Unable to handle kernel paging request at virtual address dfff800000000021
KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f]
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
[dfff800000000021] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6857 Comm: syz.1.54 Not tainted 6.15.0-rc1-syzkaller-g2fe2b96c3818 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bcsp_recv+0x10c/0x1308 drivers/bluetooth/hci_bcsp.c:590
lr : bcsp_recv+0xc4/0x1308 drivers/bluetooth/hci_bcsp.c:589
sp : ffff8000a0897a60
x29: ffff8000a0897b60 x28: dfff800000000000 x27: 0000000000000178
x26: 000000000000002f x25: 0000000000000000 x24: 0000000000000110
x23: 0000000000000021 x22: 0000000000000108 x21: ffff0000f05205b8
x20: ffff8000a0897c40 x19: 0000000000000001 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000803c3924 x15: 0000000000000001
x14: 1ffff00014112f20 x13: 0000000000000aaa x12: 0000000000010aaa
x11: ffff80008848966c x10: ffff8000a0897b20 x9 : 0000000000000182
x8 : 000000000000002f x7 : ffff800088484e50 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 bcsp_recv+0x10c/0x1308 drivers/bluetooth/hci_bcsp.c:-1 (P)
 hci_uart_tty_receive+0x148/0x1e0 drivers/bluetooth/hci_ldisc.c:627
 tiocsti+0x258/0x324 drivers/tty/tty_io.c:2299
 tty_ioctl+0x35c/0xd8c drivers/tty/tty_io.c:2716
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:892
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: d343fd08 a903a7fb f90037e8 a904abf7 (387c6ae8) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d343fd08 	lsr	x8, x8, #3
   4:	a903a7fb 	stp	x27, x9, [sp, #56]
   8:	f90037e8 	str	x8, [sp, #104]
   c:	a904abf7 	stp	x23, x10, [sp, #72]
* 10:	387c6ae8 	ldrb	w8, [x23, x28] <-- trapping instruction