In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF. CREATE(Triage):(User=admin) CVE-2025-21764 (https://nvd.nist.gov/vuln/detail/CVE-2025-21764)