qemu-kvm security and bug fix update

0.12.1.2-2.491.el68.6 - kvm-cirrusvga-fix-division-by-0-for-color-expansion-rop.patch bz1418230 bz1419416 - kvm-cirrusvga-fix-off-by-one-in-blitregionisunsafe.patch bz1418230 bz1419416 - kvm-display-cirrus-check-vga-bits-per-pixel-bpp-value.patch bz1418230 bz1419416 -...