CVE-2026-90320

kernel: ocfs2: validate external xattr entries when reading metadata

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 14, 2026

Description

A flaw was found in the Oracle Cluster File System 2 (ocfs2) component of the Linux kernel. This vulnerability occurs due to insufficient validation of external extended attribute (xattr) entries when reading metadata. A local attacker could craft malicious xattr metadata, leading to a use-after-free error. This can result in a system crash, causing a Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference