Fedora 24 : xen (2016-5d5a8bfbc5)

xen no longer crashes when built without -fno-tree-coalesce-vars, in systemd only try to load kernel modules that are in Fedora, x86 software guest page walk PS bit handling flaw XSA-176, CVE-2016-4480 Note that Tenable Network Security has extracted the preceding description block directly from...

FreeBSD : xen-kernel -- x86 software guest page walk PS bit handling flaw (e43b210a-4212-11e6-942d-bc5ff45d0f28)

The Xen Project reports : The Page Size PS page table entry bit exists at all page table levels other than L1. Its meaning is reserved in L4, and conditionally reserved in L3 and L2 depending on hardware capabilities. The software page table walker in the hypervisor, however, so far ignored that...

x86 software guest page walk PS bit handling flaw

ISSUE DESCRIPTION The Page Size PS page table entry bit exists at all page table levels other than L1. Its meaning is reserved in L4, and conditionally reserved in L3 and L2 depending on hardware capabilities. The software page table walker in the hypervisor, however, so far ignored that bit in L...