Commit d644329b authored by Herbert Xu's avatar Herbert Xu Committed by David S. Miller
Browse files

[UDP]: Reread uh pointer after pskb_trim 



The header may have moved when trimming.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ba5dcee1

net/ipv4/udp.c

+1 −0
Original line number Diff line number Diff line
@@ -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);