CVE-2025-21796 | Linux Kernel up to 6.14-rc2 lib/refcount.c use after free (Nessus ID 230686 / WID-SEC-2025-0453)

A vulnerability was found in Linux Kernel up to 6.1.128/6.6.78/6.12.15/6.13.3/6.14-rc2. It has been declared as critical. Affected is an unknown function in the library lib/refcount.c. Such manipulation leads to use after free. This vulnerability is listed as CVE-2025-21796. The attack must be carried out from within the local network. There is no available exploit. It is recommended to upgrade the affected component.