From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Lutomirski Subject: Re: [PATCH v5 0/4] fuse: Add support for mounts from pid/user namespaces Date: Mon, 3 Nov 2014 09:17:58 -0800 Message-ID: References: <1414013060-137148-1-git-send-email-seth.forshee@canonical.com> <20141103171515.GB7554@ubuntu-hedt> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 To: Miklos Szeredi , "Eric W. Biederman" , "Serge H. Hallyn" , Andy Lutomirski , Michael j Theall , fuse-devel@lists.sourceforge.net, "linux-kernel@vger.kernel.org" , Linux FS Devel Return-path: In-Reply-To: <20141103171515.GB7554@ubuntu-hedt> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Mon, Nov 3, 2014 at 9:15 AM, Seth Forshee wrote: > On Wed, Oct 22, 2014 at 04:24:16PM -0500, Seth Forshee wrote: >> Here's another update to the patches to enable userns mounts in fuse. >> The changes this time around center on xattrs and allow_other. I'm >> considering the following patch to be a prerequisite for this series: >> >> http://lkml.kernel.org/g/252a4d87d99fc2b5fe4411c838f65b312c4e13cd.1413330857.git.luto@amacapital.net >> >> With this patch I'm dropping the xattr restrictions from the v4 patches. >> This leaves the situation with xattrs unchanged in init_user_ns. A fuse >> userns mount could still supply xattrs which the user would normally be >> unable to set, but since the mount will be inaccessible outside of that >> userns or its descendants those xattrs will never be seen by the host. >> >> I'm also in agreement with Andy that some decision regarding this patch >> should be made before merging the fuse userns support as well: >> >> http://lkml.kernel.org/g/2686c32f00b14148379e8cfee9c028c794d4aa1a.1407974494.git.luto@amacapital.net >> >> Changes since v4: >> - Drop patch to restrict xattrs >> - Update allow_other to restrict based on userns of current rather than >> uid/gid > > Miklos, Eric - Any feedback from either of you on these patches? > [off-list to avoid further clutter] Eric's moving, I think, and will be mostly unavailable for a week or two. --Andy > Thanks, > Seth -- Andy Lutomirski AMA Capital Management, LLC