Re: [PATCH 1/5] fs: Verify access of user towards block device file when mounting

From: Jan Kara
Date: Thu Oct 01 2015 - 19:07:14 EST


On Thu 01-10-15 10:55:50, Eric W. Biederman wrote:
> The goal if possible is to run things like docker without needed to be
> root or even more fun to run docker in a container, and in general
> enable nested containers.

Frankly at the filesystem side we are rather far from being able to safely
mount untrusted device and I don't think we'll ever be robust enough to
tolerate e.g. user changing the disk while fs is using it. So would this be
FUSE-only thing or is someone still hoping that general purpose filesystems
will be robust enough in future?

Honza
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR
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