syzbot

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workqueue: cannot queue hci_cmd_timeout on wq hci4
WARNING: CPU: 0 PID: 7083 at kernel/workqueue.c:2256 __queue_work+0xe10/0x1210 kernel/workqueue.c:2254
Modules linked in:
CPU: 0 UID: 0 PID: 7083 Comm: syz.4.72 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __queue_work+0xe10/0x1210 kernel/workqueue.c:2254
lr : __queue_work+0xe10/0x1210 kernel/workqueue.c:2254
sp : ffff800080007b20
x29: ffff800080007b70 x28: dfff800000000000 x27: ffff700010000f84
x26: 0000000000000008 x25: dfff800000000000 x24: ffff0000d2127800
x23: ffff0000d21279c0 x22: 0000000000000100 x21: 1fffe0001a424f38
x20: ffff800092df4000 x19: ffff0000d42f0988 x18: 00000000f06fd522
x17: ffff80010c5d9000 x16: ffff80008b007340 x15: 0000000000000001
x14: 1ffff00012271dc4 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700012271dc5 x10: 0000000000ff0100 x9 : bcb0f39c6e525300
x8 : bcb0f39c6e525300 x7 : ffff800080563af4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807de334
x2 : 0000000000000002 x1 : 0000000100000101 x0 : 0000000000000000
Call trace:
 __queue_work+0xe10/0x1210 kernel/workqueue.c:2254 (P)
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2485
 call_timer_fn+0x1b4/0x818 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x54c/0x76c kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2403
 handle_softirqs+0x328/0xc88 kernel/softirq.c:579
 __do_softirq+0x14/0x20 kernel/softirq.c:613
 ____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:460 [inline]
 __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:680
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:696
 __el1_irq arch/arm64/kernel/entry-common.c:654 [inline]
 el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:668
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:673
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592
 xas_next_entry+0x314/0x394 include/linux/xarray.h:1739 (P)
 filemap_map_pages+0xdac/0x155c mm/filemap.c:3789
 do_fault_around mm/memory.c:5531 [inline]
 do_read_fault mm/memory.c:5564 [inline]
 do_fault mm/memory.c:5707 [inline]
 do_pte_missing mm/memory.c:4234 [inline]
 handle_pte_fault mm/memory.c:6052 [inline]
 __handle_mm_fault mm/memory.c:6195 [inline]
 handle_mm_fault+0x2b64/0x4d34 mm/memory.c:6364
 faultin_page mm/gup.c:1144 [inline]
 __get_user_pages+0x1f40/0x2da0 mm/gup.c:1446
 populate_vma_page_range+0x258/0x348 mm/gup.c:1880
 __mm_populate+0x208/0x330 mm/gup.c:1983
 mm_populate include/linux/mm.h:3367 [inline]
 vm_mmap_pgoff+0x398/0x45c mm/util.c:585
 ksys_mmap_pgoff+0xd0/0x5b8 mm/mmap.c:604
 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline]
 __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline]
 __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21
 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 77953
hardirqs last  enabled at (77952): [<ffff800080421234>] queue_work_on+0xfc/0x18c kernel/workqueue.c:2394
hardirqs last disabled at (77953): [<ffff80008b028ca0>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (77953): [<ffff80008b028ca0>] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170
softirqs last  enabled at (74404): [<ffff8000803d88a0>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (74404): [<ffff8000803d88a0>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (77947): [<ffff800080022028>] __do_softirq+0x14/0x20 kernel/softirq.c:613
---[ end trace 0000000000000000 ]---