From: Benjamin Peterson <benjamin@python.org>
Date: Sat, 15 Mar 2014 02:47:23 +0000 (-0500)
Subject: don't do pointer arithmetic with signed numbers
X-Git-Tag: v3.4.1rc1~233^2~15^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=041c38a790cb9ce14742765e3314d90a7c601809;p=python

don't do pointer arithmetic with signed numbers
---

diff --git a/Objects/longobject.c b/Objects/longobject.c
index 4ae22ef31b..e2d95ae51f 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -36,7 +36,8 @@ Py_ssize_t quick_int_allocs, quick_neg_int_allocs;
 static PyObject *
 get_small_int(sdigit ival)
 {
-    PyObject *v = (PyObject*)(small_ints + ival + NSMALLNEGINTS);
+    assert(-NSMALLNEGINTS <= ival && ival < NSMALLPOSINTS);
+    PyObject *v = (PyObject *)&small_ints[ival + NSMALLNEGINTS];
     Py_INCREF(v);
 #ifdef COUNT_ALLOCS
     if (ival >= 0)