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SubjectRe: regression in 4.14-rc2 caused by apparmor: add base infastructure for socket mediation
On Mon, 2017-10-02 at 21:11 -0700, John Johansen wrote:
> On 10/02/2017 09:02 PM, James Bottomley wrote:
> >
> > The specific problem is that dnsmasq refuses to start on openSUSE
> > Leap 42.2.  The specific cause is that and attempt to open a
> > PF_LOCAL socket gets EACCES.  This means that networking doesn't
> > function on a system with a 4.14-rc2 system.
> >
> > Reverting commit 651e28c5537abb39076d3949fb7618536f1d242e
> > (apparmor: add base infastructure for socket mediation) causes the
> > system to function again.
> >
> This is not a kernel regression,

Regression means something that worked in a previous version of the
kernel which is broken now. This problem falls within that definition.

> it is because  opensuse dnsmasque is starting with policy that
> doesn't allow access to PF_LOCAL socket

Because there was no co-ordination between their version of the patch
and yours.  If you're sending in patches that you know might break
systems because they need a co-ordinated rollout of something in
userspace then it would be nice if you could co-ordinate it ...

Doing it in the merge window and not in -rc2 would also be helpful
because I have more expectation of a userspace mismatch from stuff in
the merge window.

> Christian Boltz the opensuse apparmor maintainer has been working
> on a policy update for opensuse see bug

Well, that looks really encouraging: The line about "To give you an
impression what "lots of" means - I had to adjust 40 profiles on my
laptop".  The upshot being apart from a bandaid, openSUSE still has no
co-ordinated fix for this.


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