------------[ cut here ]------------ WARNING: CPU: 1 PID: 10327 at kernel/workqueue.c:2322 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 10327 at kernel/workqueue.c:2322 is_chained_work kernel/workqueue.c:2264 [inline] WARNING: CPU: 1 PID: 10327 at kernel/workqueue.c:2322 __queue_work+0xdec/0x12b0 kernel/workqueue.c:2321 Modules linked in: CPU: 1 PID: 10327 Comm: syz-executor.3 Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xdec/0x12b0 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2264 [inline] lr : __queue_work+0xdec/0x12b0 kernel/workqueue.c:2321 sp : ffff800080017b70 x29: ffff800080017bb0 x28: 1fffe00019d24b59 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000ccdd8800 x24: 0000000000000008 x23: ffff0000ccdd89c0 x22: ffff0000ce925ac8 x21: 0000000000000100 x20: ffff0000ce925ac0 x19: ffff0000e4d04c10 x18: ffff800098f17000 x17: ffff80012501f000 x16: ffff80008ae71340 x15: 0000000000000002 x14: ffff80008ee80668 x13: dfff800000000000 x12: 00000000bbbcc0ba x11: 000000004194a3ac x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000ce925ac0 x7 : ffff80008043f4a0 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d5eee80 x2 : ffff0000e4d04c10 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:2264 [inline] __queue_work+0xdec/0x12b0 kernel/workqueue.c:2321 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2529 call_timer_fn+0x1b4/0x93c kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1839 [inline] __run_timers kernel/time/timer.c:2418 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2429 run_timer_base kernel/time/timer.c:2438 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2448 __do_softirq+0x2e4/0xd2c kernel/softirq.c:554 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:633 irq_exit_rcu+0x14/0x84 kernel/softirq.c:645 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] lock_acquire+0x284/0x73c kernel/locking/lockdep.c:5757 touch_wq_lockdep_map+0x98/0x118 kernel/workqueue.c:3901 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3943 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4107 hci_dev_close_sync+0x384/0xf70 net/bluetooth/hci_sync.c:5144 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline] hci_unregister_dev+0x1e4/0x4a8 net/bluetooth/hci_core.c:2773 vhci_release+0x7c/0xd0 drivers/bluetooth/hci_vhci.c:674 __fput+0x30c/0x738 fs/file_table.c:422 ____fput+0x20/0x30 fs/file_table.c:450 task_work_run+0x230/0x2e0 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x4e4/0x1ac8 kernel/exit.c:878 do_group_exit+0x194/0x22c kernel/exit.c:1027 get_signal+0x1414/0x1530 kernel/signal.c:2911 do_signal+0x238/0x3e8c arch/arm64/kernel/signal.c:1308 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:713 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 324151 hardirqs last enabled at (324150): [] __do_softirq+0x1bc/0xd2c kernel/softirq.c:538 hardirqs last disabled at (324151): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (324151): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (319586): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (319586): [] __do_softirq+0xb10/0xd2c kernel/softirq.c:583 softirqs last disabled at (324149): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---