CVE-2026-46259 | Linux Kernel up to 6.19.3 procfs /proc/[pid]/stat do_task_stat real_parent use after free

A vulnerability was found in Linux Kernel up to 6.19.3 and classified as critical. The affected element is the function do_task_stat of the file /proc/[pid]/stat of the component procfs. Executing a manipulation of the argument real_parent can lead to use after free.

This vulnerability is handled as CVE-2026-46259. The attack can only be done within the local network. There is not any exploit available.

It is suggested to upgrade the affected component.