Red Hat Security Advisory 2015-1030-01 – The kernel packages contain the Linux kernel, the core of any Linux operating system. A use-after-free flaw was found in the way the Linux kernel’s SCTP implementation handled authentication key reference counting during INIT collisions. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system. This issue was discovered by Sun Baoliang of Red Hat.