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CVE-2026-71219 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.7 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:4.7 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/security/cve/CVE-2026-71219	[email protected]	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2507750	[email protected]	Issue TrackingVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-770	Allocation of Resources Without Limits or Throttling	[email protected]

Affected Products

Product	Versions
redhat enterprise linux	7.0 8.0 9.0
CPE cpe:2.3:o:redhat:enterprise_linux:7.0:::::::* cpe:2.3:o:redhat:enterprise_linux:8.0:::::::* cpe:2.3:o:redhat:enterprise_linux:9.0:::::::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 22, 2026	Initial Analysis	[email protected]
Sep 4, 2026	CVE Modified	CISA-ADP
Sep 3, 2026	New CVE Received	[email protected]