From: Al Viro <viro@ZenIV.linux.org.uk>
To: Serge Hallyn <serge.hallyn@ubuntu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC] allow some kernel filesystems to be mounted in a user namespace
Date: Tue, 16 Jul 2013 20:38:26 +0100 [thread overview]
Message-ID: <20130716193826.GP4165@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20130716192920.GA8980@sergelap>
On Tue, Jul 16, 2013 at 02:29:20PM -0500, Serge Hallyn wrote:
> All the files will be owned by host root, so there's no security
> concern in allowing this.
Files owned by root != very bad things can't be done by non-root.
Especially for debugfs, which is very much a "don't even think about
mounting that on a production box" thing...
next prev parent reply other threads:[~2013-07-16 19:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-16 19:29 [PATCH RFC] allow some kernel filesystems to be mounted in a user namespace Serge Hallyn
2013-07-16 19:38 ` Al Viro [this message]
2013-07-16 19:50 ` Serge E. Hallyn
2013-07-16 21:33 ` Andy Lutomirski
2013-07-16 21:37 ` Serge E. Hallyn
2013-07-16 21:39 ` Serge E. Hallyn
2013-07-16 21:44 ` Andy Lutomirski
2013-07-16 22:03 ` Serge E. Hallyn
2013-07-16 22:07 ` Andy Lutomirski
2013-07-16 22:23 ` Serge E. Hallyn
2013-07-17 5:43 ` Eric W. Biederman
2013-07-17 12:41 ` Serge Hallyn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130716193826.GP4165@ZenIV.linux.org.uk \
--to=viro@zeniv.linux.org.uk \
--cc=ebiederm@xmission.com \
--cc=linux-kernel@vger.kernel.org \
--cc=serge.hallyn@ubuntu.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox