------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci0 WARNING: CPU: 0 PID: 6133 at kernel/workqueue.c:2258 __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 6133 Comm: udevd Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 lr : __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 sp : ffff800080007b20 x29: ffff800080007b70 x28: dfff800000000000 x27: ffff700010000f84 x26: ffff0000d40b9800 x25: dfff800000000000 x24: 0000000000000008 x23: ffff0000d40b99c0 x22: 0000000000000100 x21: 1fffe0001a817338 x20: ffff800092c0f000 x19: ffff0000d7c10948 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae33808 x15: ffff700011ed61d4 x14: 1ffff00011ed61d4 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ed61d4 x10: 0000000000ff0100 x9 : 87d198b841288000 x8 : 87d198b841288000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007478 x4 : ffff80008f727060 x3 : ffff80008054c348 x2 : 0000000000000000 x1 : 0000000100000102 x0 : 0000000000000000 Call trace: __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 (P) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2487 call_timer_fn+0x1b4/0x818 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1793 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x54c/0x76c kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2403 handle_softirqs+0x328/0xc88 kernel/softirq.c:579 __do_softirq+0x14/0x20 kernel/softirq.c:613 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x30 arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:460 [inline] __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:680 irq_exit_rcu+0x14/0x84 kernel/softirq.c:696 __el1_irq arch/arm64/kernel/entry-common.c:584 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:598 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:603 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+0x178/0x2e0 kernel/locking/lockdep.c:5874 (P) rcu_lock_acquire+0x3c/0x48 include/linux/rcupdate.h:331 rcu_read_lock_sched include/linux/rcupdate.h:932 [inline] pfn_valid include/linux/mmzone.h:2158 [inline] lowmem_page_address include/linux/mm.h:2206 [inline] folio_address include/linux/mm.h:2217 [inline] slab_address+0xa4/0x230 mm/slab.h:196 nearest_obj mm/slab.h:332 [inline] kasan_record_aux_stack+0x64/0xc8 mm/kasan/generic.c:542 __call_rcu_common kernel/rcu/tree.c:3090 [inline] call_rcu+0xfc/0x96c kernel/rcu/tree.c:3210 dentry_free+0xa4/0x170 fs/dcache.c:-1 __dentry_kill+0x434/0x594 fs/dcache.c:688 dput+0x1b8/0x290 fs/dcache.c:911 do_unlinkat+0x300/0x4dc fs/namei.c:4653 __do_sys_unlinkat fs/namei.c:4691 [inline] __se_sys_unlinkat fs/namei.c:4684 [inline] __arm64_sys_unlinkat+0xdc/0xf8 fs/namei.c:4684 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 1447287 hardirqs last enabled at (1447286): [] handle_softirqs+0x1f4/0xc88 kernel/softirq.c:563 hardirqs last disabled at (1447287): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (1447287): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (1446910): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1447285): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]---