From: Guido van Rossum <guido@python.org>
Date: Sat, 11 Apr 1998 15:17:34 +0000 (+0000)
Subject: Some robustness checks in Py_ReprLeave() in the unlikely event someone
X-Git-Tag: v1.5.1~48
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=eb909469787bda8eae147adc3e2b7049b73875d9;p=python

Some robustness checks in Py_ReprLeave() in the unlikely event someone
has messed with the dictionary or list.
---

diff --git a/Objects/object.c b/Objects/object.c
index f84e64fa2c..1a1ed52208 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -844,7 +844,11 @@ Py_ReprLeave(obj)
 	int i;
 
 	dict = PyThreadState_GetDict();
+	if (dict == NULL)
+		return;
 	list = PyDict_GetItemString(dict, KEY);
+	if (list == NULL || !PyList_Check(list))
+		return;
 	i = PyList_GET_SIZE(list);
 	/* Count backwards because we always expect obj to be list[-1] */
 	while (--i >= 0) {