From: Steve Grubb <sgrubb@redhat.com>
To: linux-audit@redhat.com
Cc: Richard Guy Briggs <rgb@redhat.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        LKML <linux-kernel@vger.kernel.org>, Al Viro <viro@zeniv.linux.org.uk>,
        Ingo Molnar <mingo@redhat.com>
Subject: Re: Hundreds of null PATH records for *init_module syscall audit logs
Date: Thu, 09 Mar 2017 08:33:14 -0500
Message-ID: <5936704.Br2IElDqrA@x2>
Organization: Red Hat
In-Reply-To: <20170307160027.GB10258@madcap2.tricolour.ca>
References: <20170301031549.GT18258@madcap2.tricolour.ca> <20170307104139.38f5cd38@gandalf.local.home> <20170307160027.GB10258@madcap2.tricolour.ca>
MIME-Version: 1.0
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="us-ascii"
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1187
Lines: 31

On Tuesday, March 7, 2017 11:00:27 AM EST Richard Guy Briggs wrote:
> On 2017-03-07 10:41, Steven Rostedt wrote:
> > On Mon, 6 Mar 2017 22:39:54 -0500
> > 
> > Richard Guy Briggs <rgb@redhat.com> wrote:
> > > >From the output I've seen, it doesn't look particularly useful, but it
> > > 
> > > was useful to finally see the source of those huge numbers of PATH
> > > 
> > > records.  Here's an fpaste:
> > > 	https://paste.fedoraproject.org/paste/
UpZoYuokojR0es1ayNdx5l5M1UNdIGYhy
> > > 	RLivL9gydE=/> 
> > Those are the files for the module's trace events that are created.
> > 
> > I'm still confused about what the issue is.
> 
> The issue is the audit subsystem being overwhelmed by potentially
> useless information.
> 
> The initial report was "there's a bunch of null PATH records, please
> make them go away", which was anywhere from 500 to 6000 records.
> 
> Once I found out what they generally were and a way to enumerate the
> contents, we're reviewing that assessment to see if they really should
> be tossed, or listed out in full.

They should be tossed. They do not help in any way. What we need for an 
auxiliary record is simply the module's name. That's all.

-Steve