[X/B][SRU] Fix for CVE-2019-19332

[Connor Kuehl]

https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-19332.html

>From the link above:

    "[KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID]"

Just required minor offset adjustments for each.

This patch is already on the way into Disco, Eoan, and Focal by way of upstream
stable updates.