---
id: CVE-2025-71267
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST

  We found an infinite loop bug in the ntfs3 file system that can lead to a
  Denial-of-Service (DoS) condit…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST

  We found an infinite loop bug in the ntfs3 file system that can lead to a
  Denial-of-Service (DoS) condit…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-835
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.15, < 5.15.202'
  - 'linux_kernel >= 5.16, < 6.1.165'
  - 'linux_kernel >= 6.2, < 6.6.128'
  - 'linux_kernel >= 6.7, < 6.12.75'
  - 'linux_kernel >= 6.13, < 6.18.16'
  - 'linux_kernel >= 6.19, < 6.19.6'
patched:
  - linux_kernel 6.19.6
published: '2026-03-18'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:25.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71267'
references:
  - url: 'https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-019113.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-082556.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-457936.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00129
epssPercentile: 0.02559
ingestedAt: '2026-09-08T15:33:26.994Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST

We found an infinite loop bug in the ntfs3 file system that can lead to a
Denial-of-Service (DoS) condition.

A malformed NTFS image can cause an infinite loop when an ATTR_LIST attribute
indicates a zero data size while the driver allocates memory for it.

When ntfs_load_attr_list() processes a resident ATTR_LIST with data_size set
to zero, it still allocates memory because of al_aligned(0). This creates an
inconsistent state where ni->attr_list.size is zero, but ni->attr_list.le is
non-null. This causes ni_enum_attr_ex to incorrectly assume that no attribute
list exists and enumerates only the primary MFT record. When it finds
ATTR_LIST, the code reloads it and restarts the enumeration, repeating
indefinitely. The mount operation never completes, hanging the kernel thread.

This patch adds validation to ensure that data_size is non-zero before memory
allocation. When a zero-sized ATTR_LIST is detected, the function returns
-EINVAL, preventing a DoS vulnerability.

## Affected

- `linux_kernel >= 5.15, < 5.15.202`
- `linux_kernel >= 5.16, < 6.1.165`
- `linux_kernel >= 6.2, < 6.6.128`
- `linux_kernel >= 6.7, < 6.12.75`
- `linux_kernel >= 6.13, < 6.18.16`
- `linux_kernel >= 6.19, < 6.19.6`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.19.6`