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Groups > alt.os.linux > #39276

Re: "Linux kernel security needs a rethink" ?

From Mike Easter <MikeE@ster.invalid>
Newsgroups alt.os.linux
Subject Re: "Linux kernel security needs a rethink" ?
Date 2016-09-27 09:03 -0700
Message-ID <e4vjj0Fao1jU1@mid.individual.net> (permalink)
References <4svkubl9fpf4fut5tq8chgg6pqbtut0clt@net.com> <e4vidrFaf0kU1@mid.individual.net> <nse4ii$lf2$2@news.albasani.net>

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Melzzzzz wrote:
> Mike Easter wrote:
>> Yrrah wrote:
>>> And now explained to the unitiated? ;-)
>>
>> Drivers in the kernel is a HUGE problem.
>
> What does this means?

The presentation covered by Ars doesn't provide any direction to a solution.

>> Where is the Tanenbaum crowd when we need them?
>>
>> http://www.cs.vu.nl/~ast/reliable-os/  Tanenbaum-Torvalds Debate: Part
>> II - (2006 May)
>>
> Microkernel lost it's attraction as it is slow. What we have today are
> actually hybrids...

Dangerous LKM modules.

Even with all of the loadable modules unloaded, the monolithic kernel is 
'vast', not really resembling anything like a 'self-healing' micro or 
nano kernel used for some secure purposes.

The DoD sez; "The TCB shall [implement] complete, conceptually simple 
protection mechanisms with precisely defined semantics. Significant 
system engineering shall be directed toward minimizing the complexity of 
the TCB, as well as excluding from the TCB those modules that are not 
protection-critical."

... where TCB = trusted computing base which of course includes/is the 
kernel and whatever danger is hidden inside.



-- 
Mike Easter

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Thread

"Linux kernel security needs a rethink" ? Yrrah <Yrrah-aol@aol.invalid> - 2016-09-27 16:28 +0200
  Re: "Linux kernel security needs a rethink" ? jrg <connyank@cox.net> - 2016-09-27 08:25 -0700
  Re: "Linux kernel security needs a rethink" ? Mike Easter <MikeE@ster.invalid> - 2016-09-27 08:43 -0700
    Re: "Linux kernel security needs a rethink" ? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-09-27 15:51 +0000
      Re: "Linux kernel security needs a rethink" ? Mike Easter <MikeE@ster.invalid> - 2016-09-27 09:03 -0700
        Re: "Linux kernel security needs a rethink" ? "J.O. Aho" <user@example.net> - 2016-09-27 18:26 +0200
        Re: "Linux kernel security needs a rethink" ? Mike Easter <MikeE@ster.invalid> - 2016-09-27 09:35 -0700
          Re: "Linux kernel security needs a rethink" ? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-09-27 16:43 +0000
            Re: "Linux kernel security needs a rethink" ? Bud Frede <frede@mouse-potato.com> - 2016-09-28 06:59 -0400
        Re: "Linux kernel security needs a rethink" ? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-09-27 16:42 +0000
          Re: "Linux kernel security needs a rethink" ? Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-09-27 18:53 +0200
            Re: "Linux kernel security needs a rethink" ? stepore <linshine@here.now> - 2016-09-27 21:07 -0700
              Re: "Linux kernel security needs a rethink" ? Bud Frede <frede@mouse-potato.com> - 2016-09-28 07:36 -0400
            Re: "Linux kernel security needs a rethink" ? William Unruh <unruh@invalid.ca> - 2016-09-28 10:28 +0000
        Re: "Linux kernel security needs a rethink" ? Dan Purgert <dan@djph.net> - 2016-09-28 10:55 +0000
    Re: "Linux kernel security needs a rethink" ? Mike Easter <MikeE@ster.invalid> - 2016-09-27 08:53 -0700
      Re: "Linux kernel security needs a rethink" ? Chris Ahlstrom <OFeem1987@teleworm.us> - 2016-09-27 12:39 -0400
    Re: "Linux kernel security needs a rethink" ? Bud Frede <frede@mouse-potato.com> - 2016-09-28 06:56 -0400

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