CVE-2025-21762 Information

Description

In the Linux kernel the following vulnerability has been resolved:

arp: use RCU protection in arp_xmit()

arp_xmit() can be called without RTNL or RCU protection.

Use RCU protection to avoid potential UAF.

Reference

https://git.kernel.org/stable/c/01d1b5c9abcaff29a43f1d17a19c33eec92c7dbe https://git.kernel.org/stable/c/2c331718d3389b6c5f6855078ab7171849e016bd https://git.kernel.org/stable/c/a42b69f692165ec39db42d595f4f65a4c8f42e44 https://git.kernel.org/stable/c/e9f4dee534eb1b225b0a120395ad9bc2afe164d3 https://git.kernel.org/stable/c/f189654459423d4d48bef2d120b4bfba559e6039