netdev - Re: 2.6.20 crash in tcp_tso

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Message-ID: <20070213215158.GA29814@gondor.apana.org.au>
Date:	Wed, 14 Feb 2007 08:51:58 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	kaber@...sh.net, maccetta@...relnetworks.com,
	netdev@...r.kernel.org
Subject: Re: 2.6.20 crash in tcp_tso_segment()

On Tue, Feb 13, 2007 at 12:34:13PM -0800, David Miller wrote:
>
> I'm kind of challenged for time as I'll be out of town from
> Wednesday until Sunday, so if someone could cook up the TSO
> variable of the patch for pre-GSO kernels I'd appreciate it.

Sure, here is the patch for any kernel prior to 2.6.18.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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--
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 0bba3c2..ff396c4 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -148,6 +148,9 @@ static void send_reset(struct sk_buff *oldskb, int hook)
 	nf_reset(nskb);
 	nskb->nfmark = 0;
 
+	skb_shinfo(nskb)->tso_size = 0;
+	skb_shinfo(nskb)->tso_segs = 0;
+
 	tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl);
 
 	/* Swap source and dest */
-
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