commit 78980438683d98076cd541d995a868fb5c9e4277
author Serhiy Storchaka <storchaka@gmail.com> Tue Jan 15 01:12:17 2013 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Tue Jan 15 01:12:17 2013 +0200
tree 6003323bfe4c38f0d9ca17f126fbcdf782752600
parent 5f1cfbb5c056564e2692d2abcdc82f1944a3b2ec

Issue #15989: Fix several occurrences of integer overflow
when result of PyLong_AsLong() narrowed to int without checks.

Objects/fileobject.c

diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index e1c47ce..3a31314 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -200,7 +200,7 @@
     _Py_IDENTIFIER(fileno);
 
     if (PyLong_Check(o)) {
-        fd = PyLong_AsLong(o);
+        fd = _PyLong_AsInt(o);
     }
     else if ((meth = _PyObject_GetAttrId(o, &PyId_fileno)) != NULL)
     {
@@ -210,7 +210,7 @@
             return -1;
 
         if (PyLong_Check(fno)) {
-            fd = PyLong_AsLong(fno);
+            fd = _PyLong_AsInt(fno);
             Py_DECREF(fno);
         }
         else {