CVE-2025-21857 | Linux Kernel up to 6.6.79/6.12.16/6.13.4/6.14-rc3 tcf_exts_miss_cookie_base_alloc null pointer dereference
A vulnerability was found in Linux Kernel up to 6.6.79/6.12.16/6.13.4/6.14-rc3. It has been declared as critical. This vulnerability affects the function tcf_exts_miss_cookie_base_alloc. The manipulation leads to null pointer dereference.
This vulnerability was named CVE-2025-21857. Access to the local network is required for this attack to succeed. There is no exploit available.
It is recommended to upgrade the affected component.