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workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: CPU: 0 PID: 14667 at kernel/workqueue.c:2257 __queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 14667 Comm: syz-executor Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 28 04 00 00 48 8b 75 18 4c 89 f2 48 c7 c7 00 ff ab 8b e8 f5 16 f7 ff 90 <0f> 0b 90 90 e9 96 f7 ff ff e8 d6 53 38 00 90 0f 0b 90 e9 1b f6 ff
RSP: 0018:ffffc90000007be8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248
RDX: ffff88807e1d8000 RSI: ffffffff817ae255 RDI: 0000000000000001
RBP: ffff88805ae64930 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: fffffffffffdaf40 R12: 1ffff92000000f8f
R13: 0000000000000101 R14: ffff88805cbe9178 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff888124752000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fadcd1c0f70 CR3: 0000000063241000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x19a/0x620 kernel/time/timer.c:1747
expire_timers kernel/time/timer.c:1793 [inline]
__run_timers+0x569/0x960 kernel/time/timer.c:2372
__run_timer_base kernel/time/timer.c:2384 [inline]
__run_timer_base kernel/time/timer.c:2376 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2393
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403
handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_schedule_irq+0x4c/0x90 kernel/sched/core.c:7108
Code: df 55 65 48 8b 2d 2c 29 4b 08 53 48 89 eb 48 c1 eb 03 48 01 c3 bf 01 00 00 00 e8 bf ab 07 f6 e8 4a 37 42 f6 fb bf 01 00 00 00 af 99 ff ff 9c 58 fa f6 c4 02 75 1e bf 01 00 00 00 e8 0d 33 07
RSP: 0018:ffffc9000470f838 EFLAGS: 00000206
RAX: 00000000000296d7 RBX: ffffed100fc3b000 RCX: 0000000000000006
RDX: 0000000000000000 RSI: ffffffff8de19f59 RDI: 0000000000000001
RBP: ffff88807e1d8000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90a81257 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit+0x36/0x90 kernel/entry/common.c:307
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5875
Code: 63 34 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 62 95 0f 0f 0f 82 74 02 00 00 8b 35 4a c7 0f 0f 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 f9 62 34 12 0f 85 c7 02 00 00 48 83 c4
RSP: 0018:ffffc9000470f908 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffff88805cbe9148 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8ddf4a83 RDI: ffffffff8c157ba0
RBP: 0000000000000000 R08: 5ab81cf52b67bbc9 R09: ffffffff96c38bb0
R10: 0000000000000008 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
touch_wq_lockdep_map+0xad/0x1c0 kernel/workqueue.c:3909
__flush_workqueue+0x128/0x1230 kernel/workqueue.c:3951
drain_workqueue+0x199/0x3d0 kernel/workqueue.c:4115
hci_dev_close_sync+0x39b/0x11d0 net/bluetooth/hci_sync.c:5236
hci_dev_do_close+0x2e/0x90 net/bluetooth/hci_core.c:483
hci_unregister_dev+0x213/0x620 net/bluetooth/hci_core.c:2691
vhci_release+0x79/0xf0 drivers/bluetooth/hci_vhci.c:665
__fput+0x3ff/0xb70 fs/file_table.c:465
task_work_run+0x150/0x240 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x86c/0x2bd0 kernel/exit.c:964
do_group_exit+0xd3/0x2a0 kernel/exit.c:1105
__do_sys_exit_group kernel/exit.c:1116 [inline]
__se_sys_exit_group kernel/exit.c:1114 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1114
x64_sys_call+0x1530/0x1730 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe93f98e929
Code: Unable to access opcode bytes at 0x7fe93f98e8ff.
RSP: 002b:00007fff85cd1848 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe93f98e929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007fe93f9ee8f0 R08: 00007fff85ccf5e7 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000003 R14: 00000000ffffffff R15: 00007fff85cd1a00
----------------
Code disassembly (best guess):
0: df 55 65 fists 0x65(%rbp)
3: 48 8b 2d 2c 29 4b 08 mov 0x84b292c(%rip),%rbp # 0x84b2936
a: 53 push %rbx
b: 48 89 eb mov %rbp,%rbx
e: 48 c1 eb 03 shr $0x3,%rbx
12: 48 01 c3 add %rax,%rbx
15: bf 01 00 00 00 mov $0x1,%edi
1a: e8 bf ab 07 f6 call 0xf607abde
1f: e8 4a 37 42 f6 call 0xf642376e
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 af 99 ff ff call 0xffff99de <-- trapping instruction
2f: 9c pushf
30: 58 pop %rax
31: fa cli
32: f6 c4 02 test $0x2,%ah
35: 75 1e jne 0x55
37: bf 01 00 00 00 mov $0x1,%edi
3c: e8 .byte 0xe8
3d: 0d .byte 0xd
3e: 33 07 xor (%rdi),%eax