CVE-2026-71219

Medium

Description

A stack overflow vulnerability was found in gfs2-utils. The hash table traversal code in metawalk.c uses alloca() with an exponentially-derived size from the untrusted on-disk di_depth field without bounds validation. A crafted GFS2 filesystem image with a large di_depth value causes stack exhaustion and a denial of service when processed by fsck.gfs2, gfs2_edit, or savemeta.

SeverityMedium

CVSS4.7

Exploit probability—

Product

Redhat Enterprise Linux

PublishedSep 3, 2026

First seenSep 3, 2026

Weakness typeCWE-770Allocation of resources without limits

How to fix

Vendor advisories

access.redhat.com/security/cve/CVE-2026-71219
bugzilla.redhat.com/show_bug.cgi?id=2507750

Affected products

Product	Affected versions	Fixed in
redhat enterprise_linux	7.0, 8.0, 9.0	—

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