From: Gao feng <gaofeng@cn•fujitsu.com>
To: "Eric W. Biederman" <ebiederm@xmission•com>
Cc: netdev@vger•kernel.org, systemd-devel@lists•freedesktop.org,
lxc-devel@lists•sourceforge.net, davem@davemloft•net,
Linux Containers <containers@lists•linux-foundation.org>,
"libvir-list@redhat•com" <libvir-list@redhat•com>
Subject: Re: [PATCH] netns: unix: only allow to find out unix socket in same net namespace
Date: Thu, 22 Aug 2013 09:36:35 +0800 [thread overview]
Message-ID: <52156B23.7050208@cn.fujitsu.com> (raw)
In-Reply-To: <87haejtjet.fsf@xmission.com>
On 08/21/2013 06:42 PM, Eric W. Biederman wrote:
> Gao feng <gaofeng@cn•fujitsu.com> writes:
>
>> right now I only take note of the unix socket /run/systemd/private,
>> but there may have many similar unix sockets, they can exist in any
>> path. the strange problems will still happen.
>
> It could just as easily have been a fifo in the filesystem, and the
> result would have been the same.
>
> The network namespace are all about communicating between network
> namespaces and that is what was allowed here.
>
> If you don't want a socket or a fifo or any other file to be used by a
> container don't give it access to it. It really is that simple.
>
Hmm, I tend to think you are right...
Thanks!
prev parent reply other threads:[~2013-08-22 2:20 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-21 4:31 [PATCH] netns: unix: only allow to find out unix socket in same net namespace Gao feng
[not found] ` <1377059473-25526-1-git-send-email-gaofeng-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2013-08-21 4:58 ` Gao feng
2013-08-21 5:30 ` Eric W. Biederman
[not found] ` <87d2p7vcdx.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2013-08-21 6:54 ` Gao feng
[not found] ` <5214641C.9030902-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2013-08-21 7:06 ` Eric W. Biederman
2013-08-21 7:22 ` Gao feng
[not found] ` <52146AC2.5070409-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2013-08-21 9:51 ` [systemd-devel] " Kay Sievers
[not found] ` <CAPXgP120YUEVnFiD0uPnqeO4x=5oRvHL79-cX5CnmEWc3d5mvQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-21 9:56 ` Daniel P. Berrange
2013-08-25 17:16 ` James Bottomley
2013-08-25 17:37 ` Kay Sievers
[not found] ` <CAPXgP115pEE8jxyCqauoMRWui3Qb0fBzPr9L2_SA411=gfnX3w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-25 18:16 ` James Bottomley
2013-08-26 1:06 ` Gao feng
[not found] ` <521AAA23.9050604-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2013-08-26 3:19 ` James Bottomley
2013-08-26 3:35 ` Gao feng
[not found] ` <521ACCEF.4050101-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2013-08-26 3:53 ` James Bottomley
2013-08-26 13:53 ` Serge Hallyn
2013-08-21 10:42 ` Eric W. Biederman
2013-08-22 1:36 ` Gao feng [this message]
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