01/03: [WIN32K:NTUSER] Handle IntCloneMenu failure in MENU_GetSystemMenu. CORE-12180

[Thomas Faber]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=89217e3df563a4e843b18…

commit 89217e3df563a4e843b18a4c6deca83994834e8e
Author:     Thomas Faber <thomas.faber(a)reactos.org>
AuthorDate: Sat Mar 3 08:19:13 2018 +0100
Commit:     Thomas Faber <thomas.faber(a)reactos.org>
CommitDate: Sat Mar 3 17:18:55 2018 +0100

    [WIN32K:NTUSER] Handle IntCloneMenu failure in MENU_GetSystemMenu. CORE-12180
---
 win32ss/user/ntuser/menu.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/win32ss/user/ntuser/menu.c b/win32ss/user/ntuser/menu.c
index 888b4ea696..dc6656ffb3 100644
--- a/win32ss/user/ntuser/menu.c
+++ b/win32ss/user/ntuser/menu.c
@@ -5120,6 +5120,12 @@ PMENU FASTCALL MENU_GetSystemMenu(PWND Window, PMENU Popup)
       IntMenuItemInfo(Menu, SC_MINIMIZE, FALSE, &ItemInfoSet, TRUE, NULL);
 
       NewMenu = IntCloneMenu(Menu);
+      if (NewMenu == NULL)
+      {
+         IntDestroyMenuObject(Menu, FALSE);
+         IntDestroyMenuObject(SysMenu, FALSE);
+         return NULL;
+      }
 
       IntReleaseMenuObject(NewMenu);
       UserSetMenuDefaultItem(NewMenu, SC_CLOSE, FALSE);