WPS ER: Verify os_get_random() return value

diff --git a/src/wps/wps_er.c b/src/wps/wps_er.c
index 45de161..8950ab4 100644 (file)
--- a/src/wps/wps_er.c
+++ b/src/wps/wps_er.c
@@ -1154,7 +1154,11 @@ wps_er_init(struct wps_context *wps, const char *ifname)
 
        os_strlcpy(er->ifname, ifname, sizeof(er->ifname));
        er->wps = wps;
-       os_get_random((unsigned char *) &er->event_id, sizeof(er->event_id));
+       if (os_get_random((unsigned char *) &er->event_id,
+                         sizeof(er->event_id)) < 0) {
+               wps_er_deinit(er, NULL, NULL);
+               return NULL;
+       }
 
        if (get_netif_info(ifname, &er->ip_addr, &er->ip_addr_text,
                           er->mac_addr)) {