gfs2_glock_nq+0x8bc/0x11c4 fs/gfs2/glock.c:1596
 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline]
 do_sync+0x41c/0xaec fs/gfs2/quota.c:927
 gfs2_quota_sync+0x2cc/0x500 fs/gfs2/quota.c:1329
 quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
 gfs2_quotad+0x2d8/0x500 fs/gfs2/quota.c:1566
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
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: 1 PID: 4643 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+0x8ac/0xaec fs/gfs2/quota.c:986
lr : do_sync+0x888/0xaec fs/gfs2/quota.c:985
sp : ffff8000219f7ae0
x29: ffff8000219f7c20 x28: 0000000000000001 x27: ffff80000a219444
x26: 00000000fffffffb x25: ffff0000f60f35c0 x24: dfff800000000000
x23: ffff70000433ef68 x22: ffff0000c0b6cd00 x21: ffff0000dca6a800
x20: 0000000000000000 x19: ffff0000c0b6cd00 x18: ffff800011b8bf60
x17: ffff80000a2177d8 x16: ffff8000082d9364 x15: 0000000000000000
x14: 00000000ffff8000 x13: 0000000053cb3fc8 x12: 0000000000ff0100
x11: ff0080000a8d9d70 x10: 0000000000000000 x9 : 99ed1f35c588fd00
x8 : 0000000000000002 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff800011b8da80 x0 : 0000000000000010
Call trace:
 do_sync+0x8ac/0xaec fs/gfs2/quota.c:986
 gfs2_quota_sync+0x2cc/0x500 fs/gfs2/quota.c:1329
 quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
 gfs2_quotad+0x2d8/0x500 fs/gfs2/quota.c:1566
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 979b381f f9400294 91004280 d343fc08 (38786908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	979b381f 	bl	0xfffffffffe6ce07c
   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