fix: invalid read

src/cmd/cmds.c

@@ -21,7 +21,7 @@ lst** cmds_init(size_t len)
 			return (NULL);
 		}
 		lst_addback(root, current);
-		content = malloc(sizeof(cmd));
+		content = calloc(sizeof(cmd), 1);
 		if (content == NULL)
 		{
 			lst_clear(root, &free);

src/env/env.c

@@ -171,5 +171,6 @@ char **get_env_str(lst** root)
 		current = current->next;
 		i++;
 	}
+	tab[i] = NULL;
 	return tab;
 }