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Meltdown & Spectre Information and Discussion

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Re: Meltdown & Spectre Information and Discussion
« Reply #8 on: January 04, 2018, 07:01:01 AM »
 

JmaCWQ

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Re: Meltdown & Spectre Information and Discussion
« Reply #7 on: January 04, 2018, 06:50:16 AM »
 

ian_r_h

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Thanks for this.  Though I'm not sure how well I understand some parts.

In essence, and from technical news posts, my understanding is that (anyone has better knowledge may correct me):-

  • Intel processors since the 1990s are vulnerable to this because of using the "speculative" approach.  But cancelling this approach can greatly slow processing in processor-intensive tasks.
  • AMD prcoessors are technically unknown according to some reports, and unaffected by others; and possibly affected in their own right by others (I don't have the sources to hand).  My take is that it is unknown/thought unlikely to affect AMD processors.
  • My take is also that it requires local access to exploit (as known at the moment), but whether that will continue the case isn't reported on in the items I've read.
  • This has been known about for some time.
  • The problem requires fixing at the OS level.

I'm presuming that using Intel processors with the current kernel 4.4.x series in Linux Lite leaves it theoretically vulnerable; though I understand that at present there is no malware exploiting the problem?

Don't worry about artificial intelligence.  Worry about natural stupidity.  :)
 

Re: Meltdown & Spectre Information and Discussion
« Reply #6 on: January 04, 2018, 04:48:36 AM »
 

TMG1961

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The video lost me about 10 seconds after it started. I have no idea what he is talking about.
Life on earth is expensive but it does include a free trip around the sun.
 

Re: Meltdown & Spectre Information and Discussion
« Reply #5 on: January 03, 2018, 11:55:42 PM »
 

Coastie

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@Jerry, watched video but it was beyond my understanding.  :-[ Glad my main computer is AMD based on the recommendations of the ghost formerly know as Spatry.  ;)


Left Mac OS X for Linux in Jan 2014
 

Re: Meltdown & Spectre Information and Discussion
« Reply #4 on: January 03, 2018, 06:55:10 PM »
 

Jerry

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Re: Meltdown & Spectre Information and Discussion
« Reply #3 on: January 03, 2018, 06:48:13 PM »
 

Jerry

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A good, simple breakdown:

 

Re: Meltdown & Spectre Information and Discussion
« Reply #2 on: January 03, 2018, 11:54:09 AM »
 

newtusmaximus

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Which means?
Just  keep loading LL updates and all will be solved??
2006 - HP DC7700p ultraslim Desktop Intel 6300 cpu  4GB Ram LL3.8 64bit.
2007 - Fujitsu Siemens V3405 Laptop  2 GB Ram LL3.6 32bit. Now 32bit Debian 9 + nonfree.
2006 - Fujitsu Siemens Si1520 Laptop Intel T720 cpu 3GB Ram   LL5.6 64 Bit
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Meltdown & Spectre Information and Discussion
« Reply #1 on: January 03, 2018, 11:36:05 AM »
 

Ottawagrant

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Happy New Year Everyone:
What better way to ring in 2018 than to scramble and fix a ten-year-old security flaw in the processor.
There is a kernel memory leak in Intel processors design that now put Windows and Linux users in harms ways as programmers rush to apply patches as quickly as possible.

https://www.onmsft.com/news/intels-kernel-memory-leak-flaw-forces-microsoft-others-to-apply-performance-slowing-patch

But wait!
As for Linux users, there are patches for the Linux kernel available now.
« Last Edit: January 23, 2018, 06:01:21 PM by Jerry »
 

 

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