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workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: CPU: 0 PID: 12376 at kernel/workqueue.c:2257 __queue_work+0xd03/0x1160 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 12376 Comm: kworker/u8:13 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: netns cleanup_net
RIP: 0010:__queue_work+0xd03/0x1160 kernel/workqueue.c:2256
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4b 04 00 00 48 8b 75 18 4c 89 fa 48 c7 c7 20 27 8c 8b e8 1e 15 f7 ff 90 <0f> 0b 90 90 e9 2f f7 ff ff e8 af e1 38 00 90 0f 0b 90 e9 b4 f5 ff
RSP: 0018:ffffc90000007be8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817b1cd8
RDX: ffff88803626c900 RSI: ffffffff817b1ce5 RDI: 0000000000000001
RBP: ffff88807b3ac978 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000009ec78 R12: 1ffff92000000f8f
R13: 0000000000000100 R14: ffffffff81841780 R15: ffff88803d4ee178
FS: 0000000000000000(0000) GS:ffff888124a05000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31116ff8 CR3: 00000000440cf000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x19a/0x620 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers+0x569/0x960 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/0x40 kernel/time/timer.c:2404
handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x109/0x170 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+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1052
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lockdep_unregister_key+0xe9/0x140 kernel/locking/lockdep.c:6616
Code: 48 89 ef e8 b9 e5 ff ff 48 83 2d 39 11 29 14 01 89 c3 e8 da ee ff ff 9c 58 f6 c4 02 75 52 41 f7 c4 00 02 00 00 74 01 fb 84 db <75> 1b 5b 5d 41 5c e9 3c 79 0a 00 8b 05 ba e5 e9 0e 31 db 85 c0 74
RSP: 0018:ffffc9000465f8d8 EFLAGS: 00000202
RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8db1c2d2 RDI: ffffffff8bf07440
RBP: ffffffff97287a88 R08: 000000000003a125 R09: ffffffff95c8bc6a
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000246
R13: ffff888023688000 R14: ffff8880236884c8 R15: 0000000000000001
__qdisc_destroy+0x11a/0x4d0 net/sched/sch_generic.c:1086
qdisc_put+0xab/0xe0 net/sched/sch_generic.c:1112
dev_shutdown+0x1d0/0x430 net/sched/sch_generic.c:1500
unregister_netdevice_many_notify+0xb12/0x25c0 net/core/dev.c:12272
ops_exit_rtnl_list net/core/net_namespace.c:187 [inline]
ops_undo_list+0x8fc/0xab0 net/core/net_namespace.c:248
cleanup_net+0x41b/0x8b0 net/core/net_namespace.c:695
process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
process_scheduled_works kernel/workqueue.c:3346 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 48 89 ef mov %rbp,%rdi
3: e8 b9 e5 ff ff call 0xffffe5c1
8: 48 83 2d 39 11 29 14 subq $0x1,0x14291139(%rip) # 0x14291149
f: 01
10: 89 c3 mov %eax,%ebx
12: e8 da ee ff ff call 0xffffeef1
17: 9c pushf
18: 58 pop %rax
19: f6 c4 02 test $0x2,%ah
1c: 75 52 jne 0x70
1e: 41 f7 c4 00 02 00 00 test $0x200,%r12d
25: 74 01 je 0x28
27: fb sti
28: 84 db test %bl,%bl
* 2a: 75 1b jne 0x47 <-- trapping instruction
2c: 5b pop %rbx
2d: 5d pop %rbp
2e: 41 5c pop %r12
30: e9 3c 79 0a 00 jmp 0xa7971
35: 8b 05 ba e5 e9 0e mov 0xee9e5ba(%rip),%eax # 0xee9e5f5
3b: 31 db xor %ebx,%ebx
3d: 85 c0 test %eax,%eax
3f: 74 .byte 0x74