CVE-2026-23403

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix memory leak in verifyheader 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 checki...

The vulnerability of the aa_unpack() function in the AppArmor security module of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the aaunpack function in the security/apparmor/policyunpack.c file of the AppArmor security module in the Linux operating system is related to a potential memory overflow. Exploiting this vulnerability could allow an attacker to cause a service failure...