A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.18.20/6.19.10/7.0-rc5. Affected by this vulnerability is the function futex_key_to_node_opt of the file kernel/futex/core.c. Such manipulation leads to use after free.

This vulnerability is referenced as CVE-2026-23415. The attack needs to be initiated within the local network. No exploit is available.

You should upgrade the affected component.