From: Simo Sorce <ssorce@redhat.com>
To: Tejun Heo <tj@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>,
David Miller <davem@davemloft.net>,
Vivek Goyal <vgoyal@redhat.com>, Daniel Walsh <dwalsh@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
lpoetter@redhat.com, cgroups@vger.kernel.org, kay@redhat.com,
Network Development <netdev@vger.kernel.org>
Subject: Re: [PATCH 2/2] net: Implement SO_PASSCGROUP to enable passing cgroup path
Date: Wed, 16 Apr 2014 12:54:01 -0400 [thread overview]
Message-ID: <1397667241.19767.434.camel@willson.li.ssimo.org> (raw)
In-Reply-To: <20140416162149.GI1257@htj.dyndns.org>
On Wed, 2014-04-16 at 12:21 -0400, Tejun Heo wrote:
> Hello,
>
> On Wed, Apr 16, 2014 at 12:13:57PM -0400, Simo Sorce wrote:
> > The only one that *may* be reasonable is the "secret" cgroup name one,
> > however nobody seem to come up with a reason why it is legitimate to
> > allow to keep cgroup names secret.
>
> Ugh, please don't play security games with cgroup names. It is one of
> the identifying properties of a task, like a pid, and will be used in
> other parts of the kernel to match groups of tasks. If we play
> security peekaboo with cgroup names, it has to be transitive and puts
> burdens on all its future uses. Unless there are *REALLY* strong
> rationales, which can also justify hiding pids, this isn't happening.
FWIW, I totally agree with you, it's Andy Lutomirski that is coming up
with this "secret" cgropus name idea, nobody else (so far) seem to agree
it makes sense.
Simo.
next prev parent reply other threads:[~2014-04-16 16:54 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-15 21:15 [PATCH 0/2] net: Implement SO_PEERCGROUP and SO_PASSCGROUP socket options Vivek Goyal
2014-04-15 21:15 ` [PATCH 1/2] net: Implement SO_PEERCGROUP Vivek Goyal
2014-04-15 21:54 ` Andy Lutomirski
2014-04-16 0:22 ` Vivek Goyal
2014-04-15 21:15 ` [PATCH 2/2] net: Implement SO_PASSCGROUP to enable passing cgroup path Vivek Goyal
2014-04-15 21:53 ` Andy Lutomirski
2014-04-15 23:09 ` Simo Sorce
2014-04-16 0:20 ` Vivek Goyal
2014-04-16 1:05 ` David Miller
2014-04-16 3:47 ` Andy Lutomirski
2014-04-16 10:17 ` Vivek Goyal
2014-04-16 14:34 ` Andy Lutomirski
2014-04-16 15:10 ` Vivek Goyal
2014-04-16 12:57 ` David Miller
2014-04-16 14:37 ` Andy Lutomirski
2014-04-16 16:13 ` Simo Sorce
2014-04-16 16:21 ` Tejun Heo
2014-04-16 16:54 ` Simo Sorce [this message]
2014-04-16 16:31 ` Andy Lutomirski
2014-04-16 17:02 ` Simo Sorce
2014-04-16 17:29 ` Andy Lutomirski
2014-04-16 17:34 ` Simo Sorce
2014-04-16 17:53 ` Andy Lutomirski
2014-04-16 18:36 ` Vivek Goyal
2014-04-16 18:40 ` Andy Lutomirski
2014-04-16 18:51 ` Vivek Goyal
2014-04-16 18:59 ` Andy Lutomirski
2014-04-16 18:06 ` Vivek Goyal
2014-04-16 18:13 ` Andy Lutomirski
2014-04-16 18:25 ` Vivek Goyal
2014-04-16 18:35 ` Andy Lutomirski
2014-04-16 19:06 ` Vivek Goyal
2014-04-16 19:13 ` Andy Lutomirski
2014-04-16 19:39 ` Vivek Goyal
2014-04-16 20:24 ` Andy Lutomirski
2014-04-17 13:41 ` Vivek Goyal
2014-04-16 18:59 ` Vivek Goyal
2014-04-17 15:41 ` Daniel J Walsh
2014-04-17 16:04 ` Simo Sorce
2014-04-17 16:11 ` Andy Lutomirski
2014-04-17 16:24 ` Simo Sorce
2014-04-17 16:37 ` Andy Lutomirski
2014-04-17 16:48 ` Simo Sorce
2014-04-17 16:55 ` Andy Lutomirski
2014-04-17 17:12 ` Vivek Goyal
2014-04-17 17:26 ` Andy Lutomirski
2014-04-17 17:33 ` Simo Sorce
2014-04-17 17:35 ` Andy Lutomirski
2014-04-17 17:47 ` Simo Sorce
2014-04-17 18:05 ` Andy Lutomirski
2014-04-17 18:23 ` Simo Sorce
2014-04-17 18:33 ` Andy Lutomirski
2014-04-17 18:50 ` Vivek Goyal
2014-04-17 18:57 ` Vivek Goyal
2014-04-17 19:06 ` Andy Lutomirski
2014-04-17 19:15 ` Simo Sorce
2014-04-17 19:19 ` Andy Lutomirski
2014-04-17 19:10 ` Simo Sorce
2014-04-17 19:16 ` Vivek Goyal
2014-04-17 19:46 ` Andy Lutomirski
2014-04-21 15:03 ` Vivek Goyal
2014-04-21 15:47 ` Andy Lutomirski
2014-04-23 15:07 ` Vivek Goyal
2014-04-23 15:37 ` Andy Lutomirski
2014-04-23 16:01 ` Vivek Goyal
2014-04-17 19:23 ` Andy Lutomirski
2014-04-17 17:52 ` Simo Sorce
2014-04-17 18:04 ` Andy Lutomirski
2014-04-17 18:31 ` Simo Sorce
2014-04-17 16:38 ` Vivek Goyal
2014-04-17 16:05 ` Andy Lutomirski
2014-04-17 16:12 ` Vivek Goyal
2014-04-23 16:45 ` Vivek Goyal
2014-04-23 17:29 ` David Miller
2014-04-24 20:34 ` Vivek Goyal
2014-04-24 20:48 ` David Miller
2014-04-24 21:04 ` Vivek Goyal
2014-04-24 21:11 ` David Miller
2014-04-25 0:29 ` Simo Sorce
2014-04-22 20:05 ` [PATCH 0/2] net: Implement SO_PEERCGROUP and SO_PASSCGROUP socket options David Miller
2014-04-22 20:08 ` Andy Lutomirski
2014-04-22 20:29 ` David Miller
2014-04-22 20:31 ` Andy Lutomirski
2014-04-22 20:32 ` David Miller
2014-04-23 0:37 ` Andy Lutomirski
2014-04-23 19:05 ` Vivek Goyal
2014-04-23 20:53 ` Daniel J Walsh
2014-04-24 13:01 ` Vivek Goyal
2014-04-23 15:55 ` Vivek Goyal
2014-04-23 16:16 ` Vivek Goyal
2014-04-23 17:21 ` Andy Lutomirski
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