Alexey Preobrazhensky

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 3.15.2 **Description** A race condition in the `ip4 datagram release cb` function allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets. **Recommendations** For Linux kernel versions prior to 3.15.2, update to version 3.15.2 or later to resolve the issue. As a temporary workaround, consider restricting access to IPv4 UDP sockets to minimize the risk of exploitation.