kernel security and bug fix update

2.6.32-754.18.2.OL6 - Update genkey bug 25599697 2.6.32-754.18.2 - x86 x86/speculation: Enable Spectre v1 swapgs mitigations Waiman Long 1724512 CVE-2019-1125 - x86 x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations Waiman Long 1724512 CVE-2019-1125 2.6.32-754.18.1 - virt xenbu...