[Bridge] [PATCH] bridge: Bug fix for incorrect interpretation of MLDv2 maximum response code

Ang Way Chuang wcang at sfc.wide.ad.jp
Fri Dec 14 00:07:01 UTC 2012


This patch fixes the incorrect interpretation of endianness of MLDv2 maximum response
code within bridge's multicast snooping code.

Signed-off-by: Ang Way Chuang <wcang at sfc.wide.ad.jp>
---
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 977c3ee..29c6283 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1172,7 +1172,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 		mld2q = (struct mld2_query *)icmp6_hdr(skb);
 		if (!mld2q->mld2q_nsrcs)
 			group = &mld2q->mld2q_mca;
-		max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(mld2q->mld2q_mrc) : 1;
+		max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(ntohs(mld2q->mld2q_mrc)) : 1;
 	}
 
 	if (!group)


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