------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci2 WARNING: CPU: 0 PID: 6616 at kernel/workqueue.c:2258 __queue_work+0xe94/0x1324 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 6616 Comm: syz.0.15 Not tainted 6.15.0-rc1-syzkaller-g2fe2b96c3818 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe94/0x1324 kernel/workqueue.c:2256 lr : __queue_work+0xe94/0x1324 kernel/workqueue.c:2256 sp : ffff800080007b40 x29: ffff800080007b90 x28: dfff800000000000 x27: ffff700010000f88 x26: ffff80008ff3e648 x25: ffff0000d7f74800 x24: 0000000000000008 x23: ffff0000d7f749c0 x22: 0000000000000100 x21: 1fffe0001afee938 x20: ffff80009341b000 x19: ffff0000eb3a0948 x18: 0000000000000008 x17: 0000000000000000 x16: ffff8000833376cc x15: 0000000000000001 x14: 1fffe000366ddb22 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000103 x10: 0000000000ff0100 x9 : 48da55f83d6ddb00 x8 : 48da55f83d6ddb00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000800072d8 x4 : ffff800090035280 x3 : ffff8000807526f0 x2 : 0000000000000001 x1 : 0000000100000101 x0 : 0000000000000000 Call trace: __queue_work+0xe94/0x1324 kernel/workqueue.c:2256 (P) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2487 call_timer_fn+0x1b4/0x8b8 kernel/time/timer.c:1789 expire_timers kernel/time/timer.c:1835 [inline] __run_timers kernel/time/timer.c:2414 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2426 run_timer_base kernel/time/timer.c:2435 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2445 handle_softirqs+0x320/0xd34 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+0x24/0x4c 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+0x1d8/0x544 kernel/softirq.c:680 irq_exit_rcu+0x14/0x84 kernel/softirq.c:696 __el1_irq arch/arm64/kernel/entry-common.c:561 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P) arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] (P) raw_spin_rq_unlock_irq kernel/sched/sched.h:1525 [inline] (P) finish_lock_switch+0xc0/0x1e4 kernel/sched/core.c:5130 (P) finish_task_switch+0x120/0x5a8 kernel/sched/core.c:5248 context_switch kernel/sched/core.c:5385 [inline] __schedule+0x16a8/0x2c80 kernel/sched/core.c:6767 preempt_schedule_common+0xe8/0x1dc kernel/sched/core.c:6947 preempt_schedule+0x60/0x80 kernel/sched/core.c:6971 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x94/0x98 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __wake_up_common_lock kernel/sched/wait.c:108 [inline] __wake_up_sync_key+0x144/0x194 kernel/sched/wait.c:173 __unix_dgram_recvmsg+0x4c4/0xec0 net/unix/af_unix.c:2447 unix_dgram_recvmsg+0xd0/0xe8 net/unix/af_unix.c:2522 sock_recvmsg_nosec+0x90/0xec net/socket.c:1017 ____sys_recvmsg+0x58c/0x6e4 net/socket.c:2784 ___sys_recvmsg net/socket.c:2828 [inline] do_recvmmsg+0x3b8/0xb00 net/socket.c:2923 __sys_recvmmsg net/socket.c:2997 [inline] __do_sys_recvmmsg net/socket.c:3020 [inline] __se_sys_recvmmsg net/socket.c:3013 [inline] __arm64_sys_recvmmsg+0x180/0x23c net/socket.c:3013 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 93847 hardirqs last enabled at (93846): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (93846): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (93847): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (93847): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (90536): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (90536): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:607 softirqs last disabled at (93839): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- vkms_vblank_simulate: vblank timer overrun