---
id: CVE-2026-71220
title: A stack out-of-bounds write vulnerability was found in gfs2-utils
summary: >-
  A stack out-of-bounds write vulnerability was found in gfs2-utils. In
  gfs2_edit, the di_height field from on-disk inode metadata is used as an array
  index without bounds checking, causing a stack buffer overflow that may lead
  to arbitrar…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
vendor: redhat
product: enterprise_linux
affected:
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
published: '2026-09-03'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T16:31:31.880'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71220'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-71220'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2511398'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
epss: 0.00172
epssPercentile: 0.05761
ingestedAt: '2026-09-22T17:07:07.355Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-03T12:52:57.593511Z'
---

## Overview

A stack out-of-bounds write vulnerability was found in gfs2-utils. In gfs2_edit, the di_height field from on-disk inode metadata is used as an array index without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.

## Affected

- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`

## Remediation

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