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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

Do not run gfs2_edit on untrusted or potentially compromised GFS2 filesystem images. Run gfs2-utils tools in a containerized or VM-isolated environment when processing untrusted images. Disable automatic fsck at boot for GFS2 filesystems until patches are applied by setting fs_passno to 0 in /etc/fstab.

History

Tue, 22 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Fri, 04 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 03 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat gfs2-utils
Vendors & Products Redhat gfs2-utils

Thu, 03 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 03 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked di_height in gfs2_edit
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-787
CPEs cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-22T17:50:57.698Z

Reserved: 2026-08-05T08:51:19.852Z

Link: CVE-2026-71220

cve-icon Vulnrichment

Updated: 2026-09-03T12:53:15.541Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-03T13:06:02.703

Modified: 2026-09-22T16:31:31.880

Link: CVE-2026-71220

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-03T11:43:38Z

Links: CVE-2026-71220 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T15:33:10Z

Weaknesses