Interworking: Verify that BSS information includes SSID

Better make sure that the SSID is available before dereferencing
the pointer to the SSID element.

Signed-hostap: Jouni Malinen <j@w1.fi>

diff --git a/wpa_supplicant/interworking.c b/wpa_supplicant/interworking.c
index 2592688b0270f03aff3aceb55d8e786439b1542b..d42aa407c8cf142cfed19aa0d329322f38ee80df 100644 (file)
--- a/wpa_supplicant/interworking.c
+++ b/wpa_supplicant/interworking.c
@@ -571,6 +571,8 @@ static int interworking_connect_3gpp(struct wpa_supplicant *wpa_s,
        const u8 *ie;
 
        ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
+       if (ie == NULL)
+               return -1;
        wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " (3GPP)",
                   MAC2STR(bss->bssid));