af_packet: do not accept mc address smaller then dev->addr_len in packet_mc_add()

[net-next-2.6.git] / net / packet / af_packet.c

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 2f0369367ee0ca26c249efb44a08f42f4469385a..e2d1def708414bf3564b319d27d588b80237c247 100644 (file)
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1734,7 +1734,7 @@ static int packet_mc_add(struct sock *sk, struct packet_mreq_max *mreq)
                goto done;
 
        err = -EINVAL;
-       if (mreq->mr_alen > dev->addr_len)
+       if (mreq->mr_alen != dev->addr_len)
                goto done;
 
        err = -ENOBUFS;