kernel security and bug fix update

2.6.32-573.12.1 - Revert: netdrv igb: add support for 1512 PHY Stefan Assmann 1278275 1238551 2.6.32-573.11.1 - kvm svm: unconditionally intercept DB Paolo Bonzini 1279467 1279468 CVE-2015-8104 - x86 virt: guest to host DoS by triggering an infinite loop in microcode Paolo Bonzini 1277557 1277559...