[3.9] bpo-40998: Fix a refleak in create_filter() (GH-23365) (GH-23369)
(cherry picked from commit d1e38d4023aa29e7ed64d4f8eb9c1e4a3c86a2e5)
diff --git a/Python/_warnings.c b/Python/_warnings.c
index 4d65bb3..91a78fe 100644
--- a/Python/_warnings.c
+++ b/Python/_warnings.c
@@ -69,11 +69,14 @@
}
} else {
modname_obj = Py_None;
+ Py_INCREF(modname_obj);
}
/* This assumes the line number is zero for now. */
- return PyTuple_Pack(5, action_str, Py_None,
- category, modname_obj, _PyLong_Zero);
+ PyObject *filter = PyTuple_Pack(5, action_str, Py_None,
+ category, modname_obj, _PyLong_Zero);
+ Py_DECREF(modname_obj);
+ return filter;
}
#endif