From: Blaisorblade <blaisorblade@yahoo.it>
To: Sylvain Beucler <beuc@beuc.net>,
Antoine Martin <antoine@nagafix.co.uk>,
Christopher Aker <caker@theshore.net>,
user-mode-linux-devel@lists.sourceforge.net
Cc: Jeff Dike <jdike@addtoit.com>
Subject: Re: [uml-devel] [uml-user] [PATCH] uml hostfs: fix interaction between hostfs=path1 and -o path2 at mount time (was: Re: hostfs kernel parameter fail?)
Date: Sun, 4 Mar 2007 19:50:36 +0100 [thread overview]
Message-ID: <200703041950.36776.blaisorblade@yahoo.it> (raw)
In-Reply-To: <20070304165030.GB6516@localhost.localdomain>
On Sunday 04 March 2007 17:50, Sylvain Beucler wrote:
> On Sat, Mar 03, 2007 at 07:32:46PM +0100, Blaisorblade wrote:
> Hi,
>
> I tested and it works.
>
> Thanks,
You'll probably also see that -o .. allows bypassing the 'hostfs jail', and
I've just implemented a fix to that. The question is whether this should be
merged.
Indeed, the root user inside UML can bypass that anyway, if he modifies the
hostfs module, compiles and loads it. So the host admin really needs to run
UML in a chroot if he needs real security.
What do you all think?
--
Inform me of my mistakes, so I can add them to my list!
Paolo Giarrusso, aka Blaisorblade
http://www.user-mode-linux.org/~blaisorblade
Chiacchiera con i tuoi amici in tempo reale!
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next parent reply other threads:[~2007-03-04 19:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070301230442.GA469@localhost.localdomain>
[not found] ` <200703031932.46323.blaisorblade@yahoo.it>
[not found] ` <20070304165030.GB6516@localhost.localdomain>
2007-03-04 18:50 ` Blaisorblade [this message]
2007-03-04 22:53 ` [uml-devel] [uml-user] [PATCH] uml hostfs: fix interaction between hostfs=path1 and -o path2 at mount time Antoine Martin
2007-03-05 18:29 ` Blaisorblade
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