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OpenAdvisories
High · 7.0 CVE-2026-71220 EUVD-2026-70448GHSA-959m-jjvx-c559

Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked di_height in gfs2_edit

Published Sep 3, 2026 · Updated Nov 5, 2026 · Assigned by redhat

Vendor: Red Hat Product: Red Hat Enterprise Linux 7 Product: Red Hat Enterprise Linux 8 Product: Red Hat Enterprise Linux 9 Package: gfs2-utils Package: gfs2-utils Package: gfs2-utils Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

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.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Enterprise Linux 7 — —
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 9 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 gfs2-utils 3.6.1-2 —
Debian 13 gfs2-utils No fix yet —
Debian 12 gfs2-utils No fix yet —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 26.10 gfs2-utils No fix yet —
Ubuntu 26.04 LTS gfs2-utils No fix yet —
Ubuntu 24.04 LTS gfs2-utils No fix yet —
Ubuntu 22.04 LTS gfs2-utils No fix yet —
Ubuntu 20.04 LTS gfs2-utils No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS gfs2-utils No fix yet —
Ubuntu 16.04 LTS gfs2-utils No fix yet —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 gfs2-utils 3.1.10-6.amzn2.0.1 ALAS2-2026-4004

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 gfs2-utils No fix yet —

Advisories 1

References