anticupidon:

Well, for gamers Hyper threading was never a selling point, but for data centers, content creators and people who render/fold/archive data is a big hit in performance. The more I think, the more an OpenSource CPU seems more and more needed.

The RIDL and Fallout speculative execution attacks allow attackers to leak confidential data across arbitrary security boundaries on a victim system

Unlike existing attacks, our attacks can leak arbitrary in-flight data from CPU-internal buffers (Line Fill Buffers, Load Ports, Store Buffers), including data never stored in CPU caches.

We show that existing defenses against speculative execution attacks are inadequate, and in some cases actually make things worse.

Our attacks affect all modern Intel CPUs in servers, desktops and laptops. This includes the latest 9th-generation processors, despite their in-silicon mitigations for Meltdown. Ironically, 9th-generation CPUs are more vulnerable to some of our attacks compared to older generation hardware.

Evildead666:

RISC-V is sort of open source i think. ARM would be a good choice. AMD do look to make bank if they aren't affected.

D3M1G0D:

It says in the article that AMD desktops and laptops aren't affected.

Kaarme:

The market won't care at all, though, as usual. Intel still can't produce as much CPUs as they could sell, allowing them to keep the prices up. They should call their next CPU Sieve Lake.

stereoman:

Not saying these aren't real vulnerabilities but I do think it's a little fishy every time we get a fix it involves some kind of performance hit, next fix will probably involve disabling cores, eventually even switching the computer on will be a security risk,

stereoman:

guess I'm going to have to order that faraday cage after all 😕