Check rng return value when generating nonces in libpts

src/libpts/pts/pts.c

@@ -226,9 +226,13 @@ METHOD(pts_t, create_dh_nonce, bool,
 	DBG2(DBG_PTS, "nonce length is %d", nonce_len);
 	nonce = this->is_imc ? &this->responder_nonce : &this->initiator_nonce;
 	chunk_free(nonce);
-	rng->allocate_bytes(rng, nonce_len, nonce);
+	if (!rng->allocate_bytes(rng, nonce_len, nonce))
+	{
+		DBG1(DBG_PTS, "failed to allocate nonce");
+		rng->destroy(rng);
+		return FALSE;
+	}
 	rng->destroy(rng);
-
 	return TRUE;
 }