From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] [2.6.22] Fix a potential NULL pointer dereference in free_shared_mem() in drivers/net/s2io.c Date: Mon, 16 Jul 2007 17:56:24 -0400 Message-ID: <469BE988.6090907@pobox.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, akpm@linux-foundation.org To: Micah Gruber Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:36946 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761795AbXGPV42 (ORCPT ); Mon, 16 Jul 2007 17:56:28 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Micah Gruber wrote: > This patch fixes a potential null dereference bug where we dereference > nic before a null check. This patch simply moves the dereferencing > after the null check. > > Signed-off-by: Micah Gruber < micah.gruber@gmail.com> > > --- a/drivers/net/s2io.c > +++ b/drivers/net/s2io.c > @@ -789,12 +789,14 @@ > struct mac_info *mac_control; > struct config_param *config; > int lst_size, lst_per_page; > - struct net_device *dev = nic->dev; > + struct net_device *dev; > int page_num = 0; > > if (!nic) > return; > > + dev = nic->dev; > + applied manually -- all of your patch attempts produced corrupted patches :/