A vulnerability was found in Linux Kernel up to 6.12.93/6.18.35/7.0.12 . It has been declared as critical . The impacted element is the function pppol2tp_ioctl of the component l2tp . Such manipulation of the argument sk leads to use after free. This vulnerability is referenced as CVE-2026-53262 . The attack needs to be initiated within the local network. No exploit is available. It is recommended to upgrade the affected component.