---
id: CVE-2025-38701
title: 'ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr

  A syzbot fuzzed image triggered a BUG_ON in ext4_update_inline_data()
  when an inode had the INLINE_DATA_FL…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    8085a7324d8ec448c4a764af7853e19bbd64e17a
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    1199a6399895f4767f0b9a68a6ff47c3f799b7c7
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    7f322c12df7aeed1755acd3c6fab48c7807795fb
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    2817ac83cb4732597bf36853fe13ca616f4ee4e2
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    d960f4b793912f35e9d72bd9d1e90553063fcbf1
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    81e7e2e7ba07e7c8cdce43ccad2f91adbc5a919c
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    279c87ef7b9da34f65c2e4db586e730b667a6fb9
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    8a6f89d42e61788605722dd9faf98797c958a7e5
  - >-
    Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 <
    099b847ccc6c1ad2f805d13cfbcc83f5b6d4bc42
  - Linux 3.8
published: '2025-09-04'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:07:39.600Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-38701'
references:
  - url: 'https://git.kernel.org/stable/c/8085a7324d8ec448c4a764af7853e19bbd64e17a'
  - url: 'https://git.kernel.org/stable/c/1199a6399895f4767f0b9a68a6ff47c3f799b7c7'
  - url: 'https://git.kernel.org/stable/c/7f322c12df7aeed1755acd3c6fab48c7807795fb'
  - url: 'https://git.kernel.org/stable/c/2817ac83cb4732597bf36853fe13ca616f4ee4e2'
  - url: 'https://git.kernel.org/stable/c/d960f4b793912f35e9d72bd9d1e90553063fcbf1'
  - url: 'https://git.kernel.org/stable/c/81e7e2e7ba07e7c8cdce43ccad2f91adbc5a919c'
  - url: 'https://git.kernel.org/stable/c/279c87ef7b9da34f65c2e4db586e730b667a6fb9'
  - url: 'https://git.kernel.org/stable/c/8a6f89d42e61788605722dd9faf98797c958a7e5'
  - url: 'https://git.kernel.org/stable/c/099b847ccc6c1ad2f805d13cfbcc83f5b6d4bc42'
tags:
  - cve.org
epss: 0.00183
epssPercentile: 0.07778
ingestedAt: '2026-10-15T05:52:46.083Z'
---

## Overview

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

ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr

A syzbot fuzzed image triggered a BUG_ON in ext4_update_inline_data()
when an inode had the INLINE_DATA_FL flag set but was missing the
system.data extended attribute.

Since this can happen due to a maiciouly fuzzed file system, we
shouldn't BUG, but rather, report it as a corrupted file system.

Add similar replacements of BUG_ON with EXT4_ERROR_INODE() ii
ext4_create_inline_data() and ext4_inline_data_truncate().

## Affected

- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 8085a7324d8ec448c4a764af7853e19bbd64e17a`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 1199a6399895f4767f0b9a68a6ff47c3f799b7c7`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 7f322c12df7aeed1755acd3c6fab48c7807795fb`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 2817ac83cb4732597bf36853fe13ca616f4ee4e2`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < d960f4b793912f35e9d72bd9d1e90553063fcbf1`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 81e7e2e7ba07e7c8cdce43ccad2f91adbc5a919c`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 279c87ef7b9da34f65c2e4db586e730b667a6fb9`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 8a6f89d42e61788605722dd9faf98797c958a7e5`
- `Linux >= 67cf5b09a46f72e048501b84996f2f77bc42e947 < 099b847ccc6c1ad2f805d13cfbcc83f5b6d4bc42`
- `Linux 3.8`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.