From c464f4f2e3c150593d4282062fc8e193683a871f Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber@reactos.org>
Date: Thu, 1 Feb 2018 11:06:03 +0100
Subject: [PATCH] [WIN32K:NTUSER] Handle allocation failure in
 PopupMenuWndProc. CORE-14222

---
 win32ss/user/ntuser/menu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/win32ss/user/ntuser/menu.c b/win32ss/user/ntuser/menu.c
index 4de96e892ac..8432f3a83fd 100644
--- a/win32ss/user/ntuser/menu.c
+++ b/win32ss/user/ntuser/menu.c
@@ -4436,6 +4436,10 @@ PopupMenuWndProc(
         }
         Wnd->fnid = FNID_MENU;
         pPopupMenu = DesktopHeapAlloc( Wnd->head.rpdesk, sizeof(POPUPMENU) );
+        if (pPopupMenu == NULL)
+        {
+            return TRUE;
+        }
         pPopupMenu->posSelectedItem = NO_SELECTED_ITEM;
         pPopupMenu->spwndPopupMenu = Wnd;
         ((PMENUWND)Wnd)->ppopupmenu = pPopupMenu;