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authorHerbert Xu <herbert@gondor.apana.org.au>2007-03-07 18:50:54 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2007-03-13 11:26:47 -0700
commit83d8af5f4226c3ab9156cbb77d5b079b65f31f19 (patch)
treea86ac19f0d55ad0aa52d98cd7b5faf9404bb5562
parentd9577efca33ece3024f337fd38c1f8ea5ee0acf0 (diff)
Fix UDP header pointer after pskb_trim_rcsum()
[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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--net/ipv4/udp.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cfff930f2baf..f8068b06a261 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1214,6 +1214,7 @@ 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);