A vulnerability, which was classified as critical , has been found in Linux Kernel up to 6.1.167/6.6.133/6.12.80/6.18.21/6.19.11 . The impacted element is an unknown function of the component netfilter . The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2026-31424 . The attack needs to be initiated within the local network. No exploit is available. It is advisable to upgrade the affected component.