CVE-2026-23403 in Linux Kernel

Résumé (Anglaise)

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.

Responsable

Linux

Réserver

13/01/2026

Divulgation

01/04/2026

Entrées

VulDB provides additional information and datapoints for this CVE:

ID	Vulnérabilité	CWE	Exp	Con	CVE
354622	Linux Kernel apparmor verify_header déni de service	401	Non défini	Correctif officiel	CVE-2026-23403