From: Jesus Cea <jcea@jcea.es>
Date: Mon, 10 Sep 2012 20:57:34 +0000 (+0200)
Subject: #15676: mmap: add empty file check prior to offset check <- Previous patch was incomp... 
X-Git-Tag: v2.7.4rc1~569
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8e03b4cae0cf37aac52827523fb3cf56894ffdf9;p=thirdparty%2FPython%2Fcpython.git

#15676: mmap: add empty file check prior to offset check <- Previous patch was incomplete (fix 2)
---

diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index 62d934c607fa..03685ce6c104 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -1391,6 +1391,7 @@ new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
             if (size == 0) {
                 PyErr_SetString(PyExc_ValueError,
                                 "cannot mmap an empty file");
+                Py_DECREF(m_obj);
                 return NULL;
             }
             if (offset >= size) {