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From: Matteo Riondato <rionda@riondato.com>
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Date: Mon, 02 Aug 2004 14:18:49 +0200
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Subject: Re: cvs commit: src/sys/alpha/alpha mem.c src/sys/alpha/confmem.c
	memdev.h	src/sys/conf NOTES files files.alpha files.amd64 ...
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Il Lun, 2004-08-02 alle 14:14, Dag-Erling Sm=F8rgrav ha scritto:
> Matteo Riondato <rionda@riondato.com> writes:
> > Dag-Erling Sm=F8rgrav wrote:
> > > The other good news of course is that it is now possible to build a
> > > kernel that does not have /dev/mem and /dev/io - that's pretty
> > > significant from a security point of view.  Thanks!
> > Can you please explain why it's signficant?
>=20
> /dev/mem and /dev/io are back doors to a system's memory and hardware,
> which allow you to bypass all error and credential checks once you've
> gained access to them.
> [SNIP]

Thanks, You were really clear.
Best Regards
--=20
Rionda aka Matteo Riondato
GUFI Staff Member (http://www.gufi.org)
BSD-FAQ-it Main Developer (http://www.gufi.org/~rionda)
FreeSBIE BugMeister (http://www.freesbie.org)
GPG key at: http://www.riondabsd.net/riondagpg.asc
Sent from: kaiser.sig11.org running FreeBSD-5.2-CURRENT

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