---
id: CVE-2024-0775
title: >-
  A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in
  ext4 in the Linux kernel
summary: >-
  A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in
  ext4 in the Linux kernel. This flaw allows a local user to cause an
  information leak problem while freeing the old quota file names before a
  potential failure, l…
severity: medium
cvss: 6.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-416
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 6.4
  - linux_kernel = 6.4
  - enterprise_linux = 9.0
patched:
  - linux_kernel 6.4
published: '2024-01-22'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-0775'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2024-0775'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2259414'
    label: secalert@redhat.com
  - url: >-
      https://scm.linefinity.com/common/linux-stable/commit/4c0b4818b1f636bc96359f7817a2d8bab6370162
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2024-0775'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2259414'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://scm.linefinity.com/common/linux-stable/commit/4c0b4818b1f636bc96359f7817a2d8bab6370162
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00225
epssPercentile: 0.13397
ingestedAt: '2026-08-11T16:47:02.590Z'
---

## Overview

A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free.

## Affected

- `linux_kernel < 6.4`
- `linux_kernel = 6.4`
- `enterprise_linux = 9.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.4`