loop1: detected capacity change from 0 to 32768
jfs_lookup: iget failed on inum 4
Unable to handle kernel paging request at virtual address dfff800000000006
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000006] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 6724 Comm: syz.1.16 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : diRead+0x354/0xa20 fs/jfs/jfs_imap.c:342
lr : diRead+0x2e0/0xa20 fs/jfs/jfs_imap.c:338
sp : ffff80009f027510
x29: ffff80009f027560 x28: dfff800000000000 x27: 0000000000000000
x26: 000000000000001c x25: ffff0000f6ba2ba0 x24: ffff0000dbe5b24e
x23: 0000000000000034 x22: ffff0000f90c1fd8 x21: ffff0000f64344f8
x20: ffff0000f64344e0 x19: 0000000000000004 x18: 1fffe000337a0688
x17: ffff80008f7be000 x16: ffff80008b007340 x15: 0000000000000001
x14: 1fffe0001f21838e x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001f21838f x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000006 x7 : ffff800081c0e9ec x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000805233a0
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000020
Call trace:
 diRead+0x354/0xa20 fs/jfs/jfs_imap.c:342 (P)
 jfs_iget+0x80/0x388 fs/jfs/inode.c:35
 jfs_lookup+0x198/0x32c fs/jfs/namei.c:1469
 lookup_open fs/namei.c:3686 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0xcc0/0x2c40 fs/namei.c:4043
 do_filp_open+0x2e8/0x36c fs/namei.c:4077
 do_sys_openat2+0x11c/0x1b4 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1461
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: 97c268c3 f94002e8 9100d117 d343fee8 (38fc6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97c268c3 	bl	0xffffffffff09a30c
   4:	f94002e8 	ldr	x8, [x23]
   8:	9100d117 	add	x23, x8, #0x34
   c:	d343fee8 	lsr	x8, x23, #3
* 10:	38fc6908 	ldrsb	w8, [x8, x28] <-- trapping instruction