From db01b3e069085b3d24f65eec051f13ba1e392fb7 Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@microsoft.com>
Date: Sat, 17 Sep 2016 16:43:01 -0700
Subject: [PATCH] Issue #27932: Prevent memory leak in win32_ver().

---
 Lib/platform.py | 6 ++++--
 Misc/NEWS       | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Lib/platform.py b/Lib/platform.py
index 6e264f1ade2..37dfbeea925 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -567,7 +567,7 @@ def _get_real_winver(maj, min, build):
         return maj, min, build
 
     from ctypes import (c_buffer, POINTER, byref, create_unicode_buffer,
-                        Structure, WinDLL)
+                        Structure, WinDLL, _Pointer)
     from ctypes.wintypes import DWORD, HANDLE
 
     class VS_FIXEDFILEINFO(Structure):
@@ -586,6 +586,8 @@ def _get_real_winver(maj, min, build):
             ("dwFileDateMS", DWORD),
             ("dwFileDateLS", DWORD),
         ]
+    class PVS_FIXEDFILEINFO(_Pointer):
+        _type_ = VS_FIXEDFILEINFO
 
     kernel32 = WinDLL('kernel32')
     version = WinDLL('version')
@@ -611,7 +613,7 @@ def _get_real_winver(maj, min, build):
         not ver_block):
         return maj, min, build
 
-    pvi = POINTER(VS_FIXEDFILEINFO)()
+    pvi = PVS_FIXEDFILEINFO()
     if not version.VerQueryValueW(ver_block, "", byref(pvi), byref(DWORD())):
         return maj, min, build
 
diff --git a/Misc/NEWS b/Misc/NEWS
index 3638a1672a2..9ef88bf07b5 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -214,6 +214,8 @@ Tools/Demos
 Windows
 -------
 
+- Issue #27932: Prevent memory leak in win32_ver().
+
 - Issue #27888: Prevent Windows installer from displaying console windows and
   failing when pip cannot be installed/uninstalled.