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workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2353 at __queue_work+0xd83/0x10d0 kernel/workqueue.c:2352, CPU#0: dhcpcd-run-hook/18809
Modules linked in:
CPU: 0 UID: 0 PID: 18809 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__queue_work+0xd9f/0x10d0 kernel/workqueue.c:2352
Code: 49 81 c7 70 01 00 00 4c 8d 35 9d d8 ee 0e 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 0b 9c a9 00 49 8b 75 18 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 4c 89 e8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ef e8
RSP: 0018:ffffc90000007bc0 EFLAGS: 00010046
RAX: 1ffff1100530f14e RBX: dffffc0000000000 RCX: ffff88803184be80
RDX: ffff8880322e5970 RSI: ffffffff8ad62eb0 RDI: ffffffff907d16e0
RBP: 0000000000010000 R08: 0000000000000100 R09: 1ffffffff20f482f
R10: dffffc0000000000 R11: ffffffff818e4560 R12: 0000000000000008
R13: ffff888029878a58 R14: ffffffff907d16e0 R15: ffff8880322e5970
FS: 00007f9fd1042c80(0000) GS:ffff888124cce000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9fd12de7b8 CR3: 0000000050840000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers kernel/time/timer.c:2374 [inline]
__run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2386
run_timer_base kernel/time/timer.c:2395 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
handle_softirqs+0x226/0x860 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947
Code: ff ff ff e8 50 85 42 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 a2 f0 f1 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 bf 89 45 0a cc 48 8d 3d 97 4b da
RSP: 0018:ffffc90002e4fa90 EFLAGS: 00000296
RAX: 8a0a0908c5cae200 RBX: 0000000000000001 RCX: 8000000000000001
RDX: 00000000000b663d RSI: ffffffff8e69c835 RDI: ffffffff8c6da080
RBP: ffff88803184be80 R08: ffffffff822bf6a3 R09: 0000000000000000
R10: ffffc90002e4fce0 R11: fffff520005c9f9e R12: ffff8880b86423b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000246
local_trylock_acquire include/linux/local_lock_internal.h:53 [inline]
alloc_from_pcs mm/slub.c:4844 [inline]
slab_alloc_node mm/slub.c:4984 [inline]
kmem_cache_alloc_lru_noprof+0x16e/0x5f0 mm/slub.c:5029
__d_alloc+0x37/0x6f0 fs/dcache.c:1907
d_alloc_pseudo+0x21/0xc0 fs/dcache.c:2038
alloc_path_pseudo+0x107/0x220 fs/file_table.c:407
alloc_file_pseudo+0xa8/0x1e0 fs/file_table.c:423
create_pipe_files+0x325/0x7c0 fs/pipe.c:1025
__do_pipe_flags+0x46/0x1f0 fs/pipe.c:1071
do_pipe2+0xaa/0x190 fs/pipe.c:1119
__do_sys_pipe2 fs/pipe.c:1137 [inline]
__se_sys_pipe2 fs/pipe.c:1135 [inline]
__x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1135
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9fd11ffec9
Code: 07 31 c0 e9 49 ff ff ff 50 48 8d 3d a9 3a 0a 00 e8 ec 64 01 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 31 f6 b8 25 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 07 c3 66 0f 1f 44 00 00 48 8b 15 f9 be 0d 00
RSP: 002b:00007ffc5e875388 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 0000560701299b88 RCX: 00007f9fd11ffec9
RDX: 000056070128bc30 RSI: 0000000000000000 RDI: 00007ffc5e8753f0
RBP: 000056070128bc30 R08: 0000000000000000 R09: 0000000000000040
R10: 0000000000000060 R11: 0000000000000246 R12: 0000000000000084
R13: 000056070128bc30 R14: 0000000000000024 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 49 81 c7 70 01 00 00 add $0x170,%r15
7: 4c 8d 35 9d d8 ee 0e lea 0xeeed89d(%rip),%r14 # 0xeeed8ab
e: 48 89 f8 mov %rdi,%rax
11: 48 c1 e8 03 shr $0x3,%rax
15: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
19: 74 05 je 0x20
1b: e8 0b 9c a9 00 call 0xa99c2b
20: 49 8b 75 18 mov 0x18(%r13),%rsi
24: 4c 89 f7 mov %r14,%rdi
27: 4c 89 fa mov %r15,%rdx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 4c 89 e8 mov %r13,%rax
32: 48 c1 e8 03 shr $0x3,%rax
36: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
3a: 74 08 je 0x44
3c: 4c 89 ef mov %r13,%rdi
3f: e8 .byte 0xe8