netdev - Re: [PATCH] virtio_net: fix the potential NULL pointer in xmit

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Message-ID: <CAEH94Lg_Oe77BDWhvJ3BZJsu0ZzaDkr5Rq5RO7oVKjJd75VkcQ@mail.gmail.com>
Date:	Fri, 14 Feb 2014 13:25:36 +0800
From:	Zhi Yong Wu <zwu.kernel@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH] virtio_net: fix the potential NULL pointer in xmit_skb()

On Fri, Feb 14, 2014 at 1:12 PM, David Miller <davem@...emloft.net> wrote:
> From: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
> Date: Fri, 14 Feb 2014 12:00:08 +0800
>
>> The pointer hdr isn't assigned before hdr->mhdr and hdr->hdr
>> are used, so it could be one invalid pointer.
>>
>> Signed-off-by: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
>
> sizeof(x) does not evaluate any dereferences made by 'x'
thanks for your explanation.
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-- 
Regards,

Zhi Yong Wu
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