syzbot

Unable to handle kernel paging request at virtual address dfff800000000006
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
[dfff800000000006] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 234 Comm: jfsCommit Not tainted 5.15.150-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : write_special_inodes fs/jfs/jfs_logmgr.c:208 [inline]
pc : lmLogSync+0x128/0x98c fs/jfs/jfs_logmgr.c:943
lr : write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline]
lr : lmLogSync+0x104/0x98c fs/jfs/jfs_logmgr.c:943
sp : ffff80001af07b00
x29: ffff80001af07bc0 x28: ffff80001c001000 x27: dfff800000000000
x26: ffff0000d9f42000 x25: ffff80001af07b20 x24: 1ffff000029cb2d4
x23: 0000000000000002 x22: 0000000000000006 x21: 0000000000000030
x20: ffff0000c142b638 x19: ffff0000d9f42000 x18: 1fffe0003690298e
x17: 1fffe0003690298e x16: ffff80000824d658 x15: ffff8000149aeb80
x14: 1ffff0000292206a x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000000 x9 : c684eda303509b00
x8 : 0000000000000006 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000010
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 write_special_inodes fs/jfs/jfs_logmgr.c:208 [inline]
 lmLogSync+0x128/0x98c fs/jfs/jfs_logmgr.c:943
 jfs_syncpt+0x74/0x98 fs/jfs/jfs_logmgr.c:1049
 txEnd+0x2e0/0x574 fs/jfs/jfs_txnmgr.c:549
 txLazyCommit fs/jfs/jfs_txnmgr.c:2718 [inline]
 jfs_lazycommit+0x4d4/0xa40 fs/jfs/jfs_txnmgr.c:2766
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Code: 97bfefe2 f94002a8 9100c115 d343fea8 (387b6908) 
---[ end trace 5e741ebe37c7e6d8 ]---
----------------
Code disassembly (best guess):
   0:	97bfefe2 	bl	0xfffffffffeffbf88
   4:	f94002a8 	ldr	x8, [x21]
   8:	9100c115 	add	x21, x8, #0x30
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	387b6908 	ldrb	w8, [x8, x27] <-- trapping instruction