CVE-2025-21765 Information

Description

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.

Reference

https://git.kernel.org/stable/c/3c8ffcd248da34fc41e52a46e51505900115fc2a https://git.kernel.org/stable/c/4176a68b0db8fc74ac14fcd00ba8231371051dc2 https://git.kernel.org/stable/c/550ed693f47370502a71b85382e7f9e6417300b8 https://git.kernel.org/stable/c/713a40c892f40300d63691d9f85b2a23b48fe1e8 https://git.kernel.org/stable/c/84212387caadb211cd9dadd6fd5563bd37dc1f5e