(RHSA-2014:1763) Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

• A flaw was found in the way the Linux kernel’s futex subsystem handled
  reference counting when requeuing futexes during futex_wait(). A local,
  unprivileged user could use this flaw to zero out the reference counter of
  an inode or an mm struct that backs up the memory area of the futex, which
  could lead to a use-after-free flaw, resulting in a system crash or,
  potentially, privilege escalation. (CVE-2014-0205)

• A NULL pointer dereference flaw was found in the way the Linux kernel’s
  Stream Control Transmission Protocol (SCTP) implementation handled
  simultaneous connections between the same hosts. A remote attacker could
  use this flaw to crash the system. (CVE-2014-5077)

The security impact of the CVE-2014-0205 issue was discovered by Mateusz
Guzik of Red Hat.

All kernel users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. The system must be
rebooted for this update to take effect.