UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
Bluetooth: MGMT ver 1.23
------------[ cut here ]------------
workqueue: cannot queue hci_cmd_work on wq hci0
WARNING: kernel/workqueue.c:2298 at __queue_work+0xd67/0x1010 kernel/workqueue.c:2296, CPU#0: syz.0.700/8697
Modules linked in:
CPU: 0 UID: 0 PID: 8697 Comm: syz.0.700 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__queue_work+0xd87/0x1010 kernel/workqueue.c:2296
Code: 01 00 00 4c 8d 35 e9 3c 00 0e 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 f3 10 a1 00 49 8b 75 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc
RSP: 0018:ffffc900041d7780 EFLAGS: 00010046
RAX: 1ffff1100589f186 RBX: 0000000000000008 RCX: 0000000000080000
RDX: ffff8880611ee968 RSI: ffffffff8a1ae420 RDI: ffffffff8f8d6ee0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100589f184 R12: dffffc0000000000
R13: ffff88802c4f8c30 R14: ffffffff8f8d6ee0 R15: ffff8880611ee968
FS:  00007fcd7d4466c0(0000) GS:ffff888125f25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcd7d404d58 CR3: 0000000020b34000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 queue_work_on+0x106/0x1d0 kernel/workqueue.c:2432
 queue_work include/linux/workqueue.h:698 [inline]
 hci_send_cmd+0xb7/0x1a0 net/bluetooth/hci_core.c:3111
 set_link_security+0x5aa/0x770 net/bluetooth/mgmt.c:1934
 hci_mgmt_cmd+0xa14/0xfa0 net/bluetooth/hci_sock.c:1721
 hci_sock_sendmsg+0x6dd/0xf40 net/bluetooth/hci_sock.c:1841
 sock_sendmsg_nosec+0x112/0x150 net/socket.c:797
 __sock_sendmsg net/socket.c:812 [inline]
 sock_write_iter+0x308/0x410 net/socket.c:1269
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x629/0xba0 fs/read_write.c:688
 ksys_write+0x156/0x270 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcd7f1ecdd9
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:00007fcd7d446028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcd7f465fa0 RCX: 00007fcd7f1ecdd9
RDX: 0000000000000007 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007fcd7f282d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcd7f466038 R14: 00007fcd7f465fa0 R15: 00007fffe2811848
 </TASK>
----------------
Code disassembly (best guess):
   0:	01 00                	add    %eax,(%rax)
   2:	00 4c 8d 35          	add    %cl,0x35(%rbp,%rcx,4)
   6:	e9 3c 00 0e 4c       	jmp    0x4c0e0047
   b:	89 e8                	mov    %ebp,%eax
   d:	48 c1 e8 03          	shr    $0x3,%rax
  11:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  16:	74 08                	je     0x20
  18:	4c 89 ef             	mov    %r13,%rdi
  1b:	e8 f3 10 a1 00       	call   0xa11113
  20:	49 8b 75 00          	mov    0x0(%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:	48 83 c4 58          	add    $0x58,%rsp
  33:	5b                   	pop    %rbx
  34:	41 5c                	pop    %r12
  36:	41 5d                	pop    %r13
  38:	41 5e                	pop    %r14
  3a:	41 5f                	pop    %r15
  3c:	5d                   	pop    %rbp
  3d:	c3                   	ret
  3e:	cc                   	int3
  3f:	cc                   	int3