extents+0x244/0x500 fs/ext4/extents.c:4976
 ext4_convert_unwritten_io_end_vec+0xf0/0x170 fs/ext4/extents.c:5016
 ext4_end_io_end+0xb4/0x334 fs/ext4/page-io.c:199
 ext4_do_flush_completed_IO fs/ext4/page-io.c:290 [inline]
 ext4_end_io_rsv_work+0x208/0x2cc fs/ext4/page-io.c:305
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3427
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
irq event stamp: 246675
hardirqs last  enabled at (246674): [<ffff80008ae1512c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (246674): [<ffff80008ae1512c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (246675): [<ffff80008ae14fd4>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (246675): [<ffff80008ae14fd4>] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170
softirqs last  enabled at (246646): [<ffff8000801f95fc>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (246667): [<ffff800080022024>] __do_softirq+0x14/0x20 kernel/softirq.c:656
---[ end trace 0000000000000000 ]---
vkms_vblank_simulate: vblank timer overrun