Cumulative patch from commit d3b204694a39e6c57a4c6689b87f4192e1b93a06

d3b2046 P2P: Make the default p2p_find delay value configurable
3dacd3e atheros: Add support for new GCMP/CCMP/CMAC/GMAC cipher suites
737754d EAP-IKEv2: Remove obsolete ccns.pl project workarounds
aa6bf6d eap_proxy: Check sm != NULL more consistently
4f4d51e TDLS: Add extra validation step for responder RSN IE length
a01acc5 Check for EVENT_ASSOC data to be present for AP mode operation
1fde15a GAS server: Explicitly check that home realm is available
aff0bee GAS server: Remove unused function parameter
86388af WPS: Check for theoretical gmtime() failure
d75a5ae WPS ER: Fix UDN parser to handle missing field
0bbaa9b Validate driver extended capabilities length against buffer length
9c6c558 Interworking: Reject EAP configuration with unsupported inner method
f2ca0e9 Check eap_get_name() return against NULL to silence static analyzer
bc32bb7 Make a code path easier for static analyzers to understand
fb958ea Check current_ssid on unexpected association event
2a57c33 Reserve QCA vendor specific nl80211 commands 20..33
84df167 nl80211: Add vendor attribute for interface index
9949483 The master branch is now used for v2.3 development

Change-Id: Ib39c204aaa3ebcc909057f815e5e291e15e5df88
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/wps/wps_er.c b/src/wps/wps_er.c
index 8b2675e..078ff72 100644
--- a/src/wps/wps_er.c
+++ b/src/wps/wps_er.c
@@ -579,12 +579,15 @@
 	wpa_printf(MSG_DEBUG, "WPS ER: serialNumber='%s'", ap->serial_number);
 
 	ap->udn = xml_get_first_item(data, "UDN");
-	wpa_printf(MSG_DEBUG, "WPS ER: UDN='%s'", ap->udn);
-	pos = os_strstr(ap->udn, "uuid:");
-	if (pos) {
-		pos += 5;
-		if (uuid_str2bin(pos, ap->uuid) < 0)
-			wpa_printf(MSG_DEBUG, "WPS ER: Invalid UUID in UDN");
+	if (ap->udn) {
+		wpa_printf(MSG_DEBUG, "WPS ER: UDN='%s'", ap->udn);
+		pos = os_strstr(ap->udn, "uuid:");
+		if (pos) {
+			pos += 5;
+			if (uuid_str2bin(pos, ap->uuid) < 0)
+				wpa_printf(MSG_DEBUG,
+					   "WPS ER: Invalid UUID in UDN");
+		}
 	}
 
 	ap->upc = xml_get_first_item(data, "UPC");