From: Sergey Fedoseev <fedoseev.sergey@gmail.com>
Date: Mon, 9 Sep 2019 20:40:58 +0000 (+0500)
Subject: Correct overflow check in PyTuple_New() (GH-14838)
X-Git-Tag: v3.9.0a1~634
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=755d4ef8243050e5ff973524633caebd0ce03af9;p=thirdparty%2FPython%2Fcpython.git

Correct overflow check in PyTuple_New() (GH-14838)
---

diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index a72257f95b08..08f7022fda25 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -120,8 +120,8 @@ tuple_alloc(Py_ssize_t size)
 #endif
     {
         /* Check for overflow */
-        if ((size_t)size > ((size_t)PY_SSIZE_T_MAX - sizeof(PyTupleObject) -
-                    sizeof(PyObject *)) / sizeof(PyObject *)) {
+        if ((size_t)size > ((size_t)PY_SSIZE_T_MAX - (sizeof(PyTupleObject) -
+                    sizeof(PyObject *))) / sizeof(PyObject *)) {
             return (PyTupleObject *)PyErr_NoMemory();
         }
         op = PyObject_GC_NewVar(PyTupleObject, &PyTuple_Type, size);