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Intel processor chip defect Kernel memory leaking


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Intel processor chip defect Kernel memory leaking

  #1 (permalink)
 
Blash's Avatar
 Blash 
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A place to discuss and share information regarding Intel's design flaw in the x-86-64 based chips. Basically everything they made going back at least 10 years.

Here is one article:

Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign/


Quoting 
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. It has to be fixed in software at the OS level, or go buy a new processor without the design blunder.


Quoting 
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. Your mileage may vary.

I spoke to Scott yesterday, owner of TradingComputers.com, about my machines and he confirmed it's my problem too....lol. He said Intel has 90% market share.

Ron

...My calamity is My providence, outwardly it is fire and vengeance, but inwardly it is light and mercy...
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  #2 (permalink)
 
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 Blash 
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Here is another article about this mess.

Huge Intel CPU Bug Allegedly Causes Kernel Memory Vulnerability With Up To 30% Performance Hit In Windows And Linux
Read more at https://hothardware.com/news/intel-cpu-bug-kernel-memory-isolation-linux-windows-macos#CAS6G3dD51MWxLbU.99


Ron

...My calamity is My providence, outwardly it is fire and vengeance, but inwardly it is light and mercy...
The steed of this Valley is pain; and if there be no pain this journey will never end.
Buy Low And Sell High (read left to right or right to left....lol)
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 sam028 
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@Blash, as a desktop/laptop user no need to panic (yet).

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 choke35 
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fyi Chromium Projects and Mozilla reactions/suggestions:

Chrome:
https://www.chromium.org/Home/chromium-security/ssca

Google strongly advises Chrome users to set the
https://support.google.com/chrome/answer/7623121?hl=en
site isolation flag or enterprise policies
https://support.google.com/chrome/a/answer/7581529.
(Attention: Increases memory usage!)


Mozilla:
https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/

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 xplorer 
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sam028 View Post
@Blash, as a desktop/laptop user no need to panic (yet).

Hi Sam, what makes you think desktop/laptop class is not affected?

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 Blash 
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xplorer View Post
Hi Sam, what makes you think desktop/laptop class is not affected?

Obviously I am not speaking for Sam.... all I can figure from his comment is that our machines will run faster (like "normal" and how we are used to) up until the point of the OS software major reworking, probably with the month here, and THEN we will have nice somewhat slower machines to lose money on.....lol

Ron

...My calamity is My providence, outwardly it is fire and vengeance, but inwardly it is light and mercy...
The steed of this Valley is pain; and if there be no pain this journey will never end.
Buy Low And Sell High (read left to right or right to left....lol)
Follow me on Twitter Visit my NexusFi Trade Journal Started this thread Reply With Quote
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Blash's Avatar
 Blash 
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Info here about Meltdown and Spectre.....

Meltdown, Spectre: Major chip flaws affect billions of devices - Jan. 3, 2018

Ron

...My calamity is My providence, outwardly it is fire and vengeance, but inwardly it is light and mercy...
The steed of this Valley is pain; and if there be no pain this journey will never end.
Buy Low And Sell High (read left to right or right to left....lol)
Follow me on Twitter Visit my NexusFi Trade Journal Started this thread Reply With Quote
  #8 (permalink)
 
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 Blash 
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Maybe a bit scared.... maybe a bit insider trading.... greed will always get you in the end......lol

Intel CEO sold $24M in stock after firm knew about cyber vulnerabilities | TheHill

Ron

...My calamity is My providence, outwardly it is fire and vengeance, but inwardly it is light and mercy...
The steed of this Valley is pain; and if there be no pain this journey will never end.
Buy Low And Sell High (read left to right or right to left....lol)
Follow me on Twitter Visit my NexusFi Trade Journal Started this thread Reply With Quote
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 xplorer 
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Blash View Post
Maybe a bit scared.... maybe a bit insider trading.... greed will always get you in the end......lol

Intel CEO sold $24M in stock after firm knew about cyber vulnerabilities | TheHill

Ron

Well he's not stupid

Would be useful if and when they publish the specific processors affected.

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 sam028 
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xplorer View Post
Hi Sam, what makes you think desktop/laptop class is not affected?

Their processors are affected but the probability of being impacted is lower than on cloud providers services (AWS, Google CE, ...). On your own PC you're usually the only user so you have to have a virus or a malware activating this thing. On AWS EC2 a client VM could impact the hypervisor (the physical server) and impacting the other clients.
So the main risk is for some cloud providers, for a "normal" user it's as risky a getting a bad malware. The Wannacry ransomware was much worst, but let's see what's happening next.

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