apply patch from upstream to fix possible overflow in "buffer"

object accesses (CVE-2014-7185)
bump PKGREV

lang/python26/Makefile

@@ -1,8 +1,8 @@
-# $NetBSD: Makefile,v 1.63 2014/04/13 14:56:56 bsiegert Exp $
+# $NetBSD: Makefile,v 1.64 2014/10/27 20:11:34 drochner Exp $
 
 .include "dist.mk"
 
-PKGREVISION=	3
+PKGREVISION=	4
 
 PKGNAME=	python26-${PY_DISTVERSION}
 CATEGORIES=	lang python

lang/python26/distinfo

@@ -1,8 +1,9 @@
-$NetBSD: distinfo,v 1.59 2014/05/21 00:35:50 obache Exp $
+$NetBSD: distinfo,v 1.60 2014/10/27 20:11:34 drochner Exp $
 
 SHA1 (Python-2.6.9.tar.xz) = 2fc159946dfcceffbe4a8638de32d0cd8059c2f8
 RMD160 (Python-2.6.9.tar.xz) = 42edf7c9f2f64b77ab173de30ea453257c2c06b3
 Size (Python-2.6.9.tar.xz) = 9333664 bytes
+SHA1 (patch-CVE-2014-7185) = 768199954b166474ab471e34afc9238fd7125ce8
 SHA1 (patch-Lib_distutils_unixccompiler.py) = 1ce01fbe2d36cf0c7ce347c878cfe2d290ec8490
 SHA1 (patch-Mac_Modules_fm___Fmmodule.c) = b9314bccb51b4fe672b81559068f7a79d2965f94
 SHA1 (patch-Mac_Modules_qd___Qdmodule.c) = 45c748b15b9436d45ba137460389638aa7108c8d

lang/python26/patches/patch-CVE-2014-7185

@@ -0,0 +1,15 @@
+$NetBSD: patch-CVE-2014-7185,v 1.1 2014/10/27 20:11:34 drochner Exp $
+
+http://bugs.python.org/issue21831
+
+--- Objects/bufferobject.c.orig	2014-10-27 19:46:40.000000000 +0000
++++ Objects/bufferobject.c
+@@ -88,7 +88,7 @@ get_buf(PyBufferObject *self, void **ptr
+             *size = count;
+         else
+             *size = self->b_size;
+-        if (offset + *size > count)
++        if (*size > count - offset)
+             *size = count - offset;
+     }
+     return 1;