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centosplus patch [bug#16521]
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commit 8d65b1190ddc548b0411477f308d04f4595bac57
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Author: Duan Jiong <duanj.fnst@cn.fujitsu.com>
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Date:   Fri Sep 20 18:21:25 2013 +0800
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    net: raw: do not report ICMP redirects to user space
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    Redirect isn't an error condition, it should leave
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    the error handler without touching the socket.
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    Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
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    Signed-off-by: David S. Miller <davem@davemloft.net>
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    Applied-by: Akemi Yagi <toracat@centos.org>
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diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
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index bfec521..193db03 100644
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--- a/net/ipv4/raw.c
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+++ b/net/ipv4/raw.c
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@@ -218,8 +218,10 @@ static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info)
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 	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED)
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 		ipv4_sk_update_pmtu(skb, sk, info);
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-	else if (type == ICMP_REDIRECT)
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+	else if (type == ICMP_REDIRECT) {
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 		ipv4_sk_redirect(skb, sk);
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+		return;
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+	}
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 	/* Report error on raw socket, if:
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 	   1. User requested ip_recverr.
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diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
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index 58916bb..a4ed241 100644
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--- a/net/ipv6/raw.c
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+++ b/net/ipv6/raw.c
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@@ -335,8 +335,10 @@ static void rawv6_err(struct sock *sk, struct sk_buff *skb,
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 		ip6_sk_update_pmtu(skb, sk, info);
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 		harderr = (np->pmtudisc == IPV6_PMTUDISC_DO);
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 	}
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-	if (type == NDISC_REDIRECT)
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+	if (type == NDISC_REDIRECT) {
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 		ip6_sk_redirect(skb, sk);
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+		return;
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+	}
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 	if (np->recverr) {
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 		u8 *payload = skb->data;
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 		if (!inet->hdrincl)