VULNERABILITY INTELLIGENCE

CVE-2026-23403

CVSS score5.5 MEDIUM
EPSS probability0.18%
CISA KEVNot currently listed
Published2026-04-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix memory leak in verify_header The function sets `*ns = NULL` on every call, leaking the namespace string allocated in previous iterations when multiple profiles are unpacked. This also breaks namespace consistency checking since *ns is always NULL when the comparison is made. Remove the incorrect assignment. The caller (aa_unpack) initializes *ns to NULL once before the loop, which is sufficient.

Weakness classification

  • nvd@nist.gov: CWE-401

Primary references