CVE-2026-71219 — Gfs2-utils: gfs2-utils: stack overflow via alloca(1<<di_depth) in hash table traversal
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 d…
Published: 2026-09-03 · CVSS: 4.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7