linux-kernel - Re: /proc/[pid]/mem write implications

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Message-ID: <20120129142117.1ddd8616@pyramind.ukuu.org.uk>
Date:	Sun, 29 Jan 2012 14:21:17 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bryan Jacobs <its@...ytoremember.us>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: /proc/[pid]/mem write implications

> Now, let's say this VM has a function for opening a file in the local
> filesystem. It outsources permissions checking to the host system; any
> file which the user launching the VM could read or write, the VM could
> also.

If your vm allows opening arbitary special files you already lost.

Alan
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