CVE-2025-21765

In the Linux kernel, the following vulnerability has been resolved:

ipv6: use RCU protection in ip6_default_advmss()

ip6_default_advmss() needs rcu protection to make
sure the net structure it reads does not disappear.

More information : https://git.kernel.org/stable/c/28de355b63ad42309ed5a03ee7c436c90512265b