commit 441d30fac7f4037e4a79e4ada873de3b6f6e5a26
author Serhiy Storchaka <storchaka@gmail.com> Sat Jan 19 12:26:26 2013 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Sat Jan 19 12:26:26 2013 +0200
tree a406cb41f1b78476445786f408b95b1cd0bdb7a6
parent ff12fae80e15ad29ae2557d23e70f6ff9365b31f

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

This is a backport of changesets 13e2e44db99d and 525407d89277.

Modules/_io/fileio.c

diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index 8ea7c58..ad4a7e6 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -240,7 +240,7 @@
         return -1;
     }
 
-    fd = PyLong_AsLong(nameobj);
+    fd = _PyLong_AsInt(nameobj);
     if (fd < 0) {
         if (!PyErr_Occurred()) {
             PyErr_SetString(PyExc_ValueError,