Index: sys/netinet/cc/cc_newreno.c
===================================================================
--- sys/netinet/cc/cc_newreno.c
+++ sys/netinet/cc/cc_newreno.c
@@ -82,6 +82,7 @@
 #define	CAST_PTR_INT(X) (*((int*)(X)))
 
 static int newreno_cb_init(struct cc_var *ccv);
+static void newreno_cb_destroy(struct cc_var *ccv);
 static void	newreno_ack_received(struct cc_var *ccv, uint16_t type);
 static void	newreno_after_idle(struct cc_var *ccv);
 static void	newreno_cong_signal(struct cc_var *ccv, uint32_t type);
@@ -96,6 +97,7 @@
 struct cc_algo newreno_cc_algo = {
 	.name = "newreno",
 	.cb_init = newreno_cb_init,
+	.cb_destroy = newreno_cb_destroy,
 	.ack_received = newreno_ack_received,
 	.after_idle = newreno_after_idle,
 	.cong_signal = newreno_cong_signal,
@@ -117,11 +119,21 @@
 	if (nreno != NULL) {
 		nreno->beta = V_newreno_beta;
 		nreno->beta_ecn = V_newreno_beta_ecn;
+
+		ccv->cc_data = nreno;
 	}
 
 	return (0);
 }
 
+void
+newreno_cb_destroy(struct cc_var *ccv)
+{
+	if (ccv->cc_data != NULL)
+		free(ccv->cc_data, M_NEWRENO);
+}
+
+
 static void
 newreno_ack_received(struct cc_var *ccv, uint16_t type)
 {