CVE-2026-90321

kernel: ocfs2: validate inline xattrs during inode block validation

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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 Linux kernel's OCFS2 (Oracle Cluster File System 2) component. Improper validation of inline extended attributes (xattrs) during inode block validation can lead to a use-after-free vulnerability. A local attacker could exploit this by providing specially crafted file system metadata, potentially causing a denial of service or information disclosure.

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-125 · Out-of-bounds Read