linux-kernel - Re: [Devel] Re: [patch 05/10] add "permit user mounts in new namespace" clone flag

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Message-ID: <m18xcsl3yc.fsf@ebiederm.dsl.xmission.com>
Date:	Mon, 16 Apr 2007 09:43:55 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	linuxram@...ibm.com, linux-fsdevel@...r.kernel.org,
	viro@....linux.org.uk, containers@...ts.osdl.org,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [Devel] Re: [patch 05/10] add "permit user mounts in new namespace" clone flag

Miklos Szeredi <miklos@...redi.hu> writes:

> That depends.  Current patches check the "unprivileged submounts
> allowed under this mount" flag only on the requested mount and not on
> the propagated mounts.  Do you see a problem with this?

I think privileges of this sort should propagate.  If I read what you
just said correctly if I have a private mount namespace I won't be able
to mount anything unless when it was setup the unprivileged submount
command was explicitly set.

Eric
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