Unable to handle kernel paging request at virtual address dfff80000000004b
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff80000000004b] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 3888 Comm: kworker/1:2 Not tainted 6.15.0-rc5-syzkaller-gc32f8dc5aaf9 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events l2cap_info_timeout
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kasan_byte_accessible+0x10/0x20 mm/kasan/generic.c:199
lr : __kasan_check_byte+0x20/0x54 mm/kasan/common.c:556
sp : ffff8000a0997770
x29: ffff8000a0997770 x28: ffff80008f311000 x27: ffff0000d1c5db80
x26: ffff800089048c04 x25: 0000000000000000 x24: 0000000000000001
x23: 0000000000000000 x22: 0000000000000258 x21: 0000000000000258
x20: 0000000000000000 x19: ffff800089048c04 x18: 00000000ffffffff
x17: ffff800092f27000 x16: ffff80008adb410c x15: 0000000000000001
x14: 1fffe0001e33b421 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800092d26c00 x10: 0000000000000003 x9 : dfff800000000000
x8 : 000000000000004b x7 : ffff800083017468 x6 : ffff80008a057044
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : ffff800089048c04 x0 : 0000000000000258
Call trace:
 kasan_mem_to_shadow include/linux/kasan.h:64 [inline] (P)
 kasan_byte_accessible+0x10/0x20 mm/kasan/generic.c:199 (P)
 kasan_check_byte include/linux/kasan.h:399 [inline]
 lock_acquire+0xb0/0x2e0 kernel/locking/lockdep.c:5840
 lock_sock_nested+0x58/0x118 net/core/sock.c:3702
 lock_sock include/net/sock.h:1651 [inline]
 l2cap_sock_ready_cb+0x4c/0x130 net/bluetooth/l2cap_sock.c:1674
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1263 [inline]
 l2cap_conn_start+0x588/0xba0 net/bluetooth/l2cap_core.c:1511
 l2cap_info_timeout+0x78/0xb0 net/bluetooth/l2cap_core.c:1668
 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
Code: d503245f d343fc08 d2d00009 f2fbffe9 (38696908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d503245f 	bti	c
   4:	d343fc08 	lsr	x8, x0, #3
   8:	d2d00009 	mov	x9, #0x800000000000        	// #140737488355328
   c:	f2fbffe9 	movk	x9, #0xdfff, lsl #48
* 10:	38696908 	ldrb	w8, [x8, x9] <-- trapping instruction