packet: Fix leak in pre-defrag support.

When we clone the SKB, we forget about the original one. Avoid this problem by using skb_share_check(). Reported-by: Penttilä Mika <[email protected]> Signed-off-by: David S. Miller <[email protected]>
redpig · Jul 6, 2011 · aec2731 · aec2731
1 parent dc7f9f6
commit aec2731
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
@@ -476,7 +476,7 @@ static struct sk_buff *fanout_check_defrag(struct sk_buff *skb)
 		return skb;
 
 	if (ip_is_fragment(ip_hdr(skb))) {
-		skb = skb_clone(skb, GFP_ATOMIC);
+		skb = skb_share_check(skb, GFP_ATOMIC);
 		if (skb) {
 			if (pskb_trim_rcsum(skb, len))
 				return skb;