Fix a possible decref of a borrowed reference in symtable.c. (GH-9786)

python · Oct 11, 2018 · fc439d2 · fc439d2
1 parent 9b8c2e7
commit fc439d2
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/Python/symtable.c b/Python/symtable.c
@@ -625,8 +625,10 @@ update_symbols(PyObject *symbols, PyObject *scopes,
         return 0;
 
     itr = PyObject_GetIter(free);
-    if (!itr)
-        goto error;
+    if (itr == NULL) {
+        Py_DECREF(v_free);
+        return 0;
+    }
 
     while ((name = PyIter_Next(itr))) {
         v = PyDict_GetItem(symbols, name);