diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index bf5585c701ad..b290da650c70 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -6527,6 +6527,9 @@ static inline void rtw89_assoc_link_clr(struct rtw89_sta_link *rtwsta_link)
 static inline struct rtw89_sta_link *
 rtw89_assoc_link_rcu_dereference(struct rtw89_dev *rtwdev, u8 macid)
 {
+	if (unlikely(macid >= RTW89_MAX_MAC_ID_NUM))
+		return NULL;
+
 	return rcu_dereference(rtwdev->assoc_link_on_macid[macid]);
 }