CVE-2026-71219

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.

• CWE-770

• https://access.redhat.com/security/cve/CVE-2026-71219Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2507750Issue Tracking, Vendor Advisory

Published

Sep 3, 2026

Last Modified

Sep 22, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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