Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
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
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 5546 Comm: syz.3.451 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: a2400005 (NzCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : hidpp_match_answer drivers/hid/hid-logitech-hidpp.c:402 [inline]
pc : hidpp_raw_hidpp_event+0x1a0c/0x285c drivers/hid/hid-logitech-hidpp.c:3637
lr : hidpp_raw_hidpp_event+0xa8/0x285c drivers/hid/hid-logitech-hidpp.c:3632
sp : ffff8000211e7860
x29: ffff8000211e7900 x28: dfff800000000000 x27: ffff70000423cf14
x26: dfff800000000000 x25: 1fffe0001a93e336 x24: 0000000000000000
x23: 0000000000000002 x22: 0000000000000000 x21: ffff0000d98700b8
x20: ffff0000f5702080 x19: ffff0000d98700b6 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082dd25c x15: 0000000000000002
x14: 0000000000000001 x13: 1fffe0001eae0412 x12: 0000000000000000
x11: 0000000000000000 x10: ffff60001eae0413 x9 : dfff800000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff8000187dda08 x4 : 0000000000000008 x3 : ffff8000082d36dc
x2 : 0000000000000000 x1 : 0000000000000008 x0 : 0000000000000001
Call trace:
 hidpp_match_answer drivers/hid/hid-logitech-hidpp.c:402 [inline]
 hidpp_raw_hidpp_event+0x1a0c/0x285c drivers/hid/hid-logitech-hidpp.c:3637
 hidpp_raw_event+0x12c/0x1294 drivers/hid/hid-logitech-hidpp.c:-1
 hid_input_report+0x3a0/0x49c drivers/hid/hid-core.c:2129
 uhid_dev_input2+0xac/0x134 drivers/hid/uhid.c:611
 uhid_char_write+0x404/0xa1c drivers/hid/uhid.c:769
 vfs_write+0x2a8/0x7c8 fs/read_write.c:582
 ksys_write+0x12c/0x228 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 350069e8 91000ad7 394002b8 d343fee8 (38fc6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	350069e8 	cbnz	w8, 0xd3c
   4:	91000ad7 	add	x23, x22, #0x2
   8:	394002b8 	ldrb	w24, [x21]
   c:	d343fee8 	lsr	x8, x23, #3
* 10:	38fc6908 	ldrsb	w8, [x8, x28] <-- trapping instruction