netdev - Re: [PATCH 2/4] batman-adv: fix kernel crash due to missing NULL checks

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Message-ID: <55CA2605.1070201@meshcoding.com>
Date:	Tue, 11 Aug 2015 18:42:45 +0200
From:	Antonio Quartulli <antonio@...hcoding.com>
To:	David Laight <David.Laight@...LAB.COM>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"b.a.t.m.a.n@...ts.open-mesh.org" <b.a.t.m.a.n@...ts.open-mesh.org>,
	Marek Lindner <mareklindner@...mailbox.ch>
Subject: Re: [PATCH 2/4] batman-adv: fix kernel crash due to missing NULL
 checks

On 05/08/15 15:15, David Laight wrote:
> So is this test just hiding anoter bug somewhere??

Hi David and thanks for your feedback.

The point is that we got several bug reports of kernel crashes due to
NULL pointer deferences in these lines and fter having debugged this
problem for quite a while we preferred to move on and propose this patch.

Still, I am personally debugging this part of the code to understand if
we really have something wrong or if this NULL pointer is something we
should expect (and therefore check).

For the time being we think this patch is better than having horrible
kernel crashes, but I hope to come to a definitive conclusion soon.

Cheers,

-- 
Antonio Quartulli

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