+++ /dev/null
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -1051,8 +1051,11 @@ ieee80211_tx_prepare(struct ieee80211_su
-
- hdr = (struct ieee80211_hdr *) skb->data;
-
-- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
- tx->sta = rcu_dereference(sdata->u.vlan.sta);
-+ if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
-+ return TX_DROP;
-+ }
- if (!tx->sta)
- tx->sta = sta_info_get(sdata, hdr->addr1);
-