Linked by Thom Holwerda on Wed 3rd Jan 2018 00:42 UTC
Intel

A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.

Programmers are scrambling to overhaul the open-source Linux kernel's virtual memory system. Meanwhile, Microsoft is expected to publicly introduce the necessary changes to its Windows operating system in an upcoming Patch Tuesday: these changes were seeded to beta testers running fast-ring Windows Insider builds in November and December.

Crucially, these updates to both Linux and Windows will incur a performance hit on Intel products. The effects are still being benchmarked, however we're looking at a ballpark figure of five to 30 per cent slow down, depending on the task and the processor model. More recent Intel chips have features - such as PCID - to reduce the performance hit.

That's one hell of a bug.

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RE: Microcode
by Kochise on Wed 3rd Jan 2018 15:43 UTC in reply to "Microcode"
Kochise
Member since:
2006-03-03

Article says :

Similar operating systems, such as Apple's 64-bit macOS, will also need to be updated – the flaw is in the Intel x86-64 hardware, and it appears a microcode update can't address it

Reply Parent Score: 2

RE[2]: Microcode
by leech on Wed 3rd Jan 2018 17:07 in reply to "RE: Microcode"
leech Member since:
2006-01-10

I was going to mention also that MacOS is affected as well, it isn't just a Windows and Linux issue, as the article here states.

Reply Parent Score: 0