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From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: John Johansen <john.johansen@canonical.com>,
	Seth Arnold <seth.arnold@canonical.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: regression in 4.14-rc2 caused by apparmor: add base infastructure for socket mediation
Date: Mon, 02 Oct 2017 22:15:07 -0700	[thread overview]
Message-ID: <1507007707.3082.16.camel@HansenPartnership.com> (raw)
In-Reply-To: <e6c9af5c-ca42-ee35-5cc0-1a3ba80144b9@canonical.com>

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
> 
> https://bugzilla.opensuse.org/show_bug.cgi?id=1061195

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.

James

  reply	other threads:[~2017-10-03  5:15 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-03  4:02 regression in 4.14-rc2 caused by apparmor: add base infastructure for socket mediation James Bottomley
2017-10-03  4:11 ` John Johansen
2017-10-03  5:15   ` James Bottomley [this message]
2017-10-03  6:32     ` John Johansen
2017-10-03  6:48     ` Vlastimil Babka
2017-10-03  7:17       ` John Johansen
2017-10-24  6:39         ` Thorsten Leemhuis
2017-10-24 11:03           ` James Bottomley
2017-10-24 11:57             ` John Johansen
2017-10-26 17:36               ` Linus Torvalds
2017-10-26 18:54                 ` James Morris
2017-10-26 19:02                   ` Linus Torvalds
2017-10-26 19:06                     ` James Morris
2017-10-26 20:08                       ` John Johansen
2017-10-26 19:59                 ` John Johansen
2017-10-24 15:19             ` Vlastimil Babka
2017-10-24 11:31           ` John Johansen
2017-10-26  9:11             ` Thorsten Leemhuis
2017-10-26 18:13               ` Linus Torvalds

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