CVE-2026-63978 | Linux Kernel up to 6.12.92/7.0.11 Net Handshake handshake_net_exit race condition

A vulnerability labeled as very critical has been found in Linux Kernel up to 6.12.92/7.0.11. Impacted is the function handshake_net_exit of the component Net Handshake. The manipulation results in race condition. This vulnerability was named CVE-2026-63978. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.