linux-kernel - Re: [PATCH] security: allow Yama to be unconditionally stacked

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Date:	Wed, 05 Sep 2012 12:47:19 -0700
From:	John Johansen <john.johansen@...onical.com>
To:	Eric Paris <eparis@...isplace.org>
CC:	Serge Hallyn <serge.hallyn@...onical.com>,
	Kees Cook <keescook@...omium.org>,
	linux-kernel@...r.kernel.org,
	James Morris <james.l.morris@...cle.com>,
	Eric Paris <eparis@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Al Viro <viro@...iv.linux.org.uk>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH] security: allow Yama to be unconditionally stacked

On 09/05/2012 11:32 AM, Eric Paris wrote:
> On Wed, Sep 5, 2012 at 11:47 AM, Serge Hallyn
> <serge.hallyn@...onical.com> wrote:
>> Quoting Kees Cook (keescook@...omium.org):
>>> Unconditionally call Yama when CONFIG_SECURITY_YAMA_STACKED is selected,
>>> no matter what LSM module is primary.
>>>
>>> Ubuntu and Chrome OS already carry patches to do this, and Fedora
>>> has voiced interest in doing this as well. Instead of having multiple
>>> distributions (or LSM authors) carrying these patches, just allow Yama
>>> to be called unconditionally when selected by the new CONFIG.
>>
>> I don't really like having both the STACKED and non-stacked paths. But
>> I don't have a good alternative.
>>
>>> Signed-off-by: Kees Cook <keescook@...omium.org>
>>
>> Acked-by: Serge E. Hallyn <serge.hallyn@...onical.com>
> 
> I said basically the same thing to Kees off list.  But I don't have an
> answer either.
> 
> Acked-by: Eric Paris <eparis@...hat.com>
> 
Yeah I'm not fond of it either but until some more generic form of LSM
stacking arives, I don't see a good alternative either

so until then

Acked-by: John Johansen <john.johansen@...onical.com>

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