Red Hat Security Advisory 2015-0284-03 – The kernel packages contain the Linux kernel, the core of any Linux operating system. A race condition flaw was found in the way the Linux kernel’s KVM subsystem handled PIT emulation. A guest user who has access to the PIT I/O ports could use this flaw to crash the host. A flaw was found in the way the Linux kernel’s SCTP implementation validated INIT chunks when performing Address Configuration Change. A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system.