Copy previous BSSID into STA data only after full validation of the request

hostapd/ieee802_11.c

@@ -1013,11 +1013,6 @@ static void handle_assoc(struct hostapd_data *hapd,
 		goto fail;
 	}
 
-	if (reassoc) {
-		os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap,
-			  ETH_ALEN);
-	}
-
 	sta->capability = capab_info;
 
 	/* followed by SSID and Supported rates; and HT capabilities if 802.11n
@@ -1298,6 +1293,11 @@ static void handle_assoc(struct hostapd_data *hapd,
 	/* Station will be marked associated, after it acknowledges AssocResp
 	 */
 
+	if (reassoc) {
+		os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap,
+			  ETH_ALEN);
+	}
+
 	if (sta->last_assoc_req)
 		os_free(sta->last_assoc_req);
 	sta->last_assoc_req = os_malloc(len);