Mageia 2019-0174: Kernel Update for Microarchitectural Data Sampling Issues

This kernel update provides the upstream 4.14.119 that adds the kernel side mitigations for the Microarchitectural Data Sampling (MDS, also called ZombieLoad attack) vulnerabilities in Intel processors that can allow attackers to retrieve data being processed inside a CPU. To complete the mitigations new microcode is also needed, either by installing the microcode-0.20190514-1.mga6 package, or get an updated bios / uefi firmware from the motherboard vendor.
The fixed / mitigated issues are:
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged at...