Fix COVs

libr/anal/meta.c

@@ -401,9 +401,12 @@ static int meta_print_item(void *user, const char *k, const char *v) {
 	it.str = strchr (v2+1, ',');
 	if (it.str)
 		it.str = (char *)sdb_decode ((const char*)it.str+1, 0);
+	else it.str = strdup (it.str); // don't break in free
 	printmetaitem (ui->anal, &it, ui->rad);
-beach:
 	free (it.str);
+
+beach:
+
 	return 1;
 }
 
@@ -439,7 +442,10 @@ static int meta_enumerate_cb(void *user, const char *k, const char *v) {
 	it->from = sdb_atoi (k+7);
 	it->to = it->from + it->size;
 	v2 = strchr (v, ',');
-	if (!v2) goto beach;
+	if (!v2) {
+		free (it); 
+		goto beach;
+	}
 	it->space = atoi (v2+1);
 	it->str = strchr (v2+1, ',');
 

libr/bin/format/mz/mz.c

@@ -81,6 +81,7 @@ struct r_bin_mz_segment_t * r_bin_mz_get_segments(
 	segments = calloc (num_relocs, sizeof(*segments));
 	if (segments == NULL) {
 		eprintf ("Error: calloc (segments)\n");
+		btree_cleartree (tree, NULL);
 		return NULL;
 	}
 

libr/core/graph.c

@@ -356,7 +356,10 @@ static int get_cgnodes(AGraph *g) {
 
 		RFlagItem *fi = r_flag_get_at (g->core->flags, ref->addr);
 		node = R_NEW0 (ANode);
-		if (!node) return R_FALSE;
+		if (!node) {
+			sdb_free (g_nodes);
+			return R_FALSE;
+		}
 		if (fi) {
 			node->text = strdup (fi->name);
 			node->text = r_str_concat (node->text, ":\n");

libr/util/queue.c

@@ -4,9 +4,12 @@
 
 R_API RQueue *r_queue_new (int n) {
 	RQueue *q = R_NEW0 (RQueue);
+	if (!q) return NULL;
 	q->elems = R_NEWS0 (void *, n);
-	if (!q->elems)
+	if (!q->elems){
+		free (q);
 		return NULL;
+	}
 
 	q->front = 0;
 	q->rear = -1;

libr/util/stack.c

@@ -4,9 +4,12 @@
 
 R_API RStack *r_stack_new (unsigned int n) {
 	RStack *s = R_NEW0 (RStack);
+	if (!s) return NULL;
 	s->elems = R_NEWS0 (void *, n);
-	if (!s->elems)
+	if (!s->elems){
+		free (s);
 		return NULL;
+	}
 
 	s->n_elems = n;
 	s->top = -1;