BUG: kernel NULL pointer dereference, address: 0000000000000138
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 101b98067 P4D 101b98067 PUD 106baa067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 22 Comm: kworker/1:0 Not tainted 6.5.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: events l2cap_info_timeout
RIP: 0010:__lock_acquire.constprop.0+0x2f2/0x540 kernel/locking/lockdep.c:5016
Code: 0a 48 83 f8 ff 0f 85 a1 01 00 00 0f b7 45 20 66 25 ff 1f 66 89 44 24 16 0f b6 45 22 83 e0 03 88 44 24 10 e9 6d fe ff ff 89 f0 <48> 8b 44 c7 08 48 85 c0 0f 85 68 fd ff ff e9 39 fd ff ff e8 c6 8d
RSP: 0018:ffffc900000c3c98 EFLAGS: 00010097
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000130
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810267b680 R15: 0000000000000200
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000138 CR3: 0000000101b3b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5761 [inline]
 lock_acquire+0xab/0x180 kernel/locking/lockdep.c:5726
 lock_sock_nested+0x2d/0x70 net/core/sock.c:3504
 lock_sock include/net/sock.h:1716 [inline]
 l2cap_sock_ready_cb+0x17/0x60 net/bluetooth/l2cap_sock.c:1630
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1365 [inline]
 l2cap_conn_start+0x75/0x340 net/bluetooth/l2cap_core.c:1640
 process_one_work+0x297/0x4f0 kernel/workqueue.c:2600
 worker_thread+0x4e/0x330 kernel/workqueue.c:2751
 kthread+0xde/0x110 kernel/kthread.c:389
 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Modules linked in:
CR2: 0000000000000138
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire.constprop.0+0x2f2/0x540 kernel/locking/lockdep.c:5016
Code: 0a 48 83 f8 ff 0f 85 a1 01 00 00 0f b7 45 20 66 25 ff 1f 66 89 44 24 16 0f b6 45 22 83 e0 03 88 44 24 10 e9 6d fe ff ff 89 f0 <48> 8b 44 c7 08 48 85 c0 0f 85 68 fd ff ff e9 39 fd ff ff e8 c6 8d
RSP: 0018:ffffc900000c3c98 EFLAGS: 00010097
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000130
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810267b680 R15: 0000000000000200
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000138 CR3: 0000000101b3b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0a 48 83             	or     -0x7d(%rax),%cl
   3:	f8                   	clc
   4:	ff 0f                	decl   (%rdi)
   6:	85 a1 01 00 00 0f    	test   %esp,0xf000001(%rcx)
   c:	b7 45                	mov    $0x45,%bh
   e:	20 66 25             	and    %ah,0x25(%rsi)
  11:	ff 1f                	lcall  *(%rdi)
  13:	66 89 44 24 16       	mov    %ax,0x16(%rsp)
  18:	0f b6 45 22          	movzbl 0x22(%rbp),%eax
  1c:	83 e0 03             	and    $0x3,%eax
  1f:	88 44 24 10          	mov    %al,0x10(%rsp)
  23:	e9 6d fe ff ff       	jmp    0xfffffe95
  28:	89 f0                	mov    %esi,%eax
* 2a:	48 8b 44 c7 08       	mov    0x8(%rdi,%rax,8),%rax <-- trapping instruction
  2f:	48 85 c0             	test   %rax,%rax
  32:	0f 85 68 fd ff ff    	jne    0xfffffda0
  38:	e9 39 fd ff ff       	jmp    0xfffffd76
  3d:	e8                   	.byte 0xe8
  3e:	c6                   	(bad)
  3f:	8d                   	.byte 0x8d