Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 UID: 0 PID: 957 Comm: kworker/0:2 Not tainted 6.12.0-rc6-syzkaller-00272-gda4373fbcf00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events l2cap_info_timeout
RIP: 0010:__lock_acquire+0x104/0x8070 kernel/locking/lockdep.c:5065
Code: 60 0f 85 79 64 00 00 c7 44 24 28 00 00 00 00 83 3d 0c 5d 41 0e 00 0f 84 e8 63 00 00 89 9c 24 b8 00 00 00 4c 89 e8 48 c1 e8 03 <42> 80 3c 00 00 74 12 4c 89 ef e8 7d db 8d 00 49 b8 00 00 00 00 00
RSP: 0018:ffffc90003b3f560 EFLAGS: 00010006
RAX: 000000000000004b RBX: 0000000000000000 RCX: 1ffff92000767ed0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000258
RBP: ffffc90003b3f828 R08: dffffc0000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f61e56 R12: 0000000000000000
R13: 0000000000000258 R14: ffff888025910000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc44b267d60 CR3: 000000007e12a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1e9/0x540 kernel/locking/lockdep.c:5825
 lock_sock_nested+0x44/0x100 net/core/sock.c:3611
 lock_sock include/net/sock.h:1611 [inline]
 l2cap_sock_ready_cb+0x43/0x130 net/bluetooth/l2cap_sock.c:1660
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1256 [inline]
 l2cap_conn_start+0x8df/0x10b0 net/bluetooth/l2cap_core.c:1506
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa5f/0x1830 kernel/workqueue.c:3310
 worker_thread+0xa27/0xf70 kernel/workqueue.c:3391
 kthread+0x2ec/0x380 kernel/kthread.c:389
 ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x104/0x8070 kernel/locking/lockdep.c:5065
Code: 60 0f 85 79 64 00 00 c7 44 24 28 00 00 00 00 83 3d 0c 5d 41 0e 00 0f 84 e8 63 00 00 89 9c 24 b8 00 00 00 4c 89 e8 48 c1 e8 03 <42> 80 3c 00 00 74 12 4c 89 ef e8 7d db 8d 00 49 b8 00 00 00 00 00
RSP: 0018:ffffc90003b3f560 EFLAGS: 00010006
RAX: 000000000000004b RBX: 0000000000000000 RCX: 1ffff92000767ed0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000258
RBP: ffffc90003b3f828 R08: dffffc0000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f61e56 R12: 0000000000000000
R13: 0000000000000258 R14: ffff888025910000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc44b267d60 CR3: 000000007e12a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	0f 85 79 64 00 00    	jne    0x647f
   6:	c7 44 24 28 00 00 00 	movl   $0x0,0x28(%rsp)
   d:	00
   e:	83 3d 0c 5d 41 0e 00 	cmpl   $0x0,0xe415d0c(%rip)        # 0xe415d21
  15:	0f 84 e8 63 00 00    	je     0x6403
  1b:	89 9c 24 b8 00 00 00 	mov    %ebx,0xb8(%rsp)
  22:	4c 89 e8             	mov    %r13,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 00 00       	cmpb   $0x0,(%rax,%r8,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ef             	mov    %r13,%rdi
  33:	e8 7d db 8d 00       	call   0x8ddbb5
  38:	49                   	rex.WB
  39:	b8 00 00 00 00       	mov    $0x0,%eax