Unable to handle kernel paging request at virtual address dfff800000000002
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
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
[dfff800000000002] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4530 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : do_sync+0x86c/0xa94 fs/gfs2/quota.c:986
lr : do_sync+0x848/0xa94 fs/gfs2/quota.c:985
sp : ffff800021227ac0
x29: ffff800021227c10 x28: ffff0000f4de35c0 x27: ffff80000a1debc4
x26: 00000000fffffffb x25: ffff700004244f64 x24: dfff800000000000
x23: 0000000000000000 x22: ffff0000cbe80100 x21: ffff0000cbe80100
x20: 0000000000000000 x19: 0000000000000000 x18: ffff800011abbcc0
x17: ffff80000a1dcf80 x16: ffff8000082d25ac x15: ffff8000088c98b4
x14: ffff8000088d0688 x13: ffff80000802a690 x12: 0000000000ff0100
x11: ff0080000a894400 x10: 0000000000000000 x9 : 5b0bb1211e496a00
x8 : 0000000000000002 x7 : ffff8000088d6f68 x6 : ffff8000088d48e4
x5 : ffff0000cdc52e18 x4 : ffff800021227760 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff800011abd7c0 x0 : 0000000000000010
Call trace:
 do_sync+0x86c/0xa94 fs/gfs2/quota.c:986
 gfs2_quota_sync+0x2e0/0x528 fs/gfs2/quota.c:1329
 quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
 gfs2_quotad+0x2d8/0x4fc fs/gfs2/quota.c:1566
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 979be98a f9400294 91004280 d343fc08 (38786908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	979be98a 	bl	0xfffffffffe6fa628
   4:	f9400294 	ldr	x20, [x20]
   8:	91004280 	add	x0, x20, #0x10
   c:	d343fc08 	lsr	x8, x0, #3
* 10:	38786908 	ldrb	w8, [x8, x24] <-- trapping instruction