Unable to handle kernel paging request at virtual address dfff800000000005
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
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
[dfff800000000005] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4375 Comm: kworker/1:5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Workqueue: events_long flush_old_commits
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : do_journal_end+0x12f4/0x3bc0 fs/reiserfs/journal.c:4096
lr : __getblk include/linux/buffer_head.h:411 [inline]
lr : do_journal_end+0x12e8/0x3bc0 fs/reiserfs/journal.c:4093
sp : ffff8000212b77c0
x29: ffff8000212b79f0 x28: ffff800021519000 x27: ffff0000dd712000
x26: ffff0000fb845017 x25: 0000000000000002 x24: ffff0000fb845017
x23: ffff0000fb845014 x22: 0000000000000000 x21: 0000000000000003
x20: 0000000000000012 x19: dfff800000000000 x18: 1fffe00033e8417e
x17: ffff800008a9f1f8 x16: ffff8000082f2a04 x15: ffff800008a9e894
x14: 0000000000000001 x13: 1fffff80006d0776 x12: 0000000000000000
x11: ff00800008a9f620 x10: 0000000000000000 x9 : ffff800008a9f620
x8 : 0000000000000005 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800008a9f3fc
x2 : 0000000000000001 x1 : 0000000000000002 x0 : 0000000000000000
Call trace:
 do_journal_end+0x12f4/0x3bc0 fs/reiserfs/journal.c:4096
 journal_end_sync+0x164/0x1c8 fs/reiserfs/journal.c:3539
 reiserfs_sync_fs fs/reiserfs/super.c:78 [inline]
 flush_old_commits+0x1d8/0x2c0 fs/reiserfs/super.c:111
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 97f685b0 9100a008 aa0003f6 d343fd08 (38736908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97f685b0 	bl	0xffffffffffda16c0
   4:	9100a008 	add	x8, x0, #0x28
   8:	aa0003f6 	mov	x22, x0
   c:	d343fd08 	lsr	x8, x8, #3
* 10:	38736908 	ldrb	w8, [x8, x19] <-- trapping instruction