------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci4 WARNING: kernel/workqueue.c:2298 at __queue_work+0xf6c/0x12f8 kernel/workqueue.c:2296, CPU#1: syz-executor/8554 Modules linked in: CPU: 1 UID: 0 PID: 8554 Comm: syz-executor 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: ffff0000c6551000 x25: 0000000000000008 x24: ffff0000c65511c0 x23: dfff800000000000 x22: ffff0000e1271d08 x21: 0000000000000100 x20: ffff800089f06000 x19: ffff0000f329ca70 x18: 0000000000000000 x17: ffff8001258ac000 x16: ffff80008e8e0000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000001be8 x10: 0000000000ff0100 x9 : e3aa0984e3e2fe00 x8 : e3aa0984e3e2fe00 x7 : ffff8000804886d0 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000802f13b0 x2 : 0000000000000101 x1 : ffff0000e1271d00 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 __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:178 [inline] (P) _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:198 (P) __debug_check_no_obj_freed lib/debugobjects.c:1125 [inline] debug_check_no_obj_freed+0x2e4/0x3c0 lib/debugobjects.c:1146 __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0x488/0xb90 mm/page_alloc.c:2943 ___free_pages+0x1bc/0x1d8 mm/page_alloc.c:5307 __free_pages+0x14/0x20 mm/page_alloc.c:5345 ___free_pages_bulk mm/kasan/shadow.c:333 [inline] __kasan_populate_vmalloc_do mm/kasan/shadow.c:385 [inline] __kasan_populate_vmalloc+0x144/0x1d8 mm/kasan/shadow.c:424 kasan_populate_vmalloc include/linux/kasan.h:580 [inline] alloc_vmap_area+0xe9c/0x14f0 mm/vmalloc.c:2123 __get_vm_area_node+0x220/0x32c mm/vmalloc.c:3226 __vmalloc_node_range_noprof+0x2c4/0x10dc mm/vmalloc.c:4024 __vmalloc_node_noprof+0xec/0x14c mm/vmalloc.c:4124 vzalloc_noprof+0x3c/0x4c mm/vmalloc.c:4202 alloc_counters+0x84/0x4fc net/ipv4/netfilter/ip_tables.c:799 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:837 [inline] get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline] do_ip6t_get_ctl+0x81c/0x107c net/ipv6/netfilter/ip6_tables.c:1677 nf_getsockopt+0x90/0xd0 net/netfilter/nf_sockopt.c:116 ipv6_getsockopt+0x220/0x3b0 net/ipv6/ipv6_sockglue.c:1464 tcp_getsockopt+0xcc/0xe8 net/ipv4/tcp.c:4870 sock_common_getsockopt+0xa8/0xc4 net/core/sock.c:3967 do_sock_getsockopt+0x354/0x790 net/socket.c:2487 __sys_getsockopt+0xfc/0x168 net/socket.c:2518 __do_sys_getsockopt net/socket.c:2525 [inline] __se_sys_getsockopt net/socket.c:2522 [inline] __arm64_sys_getsockopt+0xb8/0xd4 net/socket.c:2522 __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: 388207 hardirqs last enabled at (388206): [] __local_bh_enable_ip+0x1ec/0x35c kernel/softirq.c:455 hardirqs last disabled at (388207): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:140 [inline] hardirqs last disabled at (388207): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:174 softirqs last enabled at (387922): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (387922): [] release_sock+0x150/0x228 net/core/sock.c:3825 softirqs last disabled at (388101): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---