Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 UID: 0 PID: 96 Comm: kworker/0:2 Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events l2cap_info_timeout
RIP: 0010:kasan_byte_accessible+0x12/0x30
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90001b8f7a8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff894e1558 RCX: 8829b74b255f2e00
RDX: 0000000000000000 RSI: ffffffff894e1558 RDI: 000000000000004b
RBP: ffffffff8a7a6325 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a7a62e0 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b14f91440 CR3: 000000003b492000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40
 lock_acquire+0x8d/0x360
 lock_sock_nested+0x48/0x100
 l2cap_sock_ready_cb+0x45/0x140
 l2cap_conn_start+0x76d/0xe50
 l2cap_info_timeout+0x68/0xa0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90001b8f7a8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff894e1558 RCX: 8829b74b255f2e00
RDX: 0000000000000000 RSI: ffffffff894e1558 RDI: 000000000000004b
RBP: ffffffff8a7a6325 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a7a62e0 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b14f91440 CR3: 000000003d61a000 CR4: 00000000000006f0
