Unable to handle kernel NULL pointer dereference at virtual address 0000000000000aa8
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
user pgtable: 4k pages, 48-bit VAs, pgdp=000000015af3c000
[0000000000000aa8] pgd=080000015acd0003, p4d=080000015acd0003, pud=080000015a931003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 5041 Comm: syz-executor.1 Not tainted 6.1.0-rc4-syzkaller-31872-g1621b6eaebf7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mem_cgroup_track_foreign_dirty_slowpath+0x3c/0x1dc mm/memcontrol.c:4655
lr : mem_cgroup_track_foreign_dirty_slowpath+0x38/0x1dc mm/memcontrol.c:4646
sp : ffff80001400ba80
x29: ffff80001400ba80 x28: ffff00011afc8000 x27: 0c00000000000001
x26: 0000000000000001 x25: 0000000000000011 x24: 0000000000000100
x23: ffff80000d2c9000 x22: 00000000ffffc54e x21: fffffc0004804280
x20: ffff0000c41d9060 x19: 0000000000000000 x18: 00000000000000c0
x17: ffff80000dcdc198 x16: ffff80000db1a158 x15: ffff00011afc8000
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff00011afc8000
x11: ff808000095f1718 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c41d9000 x7 : ffff800008572d58 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000010 x1 : ffff80000caf0858 x0 : 0000000000000001
Call trace:
 mem_cgroup_track_foreign_dirty_slowpath+0x3c/0x1dc
 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1662 [inline]
 folio_account_dirtied+0x3a8/0x650 mm/page-writeback.c:2576
 __folio_mark_dirty+0xbc/0x180 mm/page-writeback.c:2616
 block_dirty_folio+0x11c/0x210 fs/buffer.c:640
 folio_mark_dirty+0xbc/0x218 mm/page-writeback.c:2749
 filemap_page_mkwrite+0x26c/0x5ec mm/filemap.c:3433
 do_page_mkwrite+0x74/0x288 mm/memory.c:2978
 wp_page_shared+0x8c/0x364 mm/memory.c:3324
 do_wp_page+0x794/0xd10 mm/memory.c:3474
 handle_pte_fault mm/memory.c:4973 [inline]
 __handle_mm_fault mm/memory.c:5097 [inline]
 handle_mm_fault+0x880/0xa48 mm/memory.c:5218
 __do_page_fault arch/arm64/mm/fault.c:506 [inline]
 do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:606
 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:825
 el0_da+0x70/0x16c arch/arm64/kernel/entry-common.c:515
 el0t_64_sync_handler+0xcc/0xf0 arch/arm64/kernel/entry-common.c:658
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Code: aa1503e0 aa1403e1 9400006a f9400288 (f9455669) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1503e0 	mov	x0, x21
   4:	aa1403e1 	mov	x1, x20
   8:	9400006a 	bl	0x1b0
   c:	f9400288 	ldr	x8, [x20]
* 10:	f9455669 	ldr	x9, [x19, #2728] <-- trapping instruction