------------[ 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: sed/7853 Modules linked in: CPU: 1 UID: 0 PID: 7853 Comm: sed 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: ffff0000caf02800 x25: 0000000000000008 x24: 1fffe0001af3d391 x23: dfff800000000000 x22: ffff0000caf029c0 x21: 0000000000000100 x20: ffff800092e87000 x19: ffff0000daaa8a88 x18: 00000000ffffffff x17: ffff800093599000 x16: ffff800082e5e68c x15: 0000000000000001 x14: 1fffe000337818fa x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000337818fb x10: 0000000000ff0100 x9 : a2b1ba34666dc300 x8 : a2b1ba34666dc300 x7 : ffff8000805761f8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807f1034 x2 : 0000000000000001 x1 : 0000000000000100 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 bytes_is_nonzero mm/kasan/generic.c:97 [inline] (P) memory_is_nonzero mm/kasan/generic.c:115 [inline] (P) memory_is_poisoned_n mm/kasan/generic.c:140 [inline] (P) memory_is_poisoned mm/kasan/generic.c:172 [inline] (P) check_region_inline mm/kasan/generic.c:191 [inline] (P) kasan_check_range+0x70/0x2a4 mm/kasan/generic.c:200 (P) __kasan_check_write+0x20/0x30 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline] mt_validate_nulls lib/maple_tree.c:7129 [inline] mt_validate+0x3b3c/0x4014 lib/maple_tree.c:7179 validate_mm+0xb0/0x410 mm/vma.c:644 mmap_region+0x1478/0x1978 mm/vma.c:2792 do_mmap+0x968/0xfac mm/mmap.c:558 vm_mmap_pgoff+0x2d8/0x45c mm/util.c:581 vm_mmap+0x8c/0xb4 mm/util.c:617 elf_map fs/binfmt_elf.c:399 [inline] elf_load+0x1fc/0x5d8 fs/binfmt_elf.c:422 load_elf_interp+0x404/0x910 fs/binfmt_elf.c:689 load_elf_binary+0x1444/0x1de4 fs/binfmt_elf.c:1254 search_binary_handler fs/exec.c:1669 [inline] exec_binprm fs/exec.c:1701 [inline] bprm_execve+0x788/0x11c4 fs/exec.c:1753 do_execveat_common+0x6ac/0x834 fs/exec.c:1859 do_execve fs/exec.c:1933 [inline] __do_sys_execve fs/exec.c:2009 [inline] __se_sys_execve fs/exec.c:2004 [inline] __arm64_sys_execve+0x9c/0xb4 fs/exec.c:2004 __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: 1393 hardirqs last enabled at (1392): [] handle_softirqs+0x1f4/0xc88 kernel/softirq.c:606 hardirqs last disabled at (1393): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (1393): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (1316): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1391): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---