CVE-2026-45884 | Linux Kernel up to 6.12.74/6.18.13/6.19.3 apparmor aa_get_buffer buffer overflow (WID-SEC-2026-1700)

A vulnerability was found in Linux Kernel up to 6.12.74/6.18.13/6.19.3. It has been rated as critical. Affected is the function aa_get_buffer of the component apparmor. This manipulation causes buffer overflow. The identification of this vulnerability is CVE-2026-45884. The attack needs to be done within the local network. There is no exploit available. Upgrading the affected component is advised.