From 0ec8fc83a83914d2ae97e52529e98ce63aaf831c Mon Sep 17 00:00:00 2001
From: Sergey Miryanov <sergey.miryanov@gmail.com>
Date: Thu, 8 May 2025 04:09:20 -0700
Subject: gh-133597: Fix memory leak if error occurred in
 _sys_getwindowsversion_from_kernel32 (GH-133598)

---
 Python/sysmodule.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Python')

diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 00dce4527fb..41b9a6b276a 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -1670,6 +1670,9 @@ _sys_getwindowsversion_from_kernel32(void)
         !GetFileVersionInfoW(kernel32_path, 0, verblock_size, verblock) ||
         !VerQueryValueW(verblock, L"", (LPVOID)&ffi, &ffi_len)) {
         PyErr_SetFromWindowsErr(0);
+        if (verblock) {
+            PyMem_RawFree(verblock);
+        }
         return NULL;
     }
 
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