CVE-2026-23403

kernel: apparmor: fix memory leak in verify_header

Loading…

Severity

Unknown

Red Hat Product Security

—

CVSS

Review impact separately from score.

Published · April 1, 2026

Updated · June 28, 2026

Description

A flaw was found in AppArmor within the Linux kernel. This vulnerability, located in the verify_header function, causes a memory leak by incorrectly handling namespace strings when multiple security profiles are processed. This can lead to a gradual depletion of system memory, potentially impacting system stability and the integrity of security policy enforcement.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-763 · Release of Invalid Pointer or Reference