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workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: kernel/workqueue.c:2270 at __queue_work+0xd08/0x1150 kernel/workqueue.c:2269, CPU#0: syz-executor/7059
Modules linked in:
CPU: 0 UID: 0 PID: 7059 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__queue_work+0xd0c/0x1150 kernel/workqueue.c:2269
Code: 00 00 00 fc ff df 49 8d 94 24 78 01 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 04 04 00 00 48 8d 3d 78 b6 0c 0f 48 8b 75 18 <67> 48 0f b9 3a e9 2a f7 ff ff e8 35 e9 38 00 90 0f 0b 90 e9 b2 f5
RSP: 0018:ffffc90000007be8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff11012c52951
RDX: ffff88802b5f1978 RSI: ffffffff8a842000 RDI: ffffffff90dcae70
RBP: ffff888096294a70 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: ffff88802b5f1800
R13: 1ffff92000000f8f R14: ffffffff81d00910 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff88812433f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005564a9eca300 CR3: 000000002332f000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x19a/0x670 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers+0x570/0xb30 kernel/time/timer.c:2373
__run_timer_base kernel/time/timer.c:2385 [inline]
__run_timer_base kernel/time/timer.c:2377 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2394
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2404
handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xef/0x150 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5872
Code: 05 bb 06 29 12 83 f8 07 0f 87 f0 00 00 00 48 0f a3 05 86 a3 f4 0e 0f 82 c2 02 00 00 8b 35 6e d7 f4 0e 85 f6 0f 85 dd 00 00 00 <48> 8b 44 24 30 65 48 2b 05 5d 06 29 12 0f 85 02 03 00 00 48 83 c4
RSP: 0018:ffffc900046c78d8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8de52789 RDI: ffffffff8c1b1220
RBP: ffff88802b5f1948 R08: 00000000002735c8 R09: ffffffff97116918
R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
touch_wq_lockdep_map+0xad/0x1c0 kernel/workqueue.c:3991
__flush_workqueue+0x131/0x1200 kernel/workqueue.c:4033
drain_workqueue+0x175/0x3b0 kernel/workqueue.c:4197
hci_dev_close_sync+0x349/0x1240 net/bluetooth/hci_sync.c:5344
hci_dev_do_close+0x2e/0xb0 net/bluetooth/hci_core.c:502
hci_unregister_dev+0x227/0x670 net/bluetooth/hci_core.c:2716
vhci_release+0x17d/0x230 drivers/bluetooth/hci_vhci.c:690
__fput+0x3ff/0xb40 fs/file_table.c:469
task_work_run+0x150/0x240 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x8b8/0x2b60 kernel/exit.c:976
do_group_exit+0xd5/0x2a0 kernel/exit.c:1118
__do_sys_exit_group kernel/exit.c:1129 [inline]
__se_sys_exit_group kernel/exit.c:1127 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1127
x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb28f9c799
Code: Unable to access opcode bytes at 0x7feb28f9c76f.
RSP: 002b:00007fffb16f0168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007feb2903312a RCX: 00007feb28f9c799
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007feb29008da8 R08: 0000000000000000 R09: 000000000000002e
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000002e R14: 0000000000000025 R15: 00007fffb16f02a2
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 fc add %bh,%ah
4: ff lcall (bad)
5: df 49 8d fisttps -0x73(%rcx)
8: 94 xchg %eax,%esp
9: 24 78 and $0x78,%al
b: 01 00 add %eax,(%rax)
d: 00 48 89 add %cl,-0x77(%rax)
10: f9 stc
11: 48 c1 e9 03 shr $0x3,%rcx
15: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1)
19: 0f 85 04 04 00 00 jne 0x423
1f: 48 8d 3d 78 b6 0c 0f lea 0xf0cb678(%rip),%rdi # 0xf0cb69e
26: 48 8b 75 18 mov 0x18(%rbp),%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: e9 2a f7 ff ff jmp 0xfffff75e
34: e8 35 e9 38 00 call 0x38e96e
39: 90 nop
3a: 0f 0b ud2
3c: 90 nop
3d: e9 .byte 0xe9
3e: b2 f5 mov $0xf5,%dl