Re: user namespace and fully visible proc and sys mounts

[Eric W. Biederman]

Andy Lutomirski <luto@xxxxxxxxxxxxxx> writes:

> On Mon, Mar 7, 2016 at 4:07 PM, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:
>> Andy Lutomirski <luto@xxxxxxxxxxxxxx> writes:
>>
>>> On a related note, can we *please* find a way to constrain namespace
>>> creation in a way that might satisfy the RHEL crowd?
>>
>> I am not certain to what you are referrring.
>>
>> As long as folks are willing to work with me I am happy to help design
>> and design something that makes things better for everyone.  If someone
>> pushes hard, suggestes crappy patches, and does not listen to
>> constructive feedback I will shoot their patches down (especially when I
>> am sick and tired as I have been more than I would like this development
>> cycle).
>
> I think we should add some mechanism that will allow the right to
> create various namespaces to be constrained in a useful and usable
> manner.  I'll start a new thread.

On the general principle that there is more attack surface, and attack
surface reduction is generally good I agree.  I will await your follow
on thread when you are ready.

Eric