From: Barry Warsaw <barry@python.org>
Date: Tue, 3 Oct 2000 20:45:26 +0000 (+0000)
Subject: _PyUnicode_Fini(): Initialize the local freelist walking variable `u'
X-Git-Tag: v2.0c1~135
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5b4c22806fe6bdd7cb2d6c01e0a09e10c90be0bc;p=python

_PyUnicode_Fini(): Initialize the local freelist walking variable `u'
after unicode_empty has been freed, otherwise it might not point to
the real start of the unicode_freelist.  Final closure for SF bug
#110681, Jitterbug PR#398.
---

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 8d04b2d0bb..b31675b496 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -5223,11 +5223,12 @@ void _PyUnicode_Init(void)
 void
 _PyUnicode_Fini(void)
 {
-    PyUnicodeObject *u = unicode_freelist;
+    PyUnicodeObject *u;
 
     Py_XDECREF(unicode_empty);
     unicode_empty = NULL;
-    while (u != NULL) {
+
+    for (u = unicode_freelist; u != NULL;) {
 	PyUnicodeObject *v = u;
 	u = *(PyUnicodeObject **)u;
 	if (v->str)