[WIN32K]

- Avoid invalid memory write. See issue #5969 for more details. svn path=/trunk/; revision=53583
2026-08-27 19:25:36 +00:00 · 2011-09-04 15:58:48 +00:00
parent cb386402eb
commit cb1f1bd555
1 changed files with 7 additions and 4 deletions
@@ -497,11 +497,14 @@ GetW32ThreadInfo(VOID)
    pti->pClientInfo = pci;
    _SEH2_TRY
    {
-        ProbeForWrite( Teb,
-                       sizeof(TEB),
-                       sizeof(ULONG));
+        if(Teb)
+        {    
+            ProbeForWrite( Teb,
+                           sizeof(TEB),
+                           sizeof(ULONG));

-        Teb->Win32ThreadInfo = (PW32THREAD) pti;
+            Teb->Win32ThreadInfo = (PW32THREAD) pti;
+        }

        pci->ppi = ppi;
        pci->fsHooks = pti->fsHooks;