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-rw-r--r--net/batman-adv/routing.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 27cdf5e4349a..9e5c71e406ff 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -826,6 +826,10 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
vid = batadv_get_vid(skb, hdr_len);
ethhdr = (struct ethhdr *)(skb->data + hdr_len);
+ /* do not reroute multicast frames in a unicast header */
+ if (is_multicast_ether_addr(ethhdr->h_dest))
+ return true;
+
/* check if the destination client was served by this node and it is now
* roaming. In this case, it means that the node has got a ROAM_ADV
* message and that it knows the new destination in the mesh to re-route