From: Jeff Dike <jdike@addtoit.com>
To: Robin Green <greenrd@greenrd.org>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] More security questions (was: Module exploits into the host?)
Date: Mon, 08 Mar 2004 16:33:42 -0500 [thread overview]
Message-ID: <200403082133.i28LXgVa022876@ccure.user-mode-linux.org> (raw)
In-Reply-To: Your message of "Wed, 03 Mar 2004 23:14:01 GMT." <20040303231401.GM14069@localhost.localdomain>
greenrd@greenrd.org said:
> 1. Has the lcall vulnerability been fixed? By a change in the mainline
> kernel?
No. It's easy enough to do - I just haven't got around to it yet.
> 2. I read on some mailing list (not this one) that in tt mode,
> processes within a UML instance can read and write to each other's
> memory!
Yes, they can do that through the UML kernel memory, which is mapped writeable
into each process.
This is impossible in skas mode.
Jeff
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next prev parent reply other threads:[~2004-03-08 21:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-03 20:09 [uml-devel] Module exploits into the host? Robin Green
2004-03-03 21:29 ` Henrik Nordstrom
2004-03-03 23:14 ` [uml-devel] More security questions (was: Module exploits into the host?) Robin Green
2004-03-07 11:06 ` BlaisorBlade
2004-03-08 21:33 ` Jeff Dike [this message]
2004-03-09 23:21 ` Robin Green
2004-03-04 9:36 ` [uml-devel] Module exploits into the host? Cameron Patrick
2004-03-04 10:19 ` Peter
2004-03-04 19:45 ` [uml-devel] CFP workshop on UML Security (was: Module exploits into the host?) Goetz Bock
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