From c0c7adf28d1e454b393b860407b632263911e179 Mon Sep 17 00:00:00 2001
From: thexai <58434170+thexai@users.noreply.github.com>
Date: Sat, 25 Jul 2026 19:46:26 +0200
Subject: [PATCH] gh-152433: Windows: fix ``ctypes`` MemoryError in UWP build

UWP does not allow allocating memory with code execution permissions.
---
 Modules/_ctypes/malloc_closure.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Modules/_ctypes/malloc_closure.c b/Modules/_ctypes/malloc_closure.c
index 62c7aa5d6affbf..967a7612298f65 100644
--- a/Modules/_ctypes/malloc_closure.c
+++ b/Modules/_ctypes/malloc_closure.c
@@ -68,10 +68,17 @@ static void more_core(void)
 
     /* allocate a memory block */
 #ifdef MS_WIN32
+#ifdef MS_WINDOWS_DESKTOP
     item = (ITEM *)VirtualAlloc(NULL,
                                            count * sizeof(ITEM),
                                            MEM_COMMIT,
                                            PAGE_EXECUTE_READWRITE);
+#else
+    item = (ITEM*)VirtualAllocFromApp(NULL,
+                                      count * sizeof(ITEM),
+                                      MEM_COMMIT | MEM_RESERVE,
+                                      PAGE_READWRITE);
+#endif
     if (item == NULL)
         return;
 #else