From 2e2957d9288f2f727d527670a2bc81c27582fcdd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Gardou?= <jerome.gardou@reactos.org>
Date: Tue, 21 Oct 2014 10:45:55 +0000
Subject: [PATCH] [WIN32K]  - reference the current process info structure
 while we're leaving win32k. The process can die anytime while we're not
 looking. CORE-8663 #resolve

svn path=/trunk/; revision=64863
---
 reactos/win32ss/user/ntuser/message.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/reactos/win32ss/user/ntuser/message.c b/reactos/win32ss/user/ntuser/message.c
index 4dbe59f307c..8d6a76cab2d 100644
--- a/reactos/win32ss/user/ntuser/message.c
+++ b/reactos/win32ss/user/ntuser/message.c
@@ -2882,6 +2882,13 @@ NtUserWaitForInputIdle( IN HANDLE hProcess,
 
     TRACE("WFII: ppi %p\n", W32Process);
     TRACE("WFII: waiting for %p\n", Handles[1] );
+
+    /*
+     * We must add a refcount to our current PROCESSINFO,
+     * because anything could happen (including process death) we're leaving win32k
+     */
+    IntReferenceProcessInfo(W32Process);
+
     do
     {
         UserLeave();
@@ -2935,6 +2942,7 @@ WaitExit:
        pti->pClientInfo->dwTIFlags = pti->TIF_flags;
     }
     W32Process->W32PF_flags &= ~W32PF_WAITFORINPUTIDLE;
+    IntDereferenceProcessInfo(W32Process);
     ObDereferenceObject(Process);
     UserLeave();
     return Status;