Fix memory leak in exec statement with code object -- the None returned

by PyEval_EvalCode() on success was never DECREF'ed.

Fix by Bernhard Herzog.

diff --git a/Python/ceval.c b/Python/ceval.c
index dd7faf945ce6993eeb5e72ad82df5abea064894f..fb179d1aa6e1a18724ce7f4d98a10ae038439d1c 100644 (file)
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2773,9 +2773,11 @@ exec_statement(f, prog, globals, locals)
        if (PyDict_GetItemString(globals, "__builtins__") == NULL)
                PyDict_SetItemString(globals, "__builtins__", f->f_builtins);
        if (PyCode_Check(prog)) {
-               if (PyEval_EvalCode((PyCodeObject *) prog,
-                                   globals, locals) == NULL)
+               v = PyEval_EvalCode((PyCodeObject *) prog,
+                                   globals, locals);
+               if (v == NULL)
                        return -1;
+               Py_DECREF(v);
                return 0;
        }
        if (PyFile_Check(prog)) {