netdev - Re: [PATCH net] net: tg3: fix NULL pointer dereference in tg3_io_error_detected and tg3_io_slot

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Date:	Thu, 15 Aug 2013 13:57:33 +0300
From:	Dmitry Kravkov <dkravkov@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	nsujir@...adcom.com,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	dborkman@...hat.com, shangw@...ux.vnet.ibm.com,
	Michael Chan <mchan@...adcom.com>
Subject: Re: [PATCH net] net: tg3: fix NULL pointer dereference in
 tg3_io_error_detected and tg3_io_slot_reset

On Thu, Aug 15, 2013 at 11:07 AM, David Miller <davem@...emloft.net> wrote:
>
> From: "Nithin Nayak Sujir" <nsujir@...adcom.com>
> Date: Tue, 13 Aug 2013 11:45:13 -0700
>
> > From: Daniel Borkmann <dborkman@...hat.com>
> >
> > Commit d8af4dfd8 ("net/tg3: Fix kernel crash") introduced a possible
> > NULL pointer dereference in tg3 driver when !netdev || !netif_running(netdev)
> > condition is met and netdev is NULL. Then, the jump to the 'done' label
> > calls dev_close() with a netdevice that is NULL. Therefore, only call
> > dev_close() when we have a netdevice, but one that is not running.
> >
> > [ Add the same checks in tg3_io_slot_reset() per Gavin Shan - by Nithin
> > Nayak Sujir ]
> >
> > Reported-by: Dave Jones <davej@...hat.com>
> > Signed-off-by: Daniel Borkmann <dborkman@...hat.com>
> > Cc: Gavin Shan <shangw@...ux.vnet.ibm.com>
> > Cc: Michael Chan <mchan@...adcom.com>
> > Signed-off-by: Nithin Nayak Sujir <nsujir@...adcom.com>
>
> Can I get some reviews from the Broadcom folks?
>
> Thanks.

You already have:
Signed-off-by: Nithin Nayak Sujir <nsujir@...adcom.com>
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