diff -r ee0bdc007a0f Lib/test/test_xml_etree.py
--- a/Lib/test/test_xml_etree.py	Sat Aug 03 20:24:00 2013 +0200
+++ b/Lib/test/test_xml_etree.py	Sun Aug 04 13:19:51 2013 +0300
@@ -883,6 +883,12 @@
>>> check_encoding("iso-8859-15")
>>> check_encoding("cp437")
>>> check_encoding("mac-roman")
+>>> check_encoding("gbk")
+ Traceback (most recent call last):
+ ValueError: multi-byte encodings are not supported
+>>> check_encoding("cp037")
+ Traceback (most recent call last):
+ ParseError: unknown encoding: line 1, column 30
 """
 ET.XML("<?xml version='1.0' encoding='%s'?><xml />" % encoding)
 
diff -r ee0bdc007a0f Modules/_elementtree.c
--- a/Modules/_elementtree.c	Sat Aug 03 20:24:00 2013 +0200
+++ b/Modules/_elementtree.c	Sun Aug 04 13:19:51 2013 +0300
@@ -2427,6 +2427,8 @@
 
 if (PyUnicode_GET_SIZE(u) != 256) {
 Py_DECREF(u);
+ PyErr_SetString(PyExc_ValueError,
+ "multi-byte encodings are not supported");
 return XML_STATUS_ERROR;
 }
 
diff -r ee0bdc007a0f Modules/pyexpat.c
--- a/Modules/pyexpat.c	Sat Aug 03 20:24:00 2013 +0200
+++ b/Modules/pyexpat.c	Sun Aug 04 13:19:51 2013 +0300
@@ -1252,6 +1252,13 @@
 if (_u_string == NULL)
 return result;
 
+ if (PyUnicode_GET_SIZE(_u_string) != 256) {
+ Py_DECREF(_u_string);
+ PyErr_SetString(PyExc_ValueError,
+ "multi-byte encodings are not supported");
+ return result;
+ }
+
 for (i = 0; i < 256; i++) { /* Stupid to access directly, but fast */ Py_UNICODE c = _u_string->str[i];
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://bugs.python.org/file31150/expat_buffer_overflow-2.7.patch">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://bugs.python.org/file31150/expat_buffer_overflow-2.7.patch" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>