linux-kernel - Re: [patch 0/8] unprivileged mount syscall

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Message-Id: <1176195125.3476.47.camel@raven.themaw.net>
Date:	Tue, 10 Apr 2007 16:52:05 +0800
From:	Ian Kent <raven@...maw.net>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-fsdevel@...r.kernel.org, util-linux-ng@...r.kernel.org,
	containers@...ts.osdl.org, linux-kernel@...r.kernel.org
Subject: Re: [patch 0/8] unprivileged mount syscall

On Fri, 2007-04-06 at 16:16 -0700, H. Peter Anvin wrote:
> >>
> >> - users can use bind mounts without having to pre-configure them in
> >>   /etc/fstab
> >>
> 
> This is by far the biggest concern I see.  I think the security 
> implication of allowing anyone to do bind mounts are poorly understood.

And especially so since there is no way for a filesystem module to veto
such requests.

Ian


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