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.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	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:::::::*

History

22 Sep 2026, 16:26

Type	Values Removed	Values Added
First Time		Redhat Redhat enterprise Linux
References	~~() https://access.redhat.com/security/cve/CVE-2026-71219 -~~	() https://access.redhat.com/security/cve/CVE-2026-71219 - Vendor Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2507750 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2507750 - Issue Tracking, Vendor Advisory
CPE		cpe:2.3:o:redhat:enterprise_linux:8.0:::::::* cpe:2.3:o:redhat:enterprise_linux:9.0:::::::* cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

Information

Published : 2026-09-03 13:06

Updated : 2026-09-22 16:26

NVD link : CVE-2026-71219

Mitre link : CVE-2026-71219

CVE.ORG link : CVE-2026-71219

JSON object : View

Products Affected

redhat

enterprise_linux

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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