------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci0 WARNING: kernel/workqueue.c:2298 at __queue_work+0xf6c/0x12f8 kernel/workqueue.c:2296, CPU#1: udevd/4302 Modules linked in: CPU: 1 UID: 0 PID: 4302 Comm: udevd Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __queue_work+0xf6c/0x12f8 kernel/workqueue.c:2296 lr : __queue_work+0xf6c/0x12f8 kernel/workqueue.c:2296 sp : ffff80008e8e7b10 x29: ffff80008e8e7b50 x28: dfff800000000000 x27: ffff700011d1cf84 x26: ffff0000f223b000 x25: 0000000000000008 x24: ffff0000f223b1c0 x23: dfff800000000000 x22: ffff0000d5130008 x21: 0000000000000100 x20: ffff800089f06000 x19: ffff0000f2944a70 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 00000000000019b3 x10: 0000000000ff0100 x9 : 7f4e6d998801f600 x8 : 7f4e6d998801f600 x7 : ffff8000804886d0 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000802f13b0 x2 : 0000000000000100 x1 : ffff0000d5130000 x0 : 0000000000000000 Call trace: __queue_work+0xf6c/0x12f8 kernel/workqueue.c:2296 (P) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2527 call_timer_fn+0x19c/0xa4c kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1794 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x554/0x74c kernel/time/timer.c:2386 run_timer_base+0x84/0x1b8 kernel/time/timer.c:2395 run_timer_softirq+0x20/0x48 kernel/time/timer.c:2405 handle_softirqs+0x2e4/0xd34 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:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73 invoke_softirq kernel/softirq.c:503 [inline] __irq_exit_rcu+0x1ac/0x428 kernel/softirq.c:735 irq_exit_rcu+0x14/0x84 kernel/softirq.c:752 __el1_irq arch/arm64/kernel/entry-common.c:497 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:509 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:514 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:590 get_freepointer mm/slub.c:537 [inline] (P) __refill_objects_node+0x2b0/0x4d8 mm/slub.c:7114 (P) refill_objects+0x8c/0x354 mm/slub.c:7238 refill_sheaf+0x44/0x6c mm/slub.c:2816 __pcs_replace_empty_main+0x218/0x438 mm/slub.c:4651 alloc_from_pcs mm/slub.c:4749 [inline] slab_alloc_node mm/slub.c:4883 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kmalloc_noprof+0x3d0/0x638 mm/slub.c:5307 kmalloc_noprof include/linux/slab.h:954 [inline] tomoyo_realpath_from_path+0xbc/0x4cc security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x1f8/0x438 security/tomoyo/file.c:827 tomoyo_inode_getattr+0x28/0x38 security/tomoyo/tomoyo.c:123 security_inode_getattr+0x114/0x2c0 security/security.c:1895 vfs_getattr fs/stat.c:259 [inline] vfs_fstat+0x48/0xc8 fs/stat.c:281 __do_sys_newfstat fs/stat.c:551 [inline] __se_sys_newfstat fs/stat.c:546 [inline] __arm64_sys_newfstat+0xe8/0x178 fs/stat.c:546 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 4088997 hardirqs last enabled at (4088996): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (4088996): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:198 hardirqs last disabled at (4088997): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:140 [inline] hardirqs last disabled at (4088997): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:174 softirqs last enabled at (4088254): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (4088897): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---