------------[ 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#1: dhcpcd-run-hook/8497 Modules linked in: CPU: 1 UID: 0 PID: 8497 Comm: dhcpcd-run-hook Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP 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 : ffff800097bd7b20 x29: ffff800097bd7b70 x28: dfff800000000000 x27: ffff700012f7af84 x26: ffff0000ccc99000 x25: 0000000000000008 x24: 1fffe000186d9ab1 x23: dfff800000000000 x22: ffff0000ccc991c0 x21: 0000000000000100 x20: ffff800092e87000 x19: ffff0000d842ca88 x18: 0000000000000000 x17: ffff80010c451000 x16: ffff800082e5e68c x15: 0000000000000001 x14: 1ffff0001229b888 x13: 0000000000000000 x12: 0000000000000000 x11: 00000000000047b5 x10: 0000000000ff0100 x9 : 560ffe87a9cc6400 x8 : 560ffe87a9cc6400 x7 : ffff8000805761f8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807f1034 x2 : 0000000000000001 x1 : 0000000000000102 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 __sanitizer_cov_trace_pc+0x8/0x84 kernel/kcov.c:210 (P) check_preemption_disabled+0x30/0xe4 lib/smp_processor_id.c:16 debug_smp_processor_id+0x20/0x2c lib/smp_processor_id.c:58 rcu_lockdep_current_cpu_online+0x7c/0x1dc kernel/rcu/tree.c:4028 rcu_read_lock_held_common kernel/rcu/update.c:113 [inline] rcu_read_lock_held+0x20/0x50 kernel/rcu/update.c:349 lookup_page_ext mm/page_ext.c:254 [inline] page_ext_lookup+0xec/0x164 mm/page_ext.c:509 page_ext_iter_begin include/linux/page_ext.h:132 [inline] page_table_check_set+0x1fc/0x53c mm/page_table_check.c:113 __page_table_check_ptes_set+0x294/0x2cc mm/page_table_check.c:212 page_table_check_ptes_set include/linux/page_table_check.h:76 [inline] __set_ptes_anysz+0x46c/0x4b0 arch/arm64/include/asm/pgtable.h:719 __set_ptes arch/arm64/include/asm/pgtable.h:751 [inline] set_ptes arch/arm64/include/asm/pgtable.h:1801 [inline] set_pte_range+0x500/0x62c mm/memory.c:5483 filemap_map_order0_folio mm/filemap.c:3856 [inline] filemap_map_pages+0xfbc/0x1bd8 mm/filemap.c:3921 do_fault_around mm/memory.c:5713 [inline] do_read_fault mm/memory.c:5746 [inline] do_fault mm/memory.c:5889 [inline] do_pte_missing+0x15f8/0x2c88 mm/memory.c:4401 handle_pte_fault mm/memory.c:6273 [inline] __handle_mm_fault mm/memory.c:6411 [inline] handle_mm_fault+0x1488/0x2678 mm/memory.c:6580 do_page_fault+0x410/0x13cc arch/arm64/mm/fault.c:657 do_translation_fault+0xc4/0x114 arch/arm64/mm/fault.c:793 do_mem_abort+0x70/0x194 arch/arm64/mm/fault.c:933 el0_ia+0xb4/0x300 arch/arm64/kernel/entry-common.c:558 el0t_64_sync_handler+0xfc/0x12c arch/arm64/kernel/entry-common.c:749 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 105 hardirqs last enabled at (104): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (104): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (105): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (105): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (24): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (97): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---