Changeset 4150 in vbox for trunk/src/VBox/Additions/WINNT

Timestamp:

Aug 14, 2007 1:42:06 PM (18 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

23636

Message:

Safety precaution

File:

• trunk/src/VBox/Additions/WINNT/Graphics/Miniport/VBoxVideo.cpp (modified) (1 diff)

trunk/src/VBox/Additions/WINNT/Graphics/Miniport/VBoxVideo.cpp

@@ -748 +748 @@
     dprintf(("VBoxVideo::vboxMapAdapterMemory 0x%08X[0x%X]\n", ulOffset, ulSize));
 
+    if (!ulSize)
+    {
+        dprintf(("Illegal length 0!\n"));
+        return ERROR_INVALID_PARAMETER;
+    }
+
     PHYSICAL_ADDRESS FrameBuffer;
     FrameBuffer.QuadPart = VBE_DISPI_LFB_PHYSICAL_ADDRESS + ulOffset;