From d644329bc9f10213a282387dfe4984ff891dd768 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 6 Mar 2007 20:26:48 -0800
Subject: [UDP]: Reread uh pointer after pskb_trim

The header may have moved when trimming.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/udp.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'net/ipv4')

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index ce6c46034314..fc620a7c1db4 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1215,6 +1215,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 
 		if (ulen < sizeof(*uh) || pskb_trim_rcsum(skb, ulen))
 			goto short_packet;
+		uh = skb->h.uh;
 
 		udp4_csum_init(skb, uh);
 
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