CVE-2026-71221

High

Description

A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.

SeverityHigh

CVSS7.0

Exploit probability—

Product

Redhat Enterprise Linux

PublishedSep 3, 2026

First seenSep 3, 2026

Weakness typeCWE-787Out-of-bounds write

How to fix

Vendor advisories

access.redhat.com/security/cve/CVE-2026-71221
bugzilla.redhat.com/show_bug.cgi?id=2511396

Affected products

Product	Affected versions	Fixed in
redhat enterprise_linux	7.0, 8.0, 9.0	—

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