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workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: kernel/workqueue.c:2258 at __queue_work+0xd38/0xfb0 kernel/workqueue.c:2256, CPU#0: syz.1.377/7388
Modules linked in:
CPU: 0 UID: 0 PID: 7388 Comm: syz.1.377 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2256
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 43 c5 9b 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 a0 eb 69 8b 4c 89 fa e8 b9 31 f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 1a 1b 36 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90000007b10 EFLAGS: 00010046
RAX: 1f27d7fd8a411b00 RBX: 0000000000000100 RCX: ffff88802fc9dac0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff11005e48e38 R08: ffff8880b8624293 R09: 1ffff110170c4852
R10: dffffc0000000000 R11: ffffed10170c4853 R12: dffffc0000000000
R13: ffff88802f374990 R14: 0000000000000008 R15: ffff88802f247178
FS: 0000000000000000(0000) GS:ffff888125ce4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0171517d60 CR3: 000000003265a000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
expire_timers kernel/time/timer.c:1793 [inline]
__run_timers kernel/time/timer.c:2372 [inline]
__run_timer_base+0x646/0x860 kernel/time/timer.c:2384
run_timer_base kernel/time/timer.c:2393 [inline]
run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
handle_softirqs+0x286/0x870 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:7189
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 10 00 00 00 74 64 bf 01 00 00 00 e8 7b dd 3d f6 e8 36 b6 75 f6 fb bf 01 00 00 00 bb aa ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900030a73c0 EFLAGS: 00000282
RAX: 1f27d7fd8a411b00 RBX: 0000000000000000 RCX: 1f27d7fd8a411b00
RDX: 0000000000000006 RSI: ffffffff8d84779f RDI: 0000000000000001
RBP: ffffc900030a7460 R08: ffffffff8f9ed277 R09: 1ffffffff1f3da4e
R10: dffffc0000000000 R11: fffffbfff1f3da4f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000614e78
irqentry_exit+0x6f/0x90 kernel/entry/common.c:211
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5872
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 db fa f5 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900030a7528 EFLAGS: 00000206
RAX: 1f27d7fd8a411b00 RBX: 0000000000000000 RCX: 1f27d7fd8a411b00
RDX: ffffffff93423b50 RSI: ffffffff8da30fc8 RDI: ffffffff8bc0e2e0
RBP: ffffffff818a9905 R08: 0000000000000008 R09: ffffffff95be00e8
R10: 00000000bca5e66e R11: 00000000f74229c5 R12: 0000000000000000
R13: ffff88802f247148 R14: 0000000000000001 R15: 0000000000000246
touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:3936
__flush_workqueue+0x121/0x14b0 kernel/workqueue.c:3978
drain_workqueue+0xd3/0x390 kernel/workqueue.c:4142
hci_dev_close_sync+0x659/0x1330 net/bluetooth/hci_sync.c:5301
hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
hci_unregister_dev+0x21a/0x510 net/bluetooth/hci_core.c:2715
vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
__fput+0x44c/0xa70 fs/file_table.c:468
task_work_run+0x1d4/0x260 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x6b5/0x2300 kernel/exit.c:966
do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb55218efc9
Code: Unable to access opcode bytes at 0x7fb55218ef9f.
RSP: 002b:00007ffc132f69a8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fb5523e7da0 RCX: 00007fb55218efc9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fb5523e7da0 R08: 0000000000000000 R09: 00000015132f6c9f
R10: 00007fb5523e7cb0 R11: 0000000000000246 R12: 000000000002f7a5
R13: 00007fb5523e6180 R14: ffffffffffffffff R15: 00007ffc132f6ac0
----------------
Code disassembly (best guess):
0: 24 20 and $0x20,%al
2: f6 44 24 21 02 testb $0x2,0x21(%rsp)
7: 74 0c je 0x15
9: 90 nop
a: 0f 0b ud2
c: 48 f7 03 10 00 00 00 testq $0x10,(%rbx)
13: 74 64 je 0x79
15: bf 01 00 00 00 mov $0x1,%edi
1a: e8 7b dd 3d f6 call 0xf63ddd9a
1f: e8 36 b6 75 f6 call 0xf675b65a
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 bb aa ff ff call 0xffffaaea <-- trapping instruction
2f: 48 c7 44 24 40 00 00 movq $0x0,0x40(%rsp)
36: 00 00
38: 9c pushf
39: 8f 44 24 40 pop 0x40(%rsp)
3d: 8b .byte 0x8b
3e: 44 rex.R
3f: 24 .byte 0x24