linux-kernel - Re: regression in 4.14-rc2 caused by apparmor: add base infastructure for socket mediation

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Message-ID: <e6c9af5c-ca42-ee35-5cc0-1a3ba80144b9@canonical.com>
Date:   Mon, 2 Oct 2017 21:11:52 -0700
From:   John Johansen <john.johansen@...onical.com>
To:     James Bottomley <James.Bottomley@...senPartnership.com>,
        Seth Arnold <seth.arnold@...onical.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: regression in 4.14-rc2 caused by apparmor: add base infastructure
 for socket mediation

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

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