syzbot

Unable to handle kernel paging request at virtual address dfff800000000104
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
[dfff800000000104] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4816 Comm: syz-executor259 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : diIAGRead fs/jfs/jfs_imap.c:2665 [inline]
pc : diRead+0x140/0xa40 fs/jfs/jfs_imap.c:316
lr : diRead+0x138/0xa40 fs/jfs/jfs_imap.c:315
sp : ffff800021c67410
x29: ffff800021c67460 x28: dfff800000000000 x27: 1ffff0000438ceca
x26: ffff0000e1bc4e58 x25: ffff70000438cea4 x24: 0000000000000820
x23: ffff0000e19a9c88 x22: ffff0000e19a9ff0 x21: ffff0000e1bc4e70
x20: 0000000000000000 x19: 0000000000000004 x18: ffff800021c670e0
x17: 0000000000000000 x16: ffff800011ac2570 x15: 000000000001043e
x14: ffff80001713e500 x13: dfff800000000000 x12: 0000000000000001
x11: 0000000000000001 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000104 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000082e3f1c
x2 : 0000000000000001 x1 : 0000000000000008 x0 : 0000000000000001
Call trace:
 diIAGRead fs/jfs/jfs_imap.c:2665 [inline]
 diRead+0x140/0xa40 fs/jfs/jfs_imap.c:316
 jfs_iget+0x88/0x364 fs/jfs/inode.c:35
 jfs_lookup+0x1e8/0x39c fs/jfs/namei.c:1467
 lookup_open fs/namei.c:3440 [inline]
 open_last_lookups fs/namei.c:3532 [inline]
 path_openat+0xd9c/0x26cc fs/namei.c:3739
 do_filp_open+0x1a8/0x3b4 fs/namei.c:3769
 do_sys_openat2+0x128/0x3e0 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_openat fs/open.c:1285 [inline]
 __se_sys_openat fs/open.c:1280 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1280
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: f85802d4 97a8bf15 91208298 d343ff08 (387c6908) 
---[ end trace eeb226db4c5fd611 ]---
----------------
Code disassembly (best guess):
   0:	f85802d4 	ldur	x20, [x22, #-128]
   4:	97a8bf15 	bl	0xfffffffffea2fc58
   8:	91208298 	add	x24, x20, #0x820
   c:	d343ff08 	lsr	x8, x24, #3
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction