From: Robin Holt <holt@sgi.com>
To: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>,
"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: gianfar.c null pointer deref in gfar_start_xmit().
Date: Tue, 9 Aug 2011 01:54:07 -0500 [thread overview]
Message-ID: <20110809065407.GF3709@sgi.com> (raw)
In-Reply-To: <20110803024438.GH4926@sgi.com>
On Tue, Aug 02, 2011 at 09:44:38PM -0500, Robin Holt wrote:
>
> While using the v3.0 kernel on a Freescale P1010RDB with 3 minor patches
> (None which affect gianfar.c), I get a NULL pointer deref at:
>
> static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
> {
> ...
> regs = tx_queue->grp->regs;
>
> I put a BUG_ON(tx_queue->grp) just before this line and it did trip.
> I have not looked at this any more than that.
>
> Any suggestions would be welcome. To reproduce, all I need to do is
> a few sequences of pings.
I was able to reproduce this with the net-next-2.6 kernel as well.
Robin
next prev parent reply other threads:[~2011-08-09 6:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-03 2:44 gianfar.c null pointer deref in gfar_start_xmit() Robin Holt
2011-08-09 6:54 ` Robin Holt [this message]
2011-08-09 7:10 ` Eric Dumazet
2011-08-09 13:06 ` Robin Holt
2011-08-10 6:01 ` Eric Dumazet
2011-08-10 9:32 ` Robin Holt
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