syzbot

loop0: detected capacity change from 0 to 4096
ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512).
ntfs3: loop0: Mark volume as dirty due to NTFS errors
Unable to handle kernel paging request at virtual address dfff800000000004
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
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
[dfff800000000004] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6239 Comm: syz-executor387 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : attr_data_read_resident+0xb0/0x6b0 fs/ntfs3/attrib.c:1239
lr : attr_data_read_resident+0x8c/0x6b0 fs/ntfs3/attrib.c:1236
sp : ffff80009a137500
x29: ffff80009a137500 x28: 1ffff00013426ec4 x27: ffff80009a137620
x26: dfff800000000000 x25: ffff80009a137610 x24: dfff800000000000
x23: ffff0000dbe9f600 x22: 1ffff00013426ec2 x21: 0000000000000020
x20: ffff0000d7376108 x19: 0000000000000000 x18: ffff80009a137040
x17: 000000000000cb37 x16: ffff800080288ddc x15: 0000000000000001
x14: 0000000000000000 x13: 0000000000000001 x12: ffff0000d4ec3c80
x11: 0000000000ff0100 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000004 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000080 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 attr_data_read_resident+0xb0/0x6b0 fs/ntfs3/attrib.c:1239
 ntfs_get_block_vbo+0x2b0/0xc18 fs/ntfs3/inode.c:580
 ntfs_get_block_bmap+0xa0/0xe0 fs/ntfs3/inode.c:695
 generic_block_bmap+0x11c/0x1bc fs/buffer.c:2744
 ntfs_bmap+0x30/0x40 fs/ntfs3/inode.c:702
 bmap+0xa8/0xe8 fs/inode.c:1792
 ioctl_fibmap fs/ioctl.c:77 [inline]
 file_ioctl fs/ioctl.c:328 [inline]
 do_vfs_ioctl+0x21d0/0x2ab0 fs/ioctl.c:883
 __do_sys_ioctl fs/ioctl.c:902 [inline]
 __se_sys_ioctl fs/ioctl.c:890 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:890
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Code: 128002a0 14000120 91008275 d343fea8 (38786908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	128002a0 	mov	w0, #0xffffffea            	// #-22
   4:	14000120 	b	0x484
   8:	91008275 	add	x21, x19, #0x20
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	38786908 	ldrb	w8, [x8, x24] <-- trapping instruction