Bug#529291: rrdtool python bindings leak memory

[Anders Hammarquist]

Package: python-rrdtool
Version: 1.3.1-4
Tags: patch

The python bindings for the calls rrd_info, rrd_graph_v and rrd_update_v
do not properly release references to some objects that they allocate
leading to memory leaks. Attacked is a patch to fix it.

/Anders

Index: trunk/bindings/python/rrdtoolmodule.c
===================================================================
--- trunk/bindings/python/rrdtoolmodule.c       (revision 1440)
+++ trunk/bindings/python/rrdtoolmodule.c       (working copy)
@@ -435,6 +435,7 @@
         }
         if (val) {
             PyDict_SetItemString(r, data->key, val);
+            Py_DECREF(val);
         }
         data = data->next;
     }
@@ -459,10 +460,13 @@
     if ((data = rrd_info(argc, argv)) == NULL) {
         PyErr_SetString(ErrorObject, rrd_get_error());
         rrd_clear_error();
-        return NULL;
+        r = NULL;
+    } else {
+        r = PyDict_FromInfo(data);
+        rrd_info_free(data);
     }
-    r = PyDict_FromInfo(data);
-    rrd_info_free(data);
+
+    destroy_args(&argv);
     return r;
 }
 
@@ -484,10 +488,13 @@
     if ((data = rrd_graph_v(argc, argv)) == NULL) {
         PyErr_SetString(ErrorObject, rrd_get_error());
         rrd_clear_error();
-        return NULL;
+        r = NULL;
+    } else {
+        r = PyDict_FromInfo(data);
+        rrd_info_free(data);
     }
-    r = PyDict_FromInfo(data);
-    rrd_info_free(data);
+
+    destroy_args(&argv);
     return r;
 }
 
@@ -509,10 +516,13 @@
     if ((data = rrd_update_v(argc, argv)) == NULL) {
         PyErr_SetString(ErrorObject, rrd_get_error());
         rrd_clear_error();
-        return NULL;
+        r = NULL;
+    } else {
+        r = PyDict_FromInfo(data);
+        rrd_info_free(data);
     }
-    r = PyDict_FromInfo(data);
-    rrd_info_free(data);
+
+    destroy_args(&argv);
     return r;
 }
 



-- 
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org