Re: Intel Microcode updates

From	Michael Stone <mstone@debian.org>
Newsgroups	linux.debian.security
Subject	Re: Intel Microcode updates
Date	2019-06-10 20:40 +0200
Message-ID	<y7xn4-Ex-13@gated-at.bofh.it> (permalink)
References	<y7jN8-18n-3@gated-at.bofh.it> <y7qvg-55Y-9@gated-at.bofh.it> <y7wAF-97-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, Jun 10, 2019 at 07:46:47PM +0200, Davide Prina wrote:
>On 10/06/19 13:16, Michael Stone wrote:
>>Your CPU is not supported my Intel, so you either accept the risk or 
>>buy a new one.
>
>you have another choice: disable the SMP & C. and all mitigation form Linux

That's not correct, but will set your performance back 20 years.

>* you will get only mitigation and not bug correction. Mitigation == 
>the attack is more hard, but it can be done successfully. I don't have 

That is also not correct.

>* your CPU run slower because of these mitigation (I have rad that for 
>some task you can have 50% or less performance),

That depends on the CPU, some see significant impacts, others see none 
or were never vulnerable to some of these issues.

There's enough misinformation about this class of attacks without 
spreading more...

>* new hardware bugs and variant of previous bugs are found constantly, 
>so we need a new CPU class designed for security. I have read that 
>some people want to create a new CPU under free license, I think that 
>is the only solution that we can trust

For those who want to use a computer now, that's not particularly 
helpful.

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Intel Microcode updates Russell Coker <russell@coker.com.au> - 2019-06-10 06:10 +0200
  Re: Intel Microcode updates Michael Stone <mstone@debian.org> - 2019-06-10 13:20 +0200
    Re: Intel Microcode updates Davide Prina <davide.prina@gmail.com> - 2019-06-10 19:50 +0200
      Re: Intel Microcode updates Michael Stone <mstone@debian.org> - 2019-06-10 20:40 +0200
        Re: Intel Microcode updates Davide Prina <davide.prina@gmail.com> - 2019-06-11 20:10 +0200
          Re: Intel Microcode updates Michael Stone <mstone@debian.org> - 2019-06-11 22:00 +0200
    Re: Intel Microcode updates Russell Coker <russell@coker.com.au> - 2019-06-11 14:00 +0200
  Re: Intel Microcode updates Henrique de Moraes Holschuh <hmh@debian.org> - 2019-06-11 04:20 +0200
    Re: Intel Microcode updates Russell Coker <russell@coker.com.au> - 2019-06-11 14:00 +0200
      Re: Intel Microcode updates Moritz Mühlenhoff <jmm@inutil.org> - 2019-06-11 14:30 +0200
        Re: Intel Microcode updates Henrique de Moraes Holschuh <hmh@debian.org> - 2019-06-12 17:00 +0200
          Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-18 13:00 +0200
            Re: Intel Microcode updates Henrique de Moraes Holschuh <hmh@debian.org> - 2019-06-23 22:30 +0200
              Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-23 22:40 +0200
                Re: Intel Microcode updates Henrique de Moraes Holschuh <hmh@debian.org> - 2019-06-24 04:10 +0200
              Re: Intel Microcode updates Davide Prina <davide.prina@gmail.com> - 2019-06-24 19:40 +0200
          Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-18 22:10 +0200
          Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-22 14:30 +0200
    Re: Intel Microcode updates Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2019-06-11 19:10 +0200
      Re: Intel Microcode updates Holger Levsen <holger@layer-acht.org> - 2019-06-11 19:20 +0200
        Re: Intel Microcode updates Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2019-06-11 21:10 +0200
          Re: Intel Microcode updates Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2019-06-11 21:20 +0200
            Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-18 11:20 +0200
              Re: Intel Microcode updates Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2019-06-18 20:30 +0200
                Re: Intel Microcode updates Rob van der Putten <rob@sput.nl> - 2019-06-20 14:40 +0200
            Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-18 22:10 +0200
            Re: Intel Microcode updates Elmar Stellnberger <estellnb@gmail.com> - 2019-06-22 14:30 +0200
    Re: Intel Microcode updates Davide Prina <davide.prina@gmail.com> - 2019-06-23 10:00 +0200
      Re: Intel Microcode updates Lou Poppler <LouPoppler@cableone.net> - 2019-06-24 02:20 +0200
        Re: Intel Microcode updates Davide Prina <davide.prina@gmail.com> - 2019-06-24 20:00 +0200

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