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workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: kernel/workqueue.c:2298 at __queue_work+0xfd4/0x136c kernel/workqueue.c:2296, CPU#0: kworker/u8:0/12
Modules linked in:
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: netns cleanup_net
pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __queue_work+0xfd4/0x136c kernel/workqueue.c:2296
lr : __queue_work+0xfd4/0x136c kernel/workqueue.c:2296
sp : ffff80008e8e7b10
x29: ffff80008e8e7b50 x28: dfff800000000000 x27: ffff700011d1cf84
x26: ffff0000cb497000 x25: 0000000000000008 x24: ffff0000cb4971c0
x23: dfff800000000000 x22: ffff0000c19e8008 x21: ffff800089f18000
x20: ffff0000d4ad0a70 x19: ffff0000d4ad0a58 x18: 1fffe00035c1ea20
x17: ffff800125865000 x16: ffff80008e8e0000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000a3d x10: 0000000000ff0100 x9 : 48c212b7baef5600
x8 : 48c212b7baef5600 x7 : ffff80008047caa0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000802f1374
x2 : 0000000000000100 x1 : ffff0000c19e8000 x0 : 0000000000000000
Call trace:
 __queue_work+0xfd4/0x136c kernel/workqueue.c:2296 (P)
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2539
 call_timer_fn+0x194/0xa3c kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x554/0x74c kernel/time/timer.c:2386
 run_timer_base+0x84/0x1b8 kernel/time/timer.c:2395
 run_timer_softirq+0x20/0x48 kernel/time/timer.c:2405
 handle_softirqs+0x2e4/0xd34 kernel/softirq.c:622
 __do_softirq+0x14/0x20 kernel/softirq.c:656
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:78
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:889
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:83
 invoke_softirq kernel/softirq.c:503 [inline]
 __irq_exit_rcu+0x1ac/0x428 kernel/softirq.c:735
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:752
 __el1_irq arch/arm64/kernel/entry-common.c:514 [inline]
 el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:526
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:531
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:590
 __rcu_read_lock+0x10/0x84 kernel/rcu/tree_plugin.h:413 (P)
 rcu_read_lock include/linux/rcupdate.h:836 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1181 [inline]
 kernfs_root+0x20/0x26c fs/kernfs/kernfs-internal.h:74
 __kernfs_remove+0x398/0x72c fs/kernfs/dir.c:1590
 kernfs_remove_by_name_ns+0x70/0xd0 fs/kernfs/dir.c:1798
 kernfs_remove_by_name include/linux/kernfs.h:639 [inline]
 remove_files+0x94/0x18c fs/sysfs/group.c:28
 sysfs_remove_group+0x98/0x160 fs/sysfs/group.c:328
 sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:352
 device_remove_groups drivers/base/core.c:2844 [inline]
 device_remove_attrs+0x1d4/0x22c drivers/base/core.c:2980
 device_del+0x3e8/0x710 drivers/base/core.c:3894
 netdev_unregister_kobject+0x2b4/0x3ac net/core/net-sysfs.c:2314
 unregister_netdevice_many_notify+0x13c0/0x18d8 net/core/dev.c:12456
 unregister_netdevice_many+0x28/0x38 net/core/dev.c:12484
 ops_exit_rtnl_list net/core/net_namespace.c:187 [inline]
 ops_undo_list+0x324/0x818 net/core/net_namespace.c:248
 cleanup_net+0x470/0x6b8 net/core/net_namespace.c:702
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x79c/0x1098 kernel/workqueue.c:3397
 worker_thread+0x754/0xba0 kernel/workqueue.c:3478
 kthread+0x2f8/0x3c8 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
irq event stamp: 187775
hardirqs last  enabled at (187774): [<ffff80008675f3d4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline]
hardirqs last  enabled at (187774): [<ffff80008675f3d4>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:198
hardirqs last disabled at (187775): [<ffff80008675f27c>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:140 [inline]
hardirqs last disabled at (187775): [<ffff80008675f27c>] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:174
softirqs last  enabled at (187298): [<ffff800084b69044>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (187298): [<ffff800084b69044>] netif_addr_unlock_bh include/linux/netdevice.h:4962 [inline]
softirqs last  enabled at (187298): [<ffff800084b69044>] dev_mc_flush+0x68/0x80 net/core/dev_addr_lists.c:1174
softirqs last disabled at (187741): [<ffff8000800204b0>] __do_softirq+0x14/0x20 kernel/softirq.c:656
---[ end trace 0000000000000000 ]---