syzbot

Unable to handle kernel paging request at virtual address dfff800000000024
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000024] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4078 Comm: kworker/1:7 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events l2cap_info_timeout
pstate: 804010c5 (Nzcv daIF +PAN -UAO -TCO -DIT +SSBS BTYPE=--)
pc : __lock_acquire+0x104/0x7638 kernel/locking/lockdep.c:4882
lr : lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
sp : ffff80001d497480
x29: ffff80001d497720 x28: 1ffff00002928069 x27: 0000000000000001
x26: ffff800010d4063c x25: ffff700003a92eb4 x24: 0000000000000000
x23: 0000000000000000 x22: ffff0000ce8fd1c0 x21: 0000000000000000
x20: 0000000000000000 x19: 0000000000000120 x18: ffff80001d497300
x17: 0000000000000000 x16: ffff800011996984 x15: 00000000000229b2
x14: ffff800016f7d500 x13: ffff80001d4975a0 x12: dfff800000000000
x11: ffff8000082f0050 x10: ffff80001494034c x9 : 00000000000000f3
x8 : 0000000000000024 x7 : ffff800010d4063c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000120
Call trace:
 __lock_acquire+0x104/0x7638 kernel/locking/lockdep.c:4882
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 lock_sock_nested+0xec/0x1ec net/core/sock.c:3250
 lock_sock include/net/sock.h:1668 [inline]
 l2cap_sock_ready_cb+0x4c/0x130 net/bluetooth/l2cap_sock.c:1648
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1382 [inline]
 l2cap_conn_start+0x668/0xd28 net/bluetooth/l2cap_core.c:1640
 l2cap_info_timeout+0x68/0xb8 net/bluetooth/l2cap_core.c:1807
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Code: 90063788 b94ee108 34000208 d343fe68 (386c6908) 
---[ end trace 25b037eda3a9557a ]---
----------------
Code disassembly (best guess):
   0:	90063788 	adrp	x8, 0xc6f0000
   4:	b94ee108 	ldr	w8, [x8, #3808]
   8:	34000208 	cbz	w8, 0x48
   c:	d343fe68 	lsr	x8, x19, #3
* 10:	386c6908 	ldrb	w8, [x8, x12] <-- trapping instruction