[jgardou] 64863: [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

Author: jgardou
Date: Tue Oct 21 10:45:55 2014
New Revision: 64863

URL: http://svn.reactos.org/svn/reactos?rev=64863&view=rev
Log:
[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

Modified:
    trunk/reactos/win32ss/user/ntuser/message.c

Modified: trunk/reactos/win32ss/user/ntuser/message.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/messag…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/message.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/message.c	[iso-8859-1] Tue Oct 21 10:45:55 2014
@@ -2882,6 +2882,13 @@
 
     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 @@
        pti->pClientInfo->dwTIFlags = pti->TIF_flags;
     }
     W32Process->W32PF_flags &= ~W32PF_WAITFORINPUTIDLE;
+    IntDereferenceProcessInfo(W32Process);
     ObDereferenceObject(Process);
     UserLeave();
     return Status;