From 03b3f045425f201001deb0fc632a7d15f9c18cca Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Tue, 4 Dec 2001 16:36:39 +0000
Subject: [PATCH] long_mul(): The PyNumber_Multiply() call can return a long if
 the result would overflow an int.  Check for this.  (SF bug #488482, Armin
 Rigo.)

---
 Objects/rangeobject.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Objects/rangeobject.c b/Objects/rangeobject.c
index 24765f4dec7..5095e5254bd 100644
--- a/Objects/rangeobject.c
+++ b/Objects/rangeobject.c
@@ -38,10 +38,16 @@ long_mul(long i, long j, long *kk)
 	if (c == NULL)
 		return 0;
 
+	if (!PyInt_Check(c)) {
+		Py_DECREF(c);
+		goto overflow;
+	}
+
 	*kk = PyInt_AS_LONG(c);
 	Py_DECREF(c);
 
 	if (*kk > INT_MAX) {
+	  overflow:
 		PyErr_SetString(PyExc_OverflowError,
 				"integer multiplication");
 		return 0;