[cgutman] 47827: [NTOSKRNL] - Check that the caller passed a valid PDO pointer to IoOpenDeviceRegistryKey

Author: cgutman
Date: Tue Jun 22 15:53:52 2010
New Revision: 47827

URL: http://svn.reactos.org/svn/reactos?rev=47827&view=rev
Log:
[NTOSKRNL]
- Check that the caller passed a valid PDO pointer to IoOpenDeviceRegistryKey

Modified:
    trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c

Modified: trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.…
==============================================================================
--- trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c [iso-8859-1] Tue Jun 22 15:53:52 2010
@@ -3528,6 +3528,8 @@
    else
    {
       DeviceNode = IopGetDeviceNode(DeviceObject);
+      if (!DeviceNode)
+          return STATUS_INVALID_DEVICE_REQUEST;
       KeyNameLength += sizeof(EnumKeyName) - sizeof(UNICODE_NULL) +
                        DeviceNode->InstancePath.Length;
    }