------------[ cut here ]------------ WARNING: CPU: 1 PID: 6430 at kernel/workqueue.c:2257 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 6430 at kernel/workqueue.c:2257 is_chained_work kernel/workqueue.c:2199 [inline] WARNING: CPU: 1 PID: 6430 at kernel/workqueue.c:2257 __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 6430 Comm: syz-executor Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe50/0x1308 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2199 [inline] lr : __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 sp : ffff800080017b20 x29: ffff800080017b70 x28: 1fffe0001cedf001 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d94b3800 x24: 0000000000000008 x23: 1fffe0001cedf001 x22: ffff0000d94b39c0 x21: 0000000000000100 x20: ffff0000e76f8000 x19: ffff0000c307c8c8 x18: ffff8000800173c0 x17: 000000000002cb2f x16: ffff8000831615b0 x15: 0000000000000002 x14: ffff80008f8d05e8 x13: dfff800000000000 x12: 00000000505f5cd5 x11: 00000000493740cd x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000e76f8000 x7 : ffff800080470ed8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008decf040 x2 : ffff0000c307c8c8 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] (P) is_chained_work kernel/workqueue.c:2199 [inline] (P) __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 (P) current_wq_worker kernel/workqueue_internal.h:69 [inline] (L) is_chained_work kernel/workqueue.c:2199 [inline] (L) __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 (L) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2485 call_timer_fn+0x1b4/0x8f0 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1840 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2449 handle_softirqs+0x2e0/0xbf8 kernel/softirq.c:554 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x544 kernel/softirq.c:655 irq_exit_rcu+0x14/0x84 kernel/softirq.c:671 __el1_irq arch/arm64/kernel/entry-common.c:561 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __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) lock_acquire+0x27c/0x728 kernel/locking/lockdep.c:5828 (P) lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline] (L) lock_acquire+0x24c/0x728 kernel/locking/lockdep.c:5827 (L) touch_wq_lockdep_map+0xa8/0x164 kernel/workqueue.c:3880 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3922 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4086 hci_dev_close_sync+0x46c/0x10c0 net/bluetooth/hci_sync.c:5191 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline] hci_unregister_dev+0x1f8/0x4b8 net/bluetooth/hci_core.c:2698 vhci_release+0x7c/0xd0 drivers/bluetooth/hci_vhci.c:664 __fput+0x1bc/0x75c fs/file_table.c:431 ____fput+0x20/0x30 fs/file_table.c:459 task_work_run+0x230/0x2e0 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0x4ec/0x1ad0 kernel/exit.c:939 do_group_exit+0x194/0x22c kernel/exit.c:1088 get_signal+0x1410/0x152c kernel/signal.c:2918 do_signal+0x23c/0x391c arch/arm64/kernel/signal.c:1645 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 1329821 hardirqs last enabled at (1329820): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (1329820): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (1329821): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (1329821): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (1313194): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (1313194): [] handle_softirqs+0xa38/0xbf8 kernel/softirq.c:582 softirqs last disabled at (1328601): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]---