Re: [PATCH v4 0/4] Introduce security_create_user_ns()

[Paul Moore]

On Tue, Aug 9, 2022 at 5:41 PM Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:
> Paul Moore <paul@xxxxxxxxxxxxxx> writes:
> >
> > What level of due diligence would satisfy you Eric?
>
> Having a real conversation about what a change is doing and to talk
> about it's merits and it's pro's and cons.  I can't promise I would be
> convinced but that is the kind of conversation it would take.

Earlier today you talked about due diligence to ensure that userspace
won't break and I provided my reasoning on why userspace would not
break (at least not because of this change).  Userspace might be
blocked from creating a new user namespace due to a security policy,
but that would be the expected and desired outcome, not breakage.  As
far as your most recent comment regarding merit and pros/cons, I
believe we have had that discussion (quite a few times already); it
just seems you are not satisfied with the majority's conclusion.

Personally, I'm not sure there is anything more I can do to convince
you that this patchset is reasonable; I'm going to leave it to others
at this point, or we can all simply agree to disagree for the moment.
Just as you haven't heard a compelling argument for this patchset, I
haven't heard a compelling argument against it.  Barring some
significant new discussion point, or opinion, I still plan on merging
this into the LSM next branch when the merge window closes next week
so it has time to go through a full round of linux-next testing.
Assuming no unresolvable problems are found during the additional
testing I plan to send it to Linus during the v6.1 merge window and
I'm guessing we will get to go through this all again.  It's less than
ideal, but I think this is where we are at right now.

-- 
paul-moore.com