diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index dc1191aa0443e11ff62f11d3f1a791a0c53829b6..dc1351f2a04c8d3273cabfb21a8cb840df01cd45 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -987,7 +987,7 @@ mt76_sta_add(struct mt76_dev *dev, struct ieee80211_vif *vif,
 			continue;
 
 		mtxq = (struct mt76_txq *)sta->txq[i]->drv_priv;
-		mtxq->wcid = wcid;
+		mtxq->wcid = wcid->idx;
 	}
 
 	ewma_signal_init(&wcid->rssi);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 16e65020a242d4d189e8088da72d70324e92dde9..3cb1a2b8aa84d5235e2ffea615dd1e0008f3e42d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -226,7 +226,7 @@ struct mt76_wcid {
 };
 
 struct mt76_txq {
-	struct mt76_wcid *wcid;
+	u16 wcid;
 
 	u16 agg_ssn;
 	bool send_bar;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
index bdff89cc3105e6b51bbb27a04e5061b0062ac214..a5b472af93d39d3c93ce85b3e53b9e27d2a144c9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
@@ -74,7 +74,7 @@ mt7603_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	mt7603_wtbl_init(dev, idx, mvif->idx, bc_addr);
 
 	mtxq = (struct mt76_txq *)vif->txq->drv_priv;
-	mtxq->wcid = &mvif->sta.wcid;
+	mtxq->wcid = idx;
 	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
 
 out:
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index defa207f53d6f5dbed3ce42c1e9305941d5182b4..4fe51a0c8ac9c350c6005e2977ea86c9c59e106a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -204,7 +204,7 @@ static int mt7615_add_interface(struct ieee80211_hw *hw,
 	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
 	if (vif->txq) {
 		mtxq = (struct mt76_txq *)vif->txq->drv_priv;
-		mtxq->wcid = &mvif->sta.wcid;
+		mtxq->wcid = idx;
 	}
 
 	ret = mt7615_mcu_add_dev_info(dev, vif, true);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
index 0f191bd28417cae34f7cd787059da22becb9c468..1996a69109fae740ba0352554137663982f2d5a7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -293,7 +293,8 @@ mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif,
 	mvif->group_wcid.idx = MT_VIF_WCID(idx);
 	mvif->group_wcid.hw_key_idx = -1;
 	mtxq = (struct mt76_txq *)vif->txq->drv_priv;
-	mtxq->wcid = &mvif->group_wcid;
+	rcu_assign_pointer(dev->mt76.wcid[MT_VIF_WCID(idx)], &mvif->group_wcid);
+	mtxq->wcid = MT_VIF_WCID(idx);
 }
 
 int
@@ -346,6 +347,7 @@ void mt76x02_remove_interface(struct ieee80211_hw *hw,
 	struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
 
 	dev->mphy.vif_mask &= ~BIT(mvif->idx);
+	rcu_assign_pointer(dev->mt76.wcid[mvif->group_wcid.idx], NULL);
 }
 EXPORT_SYMBOL_GPL(mt76x02_remove_interface);
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index e78d3efa3fdf4fe0ce5228688df70e814291f91b..d3d0085f070a322757126caa9743e9ef05852283 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -168,7 +168,7 @@ static int mt7915_add_interface(struct ieee80211_hw *hw,
 	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
 	if (vif->txq) {
 		mtxq = (struct mt76_txq *)vif->txq->drv_priv;
-		mtxq->wcid = &mvif->sta.wcid;
+		mtxq->wcid = idx;
 	}
 
 out:
diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index 073c29eb2ed8fc0c8d72148ce7e04104ea215f44..974105d7503df11a09d12177fcf77fc5b09e5efd 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -382,12 +382,11 @@ EXPORT_SYMBOL_GPL(mt76_release_buffered_frames);
 
 static int
 mt76_txq_send_burst(struct mt76_phy *phy, struct mt76_queue *q,
-		    struct mt76_txq *mtxq)
+		    struct mt76_txq *mtxq, struct mt76_wcid *wcid)
 {
 	struct mt76_dev *dev = phy->dev;
 	struct ieee80211_txq *txq = mtxq_to_txq(mtxq);
 	enum mt76_txq_id qid = mt76_txq_get_qid(txq);
-	struct mt76_wcid *wcid = mtxq->wcid;
 	struct ieee80211_tx_info *info;
 	struct sk_buff *skb;
 	int n_frames = 1;
@@ -471,8 +470,8 @@ mt76_txq_schedule_list(struct mt76_phy *phy, enum mt76_txq_id qid)
 			break;
 
 		mtxq = (struct mt76_txq *)txq->drv_priv;
-		wcid = mtxq->wcid;
-		if (wcid && test_bit(MT_WCID_FLAG_PS, &wcid->flags))
+		wcid = rcu_dereference(dev->wcid[mtxq->wcid]);
+		if (!wcid || test_bit(MT_WCID_FLAG_PS, &wcid->flags))
 			continue;
 
 		if (mtxq->send_bar && mtxq->aggr) {
@@ -488,7 +487,7 @@ mt76_txq_schedule_list(struct mt76_phy *phy, enum mt76_txq_id qid)
 			spin_lock_bh(&q->lock);
 		}
 
-		ret += mt76_txq_send_burst(phy, q, mtxq);
+		ret += mt76_txq_send_burst(phy, q, mtxq, wcid);
 		ieee80211_return_txq(phy->hw, txq, false);
 	}
 	spin_unlock_bh(&q->lock);