------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci2 WARNING: kernel/workqueue.c:2252 at __queue_work+0xfa0/0x121c kernel/workqueue.c:2250, CPU#0: udevd/6207 Modules linked in: CPU: 0 UID: 0 PID: 6207 Comm: udevd 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+0xfa0/0x121c kernel/workqueue.c:2250 lr : __queue_work+0xfa0/0x121c kernel/workqueue.c:2250 sp : ffff800097bc7b20 x29: ffff800097bc7b70 x28: dfff800000000000 x27: ffff700012f78f84 x26: ffff0000ca729000 x25: 0000000000000008 x24: 1fffe0001897aab1 x23: dfff800000000000 x22: ffff0000ca7291c0 x21: 0000000000000100 x20: ffff800092e86000 x19: ffff0000dd378a88 x18: 0000000000000000 x17: ffff80010c42d000 x16: ffff800082e5c71c x15: 0000000000000001 x14: 1fffe0003377d0fa x13: 0000000000000000 x12: 0000000000000000 x11: ffff60003377d0fb x10: 0000000000ff0100 x9 : 937397110cf3b400 x8 : 937397110cf3b400 x7 : ffff800080575c38 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807f0908 x2 : 0000000000000001 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: __queue_work+0xfa0/0x121c kernel/workqueue.c:2250 (P) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2481 call_timer_fn+0x19c/0x814 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+0x31c/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) seqcount_lockdep_reader_access+0xd8/0xf8 include/linux/seqlock.h:74 (P) read_seqbegin include/linux/seqlock.h:836 [inline] d_alloc_parallel+0x320/0x1180 fs/dcache.c:2612 __lookup_slow+0x104/0x378 fs/namei.c:1843 lookup_slow+0x5c/0x80 fs/namei.c:1875 walk_component fs/namei.c:2221 [inline] lookup_last fs/namei.c:2722 [inline] path_lookupat+0x338/0x780 fs/namei.c:2746 filename_lookup+0x1ac/0x454 fs/namei.c:2775 do_readlinkat+0xd4/0x474 fs/stat.c:576 __do_sys_readlinkat fs/stat.c:607 [inline] __se_sys_readlinkat fs/stat.c:604 [inline] __arm64_sys_readlinkat+0x9c/0xb8 fs/stat.c:604 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 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: 1323807 hardirqs last enabled at (1323806): [] handle_softirqs+0x1f4/0xc88 kernel/softirq.c:606 hardirqs last disabled at (1323807): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (1323807): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (1323696): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1323805): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---