From 84c36c152a2bdf98f9cc7ce0e1db98e1f442a05e Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Fri, 22 Nov 2019 13:39:36 +0100
Subject: bpo-36854: Fix reference counter in PyInit__testcapi() (GH-17338)

Increment properly Py_True/Py_False reference counter for
_testcapi.WITH_PYMALLOC variable.
---
 Modules/_testcapimodule.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 46d772c..b540716 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -6283,11 +6283,14 @@ PyInit__testcapi(void)
     PyModule_AddObject(m, "instancemethod", (PyObject *)&PyInstanceMethod_Type);
 
     PyModule_AddIntConstant(m, "the_number_three", 3);
+    PyObject *v;
 #ifdef WITH_PYMALLOC
-    PyModule_AddObject(m, "WITH_PYMALLOC", Py_True);
+    v = Py_True;
 #else
-    PyModule_AddObject(m, "WITH_PYMALLOC", Py_False);
+    v = Py_False;
 #endif
+    Py_INCREF(v);
+    PyModule_AddObject(m, "WITH_PYMALLOC", v);
 
     TestError = PyErr_NewException("_testcapi.error", NULL, NULL);
     Py_INCREF(TestError);
-- 
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