linux-kernel - Re: Hundreds of null PATH records for *init

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Message-ID: <20170307160027.GB10258@madcap2.tricolour.ca>
Date:   Tue, 7 Mar 2017 11:00:27 -0500
From:   Richard Guy Briggs <rgb@...hat.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Paul Moore <paul@...l-moore.com>,
        Linux-Audit Mailing List <linux-audit@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>
Subject: Re: Hundreds of null PATH records for *init_module syscall audit logs

On 2017-03-07 10:41, Steven Rostedt wrote:
> On Mon, 6 Mar 2017 22:39:54 -0500
> Richard Guy Briggs <rgb@...hat.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/UpZoYuokojR0es1ayNdx5l5M1UNdIGYhyRLivL9gydE=/
> 
> 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.

> -- Steve

- RGB

--
Richard Guy Briggs <rgb@...hat.com>
Kernel Security Engineering, Base Operating Systems, Red Hat
Remote, Ottawa, Canada
Voice: +1.647.777.2635, Internal: (81) 32635