diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 0457712286d5..3f583e2a1dc1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1295,8 +1295,10 @@ int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif_link *mvif,
 				    wtbl_hdr);
 
 	ret = mt76_connac_mcu_sta_wed_update(dev, skb);
-	if (ret)
+	if (ret) {
+		dev_kfree_skb(skb);
 		return ret;
+	}
 
 	ret = mt76_mcu_skb_send_msg(dev, skb, cmd, true);
 	if (ret)
@@ -1309,8 +1311,10 @@ int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif_link *mvif,
 	mt76_connac_mcu_sta_ba_tlv(skb, params, enable, tx);
 
 	ret = mt76_connac_mcu_sta_wed_update(dev, skb);
-	if (ret)
+	if (ret) {
+		dev_kfree_skb(skb);
 		return ret;
+	}
 
 	return mt76_mcu_skb_send_msg(dev, skb, cmd, true);
 }
@@ -2764,12 +2768,16 @@ int mt76_connac_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif,
 		return PTR_ERR(skb);
 
 	ret = mt76_connac_mcu_sta_key_tlv(sta_key_conf, skb, key, cmd);
-	if (ret)
+	if (ret) {
+		dev_kfree_skb(skb);
 		return ret;
+	}
 
 	ret = mt76_connac_mcu_sta_wed_update(dev, skb);
-	if (ret)
+	if (ret) {
+		dev_kfree_skb(skb);
 		return ret;
+	}
 
 	return mt76_mcu_skb_send_msg(dev, skb, mcu_cmd, true);
 }
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index d6f54b1edfb1..318c38149463 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -1765,8 +1765,10 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 	}
 out:
 	ret = mt76_connac_mcu_sta_wed_update(&dev->mt76, skb);
-	if (ret)
+	if (ret) {
+		dev_kfree_skb(skb);
 		return ret;
+	}
 
 	return mt76_mcu_skb_send_msg(&dev->mt76, skb,
 				     MCU_EXT_CMD(STA_REC_UPDATE), true);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
index 2daf5a29220f..1379bf6a26b5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
@@ -1288,8 +1288,10 @@ int mt7925_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif,
 		return PTR_ERR(skb);
 
 	ret = mt7925_mcu_sta_key_tlv(wcid, sta_key_conf, skb, key, cmd, msta);
-	if (ret)
+	if (ret) {
+		dev_kfree_skb(skb);
 		return ret;
+	}
 
 	return mt76_mcu_skb_send_msg(dev, skb, mcu_cmd, true);
 }