------------[ 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: syz.3.12/6757 Modules linked in: CPU: 1 UID: 0 PID: 6757 Comm: syz.3.12 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 : ffff800097bd7b20 x29: ffff800097bd7b70 x28: dfff800000000000 x27: ffff700012f7af84 x26: ffff0000dd31d000 x25: 0000000000000008 x24: 1fffe0001a395391 x23: dfff800000000000 x22: ffff0000dd31d1c0 x21: 0000000000000100 x20: ffff800092e87000 x19: ffff0000db738a88 x18: 1fffe00033781890 x17: ffff80010c451000 x16: ffff800082e5e68c x15: 0000000000000001 x14: 1ffff0001229b888 x13: 0000000000000000 x12: 0000000000000000 x11: 00000000000006ef x10: 0000000000ff0100 x9 : c4c00e6fa2f70500 x8 : c4c00e6fa2f70500 x7 : ffff8000805761f8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807f1034 x2 : 0000000000000001 x1 : 0000000100000101 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) __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] (P) _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 (P) spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __skb_try_recv_datagram+0x134/0x410 net/core/datagram.c:267 __unix_dgram_recvmsg+0x22c/0xb7c net/unix/af_unix.c:2576 unix_dgram_recvmsg+0xd0/0xe8 net/unix/af_unix.c:2675 sock_recvmsg_nosec+0x90/0xec net/socket.c:1078 ____sys_recvmsg+0x5e0/0x744 net/socket.c:2810 ___sys_recvmsg+0x188/0x45c net/socket.c:2854 do_recvmmsg+0x294/0x7cc net/socket.c:2949 __sys_recvmmsg net/socket.c:3023 [inline] __do_sys_recvmmsg net/socket.c:3046 [inline] __se_sys_recvmmsg net/socket.c:3039 [inline] __arm64_sys_recvmmsg+0x17c/0x238 net/socket.c:3039 __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: 101795 hardirqs last enabled at (101794): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (101794): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (101795): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (101795): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (92914): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (92914): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (101787): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---