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From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH] private mounts
Date: Tue, 26 Apr 2005 11:04:12 +0100
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On Tue, Apr 26, 2005 at 03:00:10AM -0700, Andrew Morton wrote:
> Not as thick as mine!  Could someone please explain in small words what's
> wrong with an suid mount helper?

Nothing per-se.  What makes it bad is the contect of a userland filesystem
where the actual filesystem operations in the mounted filesystem happen
in contect of a non-privilegued user.