------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2437 at __queue_work+0xdfc/0x1360 kernel/workqueue.c:2436, CPU#0: syz.0.0/5345
Modules linked in:
CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__queue_work+0xe1a/0x1360 kernel/workqueue.c:2436
Code: 28 78 01 00 00 4c 8d 35 24 12 32 10 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 d2 37 b3 00 49 8b 77 18 4c 89 f7 48 8b 54 24 28 <67> 48 0f b9 3a 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8
RSP: 0018:ffffc90000007be8 EFLAGS: 00010046
RAX: 1ffff11008af094e RBX: dffffc0000000000 RCX: ffff888013c5cb00
RDX: ffff88804321d178 RSI: ffffffff8af58230 RDI: ffffffff91c10090
RBP: 0000000000010000 R08: 0000000000000100 R09: 1ffffffff237c557
R10: dffffc0000000000 R11: ffffffff818ef7a0 R12: ffff88804321d1c0
R13: 0000000000000008 R14: ffffffff91c10090 R15: ffff888045784a58
FS:  00007fc6b00836c0(0000) GS:ffff88808a9fe000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f04e3649708 CR3: 0000000014318000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1749
 expire_timers kernel/time/timer.c:1795 [inline]
 __run_timers kernel/time/timer.c:2375 [inline]
 __run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2387
 run_timer_base kernel/time/timer.c:2396 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
 __do_softirq kernel/softirq.c:703 [inline]
 invoke_softirq kernel/softirq.c:542 [inline]
 __irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:finish_task_switch+0x413/0xc60 kernel/sched/core.c:5434
Code: 04 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 e7 47 73 0a e8 92 9a 3a 00 fb 4c 8b 65 c8 <49> 8d bc 24 18 17 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc9000e096f00 EFLAGS: 00000202
RAX: 00000000000002a7 RBX: ffff88801f83d3a0 RCX: 8000000000000001
RDX: 0000000000000006 RSI: ffffffff8e6add33 RDI: ffffffff8c8ebd80
RBP: ffffc9000e096f50 R08: ffffffff91be2abf R09: 1ffffffff237c557
R10: dffffc0000000000 R11: fffffbfff237c558 R12: ffff888013c5cb00
R13: ffff88801f83d368 R14: dffffc0000000000 R15: 1ffff11003f07a74
 context_switch kernel/sched/core.c:5586 [inline]
 __schedule+0x17e5/0x5830 kernel/sched/core.c:7382
 preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7561
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:201 [inline]
 _raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:213
 spin_unlock include/linux/spinlock.h:401 [inline]
 insert_inode_locked+0x433/0x4e0 fs/inode.c:-1
 f2fs_new_inode+0x2d9/0xfd0 fs/f2fs/namei.c:270
 f2fs_mkdir+0x212/0x640 fs/f2fs/namei.c:770
 vfs_mkdir+0x411/0x660 fs/namei.c:5428
 ovl_do_mkdir fs/overlayfs/overlayfs.h:261 [inline]
 ovl_workdir_create+0x4b8/0x970 fs/overlayfs/super.c:366
 ovl_make_workdir fs/overlayfs/super.c:718 [inline]
 ovl_get_workdir+0x339/0x1980 fs/overlayfs/super.c:876
 ovl_fill_super_creds fs/overlayfs/super.c:1489 [inline]
 ovl_fill_super+0x1767/0x4570 fs/overlayfs/super.c:1601
 get_tree_super fs/super.c:1360 [inline]
 get_tree_nodev+0xbe/0x150 fs/super.c:1380
 vfs_get_tree+0x92/0x2a0 fs/super.c:1881
 fc_mount fs/namespace.c:1282 [inline]
 do_new_mount_fc fs/namespace.c:3910 [inline]
 do_new_mount+0x325/0xb00 fs/namespace.c:3986
 do_mount fs/namespace.c:4350 [inline]
 __do_sys_mount fs/namespace.c:4565 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4542
 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: 0033:0x7fc6af19fb19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc6b0082fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc6af426090 RCX: 00007fc6af19fb19
RDX: 00002000000002c0 RSI: 0000200000000280 RDI: 0000000000000000
RBP: 00007fc6af237b70 R08: 0000200000005a40 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc6af426128 R14: 00007fc6af426090 R15: 00007ffdab670ea8
 </TASK>
----------------
Code disassembly (best guess):
   0:	28 78 01             	sub    %bh,0x1(%rax)
   3:	00 00                	add    %al,(%rax)
   5:	4c 8d 35 24 12 32 10 	lea    0x10321224(%rip),%r14        # 0x10321230
   c:	48 89 f8             	mov    %rdi,%rax
   f:	48 c1 e8 03          	shr    $0x3,%rax
  13:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  17:	74 05                	je     0x1e
  19:	e8 d2 37 b3 00       	call   0xb337f0
  1e:	49 8b 77 18          	mov    0x18(%r15),%rsi
  22:	4c 89 f7             	mov    %r14,%rdi
  25:	48 8b 54 24 28       	mov    0x28(%rsp),%rdx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	4c 89 f8             	mov    %r15,%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 ff             	mov    %r15,%rdi
  3f:	e8                   	.byte 0xe8