[7/7] Xen VMM #3: handle fragemented skbs correctly in icmp_filter

[Ian Pratt]

[NB: This patch has already been accepted by Dave Miller. I'm
only resending it such that the set is complete.]

Simple bug fix to icmp_filter -- handle fragemented skbs correctly.

Signed-off-by: ian.pratt@xxxxxxxxxxxx

---
diff -Nurp pristine-linux-2.6.10-rc2/net/ipv4/raw.c tmp-linux-2.6.10-rc2-xen.patch/net/ipv4/raw.c
--- pristine-linux-2.6.10-rc2/net/ipv4/raw.c	2004-11-30 01:20:26.000000000 +0000
+++ tmp-linux-2.6.10-rc2-xen.patch/net/ipv4/raw.c	2004-11-30 00:41:24.000000000 +0000
@@ -130,6 +130,9 @@ static __inline__ int icmp_filter(struct
 {
 	int type;
 
+	if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
+		return 1;
+
 	type = skb->h.icmph->type;
 	if (type < 32) {
 		__u32 data = raw4_sk(sk)->filter.data;
-
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