USN-4185-3 linux, linux-hwe, linux-oem vulnerability and regression

USN-4185-1 fixed vulnerabilities in the Linux kernel. It was discovered that the kernel fix for CVE-2019-0155 i915 missing Blitter Command Streamer check was incomplete on 64-bit Intel x86 systems. Also, the update introduced a regression that broke KVM guests where extended page tables EPT are...

TSX Asynchronous Abort speculative side channel

ISSUE DESCRIPTION This is very closely related to the Microarchitectural Data Sampling vulnerabilities from May 2019. Please see https://xenbits.xen.org/xsa/advisory-297.html for details about MDS. A new way to sample data from microarchitectural structures has been identified. A TSX Asynchronous...