--- auth_pam.c.orig	2015-08-23 16:16:25.075000000 -0700
+++ auth_pam.c	2015-08-23 16:18:17.594000000 -0700
@@ -99,6 +99,9 @@
         return PAM_CONV_ERR;
       /* allocate and copy the reply to the response array */
       (*resp)[i].resp = strndup((char*)pkt, pkt_len);
+      if ( (*resp)[i].resp == NULL) {
+	return PAM_CONV_ERR;
+      }
       param->ptr = param->buf + 1;
     }
   }