syzbot

------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci3
WARNING: CPU: 1 PID: 9239 at kernel/workqueue.c:2258 __queue_work+0xe10/0x1210 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 9239 Comm: syz.4.487 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
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 : ffff800097967b20
x29: ffff800097967b70 x28: dfff800000000000 x27: ffff700012f2cf84
x26: 0000000000000008 x25: dfff800000000000 x24: ffff0000f95ce000
x23: ffff0000f95ce1c0 x22: 0000000000000100 x21: 1fffe0001f2b9c38
x20: ffff800092c29000 x19: ffff0000d3a00990 x18: 1fffe000337d9290
x17: ffff80010c9cc000 x16: ffff800082defcc0 x15: 0000000000000001
x14: 1ffff00012239b60 x13: 0000000000000000 x12: 0000000000000000
x11: 00000000000016e9 x10: 0000000000ff0100 x9 : 79b762717e62b000
x8 : 79b762717e62b000 x7 : ffff800080565b88 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807d6d54
x2 : 0000000000000002 x1 : 0000000000000100 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:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x54c/0x76c kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2404
 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:498 [inline]
 el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:510
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:515
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 lockdep_unregister_key+0x2e8/0x3cc kernel/locking/lockdep.c:6614 (P)
 __qdisc_destroy+0x170/0x4bc net/sched/sch_generic.c:1086
 qdisc_put net/sched/sch_generic.c:1112 [inline]
 shutdown_scheduler_queue+0x168/0x200 net/sched/sch_generic.c:1165
 netdev_for_each_tx_queue include/linux/netdevice.h:2664 [inline]
 dev_shutdown+0x9c/0x47c net/sched/sch_generic.c:1497
 unregister_netdevice_many_notify+0xec0/0x20e8 net/core/dev.c:12272
 unregister_netdevice_many net/core/dev.c:12347 [inline]
 unregister_netdevice_queue+0x2b4/0x300 net/core/dev.c:12161
 unregister_netdevice include/linux/netdevice.h:3389 [inline]
 __tun_detach+0x5d4/0x1304 drivers/net/tun.c:621
 tun_detach drivers/net/tun.c:637 [inline]
 tun_chr_close+0x118/0x1f8 drivers/net/tun.c:3436
 __fput+0x340/0x75c fs/file_table.c:468
 ____fput+0x20/0x58 fs/file_table.c:496
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xfc/0x178 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:81 [inline]
 el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:725
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 17285
hardirqs last  enabled at (17284): [<ffff80008ae21fa0>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (17284): [<ffff80008ae21fa0>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (17285): [<ffff80008ae21e48>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (17285): [<ffff80008ae21e48>] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170
softirqs last  enabled at (17164): [<ffff8000803d9408>] softirq_handle_end kernel/softirq.c:468 [inline]
softirqs last  enabled at (17164): [<ffff8000803d9408>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650
softirqs last disabled at (17275): [<ffff800080022024>] __do_softirq+0x14/0x20 kernel/softirq.c:656
---[ end trace 0000000000000000 ]---