Re: Strange AVC with latest rawhide kernel.

[Stephen Smalley <sds@tycho.nsa.gov>]

On 02/26/2016 10:46 AM, Paul Moore wrote:
> On Fri, Feb 26, 2016 at 7:54 AM, Daniel J Walsh <dwalsh@redhat.com> wrote:
>> On Thu, 2016-02-25 at 15:54 -0500, Stephen Smalley wrote:
>>> On 02/25/2016 03:28 PM, Daniel J Walsh wrote:
>>>> Currently typebounds only allows one instance.
>>> It is a hierarchy, where each child has a single parent.  So you can
>>> define hierarchies like:
>>> typebounds unconfined_t docker_t;
>>> typebounds docker_t svirt_lxc_net_t;
>>> and then they can both transition because they are both ancestors.
>>
>> Awesome idea.
>
> Would that resolve all your problems Dan with Docker, runc, etc.?
>>From our discussions the other day I thought you needed the ability to
> transition to svirt_lxc_net_t from domains other than unconfined_t and
> docker_t ... or was I misunderstanding you?
>

Note that it is only exec-based transitions that are affected by 
NO_NEW_PRIVS, so one can always leverage dynamic transitions (i.e. 
setcon) without requiring typebounds.