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workqueue: cannot queue hci_cmd_timeout on wq hci2
WARNING: kernel/workqueue.c:2251 at __queue_work+0xcbb/0x10f0 kernel/workqueue.c:2250, CPU#2: syz-executor/17996
Modules linked in:
CPU: 2 UID: 0 PID: 17996 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__queue_work+0xcbf/0x10f0 kernel/workqueue.c:2250
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 15 04 00 00 48 8d 3d d5 cd ec 0e 48 8b 75 18 <67> 48 0f b9 3a e9 77 f7 ff ff e8 22 6a 38 00 90 0f 0b 90 e9 ff f5
RSP: 0000:ffffc90000538bf0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff11002724951
RDX: ffff88802ac67178 RSI: ffffffff8a6f7010 RDI: ffffffff90baf360
RBP: ffff888013924a70 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: ffff88802ac67000
R13: 1ffff920000a718f R14: ffffffff81ce3690 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880975bf000(0063) knlGS:0000000057ca5480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000057ca5470 CR3: 000000002904f000 CR4: 0000000000352ef0
DR0: 0000000000000004 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x19a/0x590 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers+0x570/0xac0 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+0x1ea/0x910 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_write_unlock_irq include/linux/rwlock_api_smp.h:300 [inline]
RIP: 0010:_raw_write_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:358
Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 ca e6 67 f6 48 89 df e8 72 3c 68 f6 e8 9d 5f 93 f6 fb bf 01 00 00 00 <e8> c2 7d 58 f6 65 8b 05 2b f8 6a 08 85 c0 74 06 5b e9 91 41 00 00
RSP: 0000:ffffc9000649f8f0 EFLAGS: 00000202
RAX: 00000000000eb843 RBX: ffffffff8e20c080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8dc4df07 RDI: 0000000000000001
RBP: ffff8880227100e0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888022710000 R14: dffffc0000000000 R15: ffff88802a274a00
 release_task+0xd37/0x1ab0 kernel/exit.c:289
 wait_task_zombie kernel/exit.c:1274 [inline]
 wait_consider_task+0x1791/0x3e00 kernel/exit.c:1501
 do_wait_thread kernel/exit.c:1564 [inline]
 __do_wait+0x218/0x8b0 kernel/exit.c:1682
 do_wait+0x1ec/0x540 kernel/exit.c:1716
 kernel_wait4+0x16d/0x280 kernel/exit.c:1875
 __do_compat_sys_wait4+0x15b/0x170 kernel/exit.c:1933
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 do_int80_emulation+0x141/0x6b0 arch/x86/entry/syscall_32.c:172
 asm_int80_emulation+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
RIP: 0023:0xf71d572b
Code: 57 56 53 8b 44 24 14 f6 00 08 75 23 8b 44 24 18 8b 5c 24 1c 8b 4c 24 20 8b 54 24 24 8b 74 24 28 8b 7c 24 2c 8b 6c 24 30 cd 80 <5b> 5e 5f 5d c3 5b 5e 5f 5d e9 f7 a1 ff ff 66 90 66 90 66 90 90 53
RSP: 002b:00000000ffb3571c EFLAGS: 00000246 ORIG_RAX: 0000000000000072
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00000000ffb358b8
RDX: 0000000040000001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
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 15 04 00 00    	jne    0x434
  1f:	48 8d 3d d5 cd ec 0e 	lea    0xeeccdd5(%rip),%rdi        # 0xeeccdfb
  26:	48 8b 75 18          	mov    0x18(%rbp),%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 77 f7 ff ff       	jmp    0xfffff7ab
  34:	e8 22 6a 38 00       	call   0x386a5b
  39:	90                   	nop
  3a:	0f 0b                	ud2
  3c:	90                   	nop
  3d:	e9                   	.byte 0xe9
  3e:	ff f5                	push   %rbp