diff options
| -rw-r--r-- | net/bridge/br_multicast.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index ef66365b7354..fb0e36fac668 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1235,6 +1235,12 @@ static int br_ip6_multicast_query(struct net_bridge *br, (port && port->state == BR_STATE_DISABLED)) goto out; + /* RFC2710+RFC3810 (MLDv1+MLDv2) require link-local source addresses */ + if (!(ipv6_addr_type(&ip6h->saddr) & IPV6_ADDR_LINKLOCAL)) { + err = -EINVAL; + goto out; + } + if (skb->len == sizeof(*mld)) { if (!pskb_may_pull(skb, sizeof(*mld))) { err = -EINVAL; |