netdev - Re: [V2 PATCH] net: sock: validate data_len before allocating skb in sock_alloc_send

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Message-ID: <4FC83277.2090301@redhat.com>
Date:	Fri, 01 Jun 2012 11:09:43 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	David Miller <davem@...emloft.net>
CC:	netdev@...r.kernel.org, edumazet@...gle.com, mst@...hat.com,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [V2 PATCH] net: sock: validate data_len before allocating skb
 in sock_alloc_send_pskb()

On 06/01/2012 06:21 AM, David Miller wrote:
> From: Jason Wang<jasowang@...hat.com>
> Date: Thu, 31 May 2012 15:18:10 +0800
>
>> We need to validate the number of pages consumed by data_len, otherwise frags
>> array could be overflowed by userspace. So this patch validate data_len and
>> return -EMSGSIZE when data_len may occupies more frags than MAX_SKB_FRAGS.
>>
>> Signed-off-by: Jason Wang<jasowang@...hat.com>
> Applied and queued up for -stable.
>
> Please do not add explicit stable CC:'s to networking patches, I queue
> appropriate changes up myself, and submit them only when I feel that
> the change has had sufficient exposure and testing in Linus's tree.

Sure, would pay attention next time.
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