diff --exclude-from=/home/dang/.scripts/diffrc -up -ruN libxslt-1.1.20.orig/python/libxslt.c libxslt-1.1.20/python/libxslt.c
--- libxslt-1.1.20.orig/python/libxslt.c	2007-01-15 07:51:48.000000000 -0500
+++ libxslt-1.1.20/python/libxslt.c	2007-08-29 10:36:36.000000000 -0400
@@ -740,7 +740,7 @@ libxslt_xsltApplyStylesheet(PyObject *se
     PyObject *pyobj_doc;
     PyObject *pyobj_params;
     const char **params = NULL;
-    int len = 0, i = 0, j;
+    int len = 0, i = 0, j, params_size;
     PyObject *name;
     PyObject *value;
 
@@ -752,13 +752,14 @@ libxslt_xsltApplyStylesheet(PyObject *se
 	if (PyDict_Check(pyobj_params)) {
 	    len = PyDict_Size(pyobj_params);
 	    if (len > 0) {
-		params = (const char **) xmlMalloc((len + 1) * 2 *
-			                           sizeof(char *));
+		params_size = (len + 1) * 2 * sizeof(char *);
+		params = (const char **) xmlMalloc(params_size);
 		if (params == NULL) {
 		    printf("libxslt_xsltApplyStylesheet: out of memory\n");
 		    Py_INCREF(Py_None);
 		    return(Py_None);
 		}
+		memset(params, 0, params_size);
 		j = 0;
 		while (PyDict_Next(pyobj_params, &i, &name, &value)) {
 		    const char *tmp;