From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Tue, 30 Mar 2021 07:51:55 +0000 (-0700)
Subject: bpo-43637: Fix a possible memory leak in winreg.SetValueEx() (GH-25038)
X-Git-Tag: v3.9.3~9
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f79577ddbd7c87b6cc1810e98ee4eaca7ae50699;p=thirdparty%2FPython%2Fcpython.git

bpo-43637: Fix a possible memory leak in winreg.SetValueEx() (GH-25038)

(cherry picked from commit dfeec347f21b86879ba8f27f567bb275b243f1bc)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>
---

diff --git a/PC/winreg.c b/PC/winreg.c
index 01e3e9f14ba2..fd1ccb7b83e8 100644
--- a/PC/winreg.c
+++ b/PC/winreg.c
@@ -1788,6 +1788,7 @@ winreg_SetValueEx_impl(PyObject *module, HKEY key,
     if (PySys_Audit("winreg.SetValue", "nunO",
                     (Py_ssize_t)key, value_name, (Py_ssize_t)type,
                     value) < 0) {
+        PyMem_Free(data);
         return NULL;
     }
     Py_BEGIN_ALLOW_THREADS