In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF. CREATE(Triage):(User=admin) CVE-2025-21763 (https://nvd.nist.gov/vuln/detail/CVE-2025-21763)