From a14c4bbbaa2a3c20e92edbd8fcf162a593474209 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Walter=20D=C3=B6rwald?= <walter@livinglogic.de>
Date: Sun, 6 May 2007 10:00:02 +0000
Subject: Check whether the strlen() result overflows Py_ssize_t.

---
 Objects/unicodeobject.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index af98a90..9dc96da 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -396,7 +396,11 @@ PyObject *PyUnicode_FromUnicode(const Py_UNICODE *u,
 PyObject *PyUnicode_FromString(const char *u)
 {
     PyUnicodeObject *unicode;
-    Py_ssize_t size = strlen(u);
+    size_t size = strlen(u);
+    if (size > PY_SSIZE_T_MAX) {
+        PyErr_SetString(PyExc_OverflowError, "input too long");
+        return NULL;
+    }
 
     /* If the Unicode data is known at construction time, we can apply
        some optimizations which share commonly used objects. */
-- 
cgit v0.12

