linux-kernel - Re: sparc oops in ip_fast

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Message-Id: <20080105.231524.204142940.davem@davemloft.net>
Date:	Sat, 05 Jan 2008 23:15:24 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	viro@...IV.linux.org.uk, m.kozlowski@...land.pl,
	sparclinux@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: sparc oops in ip_fast_csum

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Sun, 06 Jan 2008 11:22:04 +1100

> [IPV4] raw: Strengthen check on validity of iph->ihl 
> 
> We currently check that iph->ihl is bounded by the real length and that
> the real length is greater than the minimum IP header length.  However,
> we did not check the caes where iph->ihl is less than the minimum IP
> header length.
> 
> This breaks because some ip_fast_csum implementations assume that which
> is quite reasonable.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied, I'll push this to -stable too, thanks Herbert.
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