CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period

In the Linux kernel, the following vulnerability has been resolved: ipv4: free inetopt and ireqopt after an RCU grace period tcpv4synrecvsock transfers ownership of ireq-ireqopt to the child socket newinet-inetopt without copying it. Another cpu can concurrently process a retransmitted SYN for th...