netdev - Re: [PATCH net] tcp: fix crashes in do_tcp

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Message-Id: <20121201.204115.1249972818143982491.davem@davemloft.net>
Date:	Sat, 01 Dec 2012 20:41:15 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	w@....eu, netdev@...r.kernel.org
Subject: Re: [PATCH net] tcp: fix crashes in do_tcp_sendpages()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 01 Dec 2012 15:07:02 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Recent network changes allowed high order pages being used
> for skb fragments.
> 
> This uncovered a bug in do_tcp_sendpages() which was assuming its caller
> provided an array of order-0 page pointers.
> 
> We only have to deal with a single page in this function, and its order
> is irrelevant.
> 
> Reported-by: Willy Tarreau <w@....eu>
> Tested-by: Willy Tarreau <w@....eu>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks Eric.
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