[UDP]: Reread uh pointer after pskb_trim · d644329bc9 - Gogs

[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>

Herbert Xu 18 years ago

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ba5dcee128

commit

d644329bc9

1 changed files with 1 additions and 0 deletions

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							+ 1
							
							- 0
						
net/ipv4/udp.c
							 
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				@@ -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);