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Back to active CVEs
Medium · CVSS 4.7CVE-2026-71224

Gfs2-utils: gfs2-utils: stack overflow via alloca(i_height) in metadata walkCVE-2026-71224

Answer in brief

CVE-2026-71224 records a Medium severity (CVSS 4.7) vulnerability in Gfs2-utils: gfs2-utils: stack overflow via alloca(i_height) in metadata walk. The current sources do not mark it as known exploited. The current feed maps Red Hat/gfs2-utils (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 3, 2026Updated Sep 22, 2026Source checked Oct 18, 2026First seen by HOL Sep 3, 2026Material review Sep 22, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.7
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 4.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/gfs2-utils (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/gfs2-utilsgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/gfs2-utils.
  2. 2Review the reported fix. Source-reported workaround: Run gfs2-utils tools in a containerized or VM-isolated environment when processing potentially compromised or untrusted GFS2 filesystem images. Disable automatic fsck at boot for GFS2 filesystems until patches are applied by setting fs_passno to 0 in /etc/fstab. Use ulimit -s to reduce the stack size limit, converting potential exploitation into a controlled crash.

Evidence timeline and material changes

  1. Published upstream

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 3, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

A stack overflow vulnerability was found in gfs2-utils. The metadata walk code in metawalk.c uses alloca() with an untrusted inode height value from on-disk metadata without bounds validation, causing stack exhaustion and a denial of service when processing crafted GFS2 filesystem images.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Gitea Actions artifact v4 API unbounded request bodyAlso CWE-770
  • Remote Code Execution via JDBC User Store Configuration in Multiple WSO2 Products Allows Arbitrary Code ExecutionSame generic ecosystem
  • Gitea OpenID account linking without session bindingSame generic ecosystem
  • Gitea panic on the repositories route of individual usersSame generic ecosystem
  • Gitea cross-site request forgery on repository topicsSame generic ecosystem
  • Gitea reactions accepted on locked issues and commentsSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-770
Source
CVE List V5
Source checked
Oct 18, 2026
References
2 linked sources
Open source record