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workqueue: cannot queue hci_cmd_timeout on wq hci2
WARNING: CPU: 0 PID: 2949 at kernel/workqueue.c:2256 __queue_work+0xd38/0xfb0 kernel/workqueue.c:2254
Modules linked in:
CPU: 0 UID: 0 PID: 2949 Comm: kworker/u9:4 Not tainted 6.16.0-syzkaller-g0e260fc798bf #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: hci2 wq_barrier_func
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2254
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 d3 e4 98 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 60 dd 89 8b 4c 89 fa e8 c9 3a f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 6a 90 35 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90000007b10 EFLAGS: 00010046
RAX: 8e609ec9b943b700 RBX: 0000000000000100 RCX: ffff88802d110000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff1100673a938 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: dffffc0000000000
R13: ffff888080b34988 R14: 0000000000000008 R15: ffff8880339d4978
FS: 0000000000000000(0000) GS:ffff888125c2a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31911ff8 CR3: 0000000056bb6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
call_timer_fn+0x17b/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:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 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+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 cb 45 4d f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 53 04 16 f6 65 8b 05 1c 6a 25 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000418f9e0 EFLAGS: 00000206
RAX: 8e609ec9b943b700 RBX: 0000000000000a02 RCX: 8e609ec9b943b700
RDX: 0000000000000006 RSI: ffffffff8d9b15f8 RDI: 0000000000000001
RBP: ffffc9000418fa70 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: dffffc0000000000
R13: ffff88807e157e18 R14: ffffc9000bed7790 R15: 1ffff92000831f3c
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
kthread+0x711/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 74 05 je 0x7
2: e8 cb 45 4d f6 call 0xf64d45d2
7: 48 c7 44 24 20 00 00 movq $0x0,0x20(%rsp)
e: 00 00
10: 9c pushf
11: 8f 44 24 20 pop 0x20(%rsp)
15: f6 44 24 21 02 testb $0x2,0x21(%rsp)
1a: 75 4f jne 0x6b
1c: f7 c3 00 02 00 00 test $0x200,%ebx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 53 04 16 f6 call 0xf6160482 <-- trapping instruction
2f: 65 8b 05 1c 6a 25 07 mov %gs:0x7256a1c(%rip),%eax # 0x7256a52
36: 85 c0 test %eax,%eax
38: 74 40 je 0x7a
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss