------------[ cut here ]------------ WARNING: CPU: 1 PID: 7163 at kernel/workqueue.c:2335 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 7163 at kernel/workqueue.c:2335 is_chained_work kernel/workqueue.c:2277 [inline] WARNING: CPU: 1 PID: 7163 at kernel/workqueue.c:2335 __queue_work+0xdec/0x12b0 kernel/workqueue.c:2334 Modules linked in: CPU: 1 PID: 7163 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #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:2277 [inline] lr : __queue_work+0xdec/0x12b0 kernel/workqueue.c:2334 sp : ffff800080017b50 x29: ffff800080017b90 x28: 1fffe0001ab6a791 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d6052800 x24: 0000000000000008 x23: ffff0000d60529c0 x22: ffff0000d5b53c88 x21: 0000000000000100 x20: ffff0000d5b53c80 x19: ffff0000ea614c10 x18: ffff80009d7973c0 x17: ffff800124fe7000 x16: ffff80008ae89e3c x15: 0000000000000002 x14: ffff80008eeb0668 x13: dfff800000000000 x12: 00000000bbb8c044 x11: 000000004660acf2 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d5b53c80 x7 : ffff80008043ebb8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d610120 x2 : ffff0000ea614c10 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:2277 [inline] __queue_work+0xdec/0x12b0 kernel/workqueue.c:2334 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2542 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 handle_softirqs+0x2ec/0xc34 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: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:637 irq_exit_rcu+0x14/0x84 kernel/softirq.c:649 __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:3914 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3956 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4120 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 __do_sys_exit_group kernel/exit.c:1038 [inline] __se_sys_exit_group kernel/exit.c:1036 [inline] pid_child_should_wake+0x0/0x1dc kernel/exit.c:1036 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 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: 161701 hardirqs last enabled at (161700): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:387 hardirqs last disabled at (161701): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (161701): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (160650): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (160650): [] handle_softirqs+0xa60/0xc34 kernel/softirq.c:582 softirqs last disabled at (161671): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]--- net_ratelimit: 211 callbacks suppressed GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog