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workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: kernel/workqueue.c:2251 at 0x0, CPU#1: kworker/u8:12/4785
Modules linked in:
CPU: 1 UID: 0 PID: 4785 Comm: kworker/u8:12 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: kvfree_rcu_reclaim kfree_rcu_work
RIP: 0010:__queue_work+0xca1/0x10e0 kernel/workqueue.c:2250
Code: 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 0c 04 00 00 48 8d 3d c3 0c 05 0f 48 8b 75 18 <67> 48 0f b9 3a e9 90 f7 ff ff e8 00 de 39 00 90 0f 0b 90 e9 15 f6
RSP: 0018:ffffc90000a08be8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff11009294151
RDX: ffff88807ae97178 RSI: ffffffff8a57f6c0 RDI: ffffffff90893350
RBP: ffff8880494a0a70 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 00000000ffffffff R12: 1ffff9200014118f
R13: ffffffff818437d0 R14: 0000000000000100 R15: ffff88807ae97000
FS: 0000000000000000(0000) GS:ffff888124a7e000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2a56a6 CR3: 00000000738ef000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x19a/0x5a0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers+0x569/0xae0 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+0x219/0x8b0 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:1056 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 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+0x62/0x330 kernel/locking/lockdep.c:5872
Code: cf 10 12 83 f8 07 0f 87 a2 02 00 00 89 c0 48 0f a3 05 e2 f4 ec 0e 0f 82 74 02 00 00 8b 35 5a 25 ed 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 f9 ce 10 12 0f 85 ad 02 00 00 48 83 c4
RSP: 0018:ffffc9000e8475d8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8e3c92c0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8da8836f RDI: ffffffff8bf21080
RBP: 0000000000000002 R08: 00000000877e37f6 R09: 00000000a17b339f
R10: ffff888035500b30 R11: 00000000fa17b339 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:867 [inline]
class_rcu_constructor include/linux/rcupdate.h:1195 [inline]
unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
__kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
kasan_save_free_info mm/kasan/kasan.h:406 [inline]
poison_slab_object mm/kasan/common.c:252 [inline]
__kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
kasan_slab_free include/linux/kasan.h:234 [inline]
slab_free_hook mm/slub.c:2540 [inline]
slab_free_freelist_hook mm/slub.c:2569 [inline]
slab_free_bulk mm/slub.c:6696 [inline]
kmem_cache_free_bulk mm/slub.c:7376 [inline]
kmem_cache_free_bulk+0x2bf/0x680 mm/slub.c:7355
kfree_bulk include/linux/slab.h:830 [inline]
kvfree_rcu_bulk+0x1b7/0x1e0 mm/slab_common.c:1523
kfree_rcu_work+0x124/0x1a0 mm/slab_common.c:1601
process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257
process_scheduled_works kernel/workqueue.c:3340 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
----------------
Code disassembly (best guess):
0: 78 01 js 0x3
2: 00 00 add %al,(%rax)
4: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
b: fc ff df
e: 48 89 f9 mov %rdi,%rcx
11: 48 c1 e9 03 shr $0x3,%rcx
15: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1)
19: 0f 85 0c 04 00 00 jne 0x42b
1f: 48 8d 3d c3 0c 05 0f lea 0xf050cc3(%rip),%rdi # 0xf050ce9
26: 48 8b 75 18 mov 0x18(%rbp),%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: e9 90 f7 ff ff jmp 0xfffff7c4
34: e8 00 de 39 00 call 0x39de39
39: 90 nop
3a: 0f 0b ud2
3c: 90 nop
3d: e9 .byte 0xe9
3e: 15 .byte 0x15
3f: f6 .byte 0xf6