Red Hat Security Advisory 2016-1225-01 – The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: Two flaws were found in the way the Linux kernel’s networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use these flaws to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality.