From: Steve Dower <steve.dower@python.org>
Date: Wed, 6 Oct 2021 19:09:33 +0000 (+0100)
Subject: bpo-45375: Fix off by one error in buffer allocation (GH-28764)
X-Git-Tag: v3.11.0a2~290
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6c942a86a4fb4c8b731cb1bd2933dba554eb79cd;p=thirdparty%2FPython%2Fcpython.git

bpo-45375: Fix off by one error in buffer allocation (GH-28764)
---

diff --git a/PC/getpathp.c b/PC/getpathp.c
index 98a754976c67..062697b3e9af 100644
--- a/PC/getpathp.c
+++ b/PC/getpathp.c
@@ -266,7 +266,7 @@ canonicalize(wchar_t *buffer, const wchar_t *path)
     }
 
     if (PathIsRelativeW(path)) {
-        wchar_t buff[MAXPATHLEN];
+        wchar_t buff[MAXPATHLEN + 1];
         if (!GetCurrentDirectoryW(MAXPATHLEN, buff)) {
             return _PyStatus_ERR("unable to find current working directory");
         }