[pschweitzer] 65860: [NTOSKRNL] Also lock IopSecurityResource during access check in IopParseDevice

Author: pschweitzer
Date: Sun Dec 28 13:15:14 2014
New Revision: 65860

URL: http://svn.reactos.org/svn/reactos?rev=65860&view=rev
Log:
[NTOSKRNL]
Also lock IopSecurityResource during access check in IopParseDevice

Modified:
    trunk/reactos/ntoskrnl/io/iomgr/file.c

Modified: trunk/reactos/ntoskrnl/io/iomgr/file.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/file.c?r…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/file.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/file.c	[iso-8859-1] Sun Dec 28 13:15:14 2014
@@ -393,6 +393,9 @@
         (!(OpenPacket->RelatedFileObject) || (VolumeOpen)) &&
         !(OpenPacket->Override))
     {
+        KeEnterCriticalRegion();
+        ExAcquireResourceSharedLite(&IopSecurityResource, TRUE);
+
         /* Check if a device object is being parsed  */
         if (!RemainingName->Length)
         {
@@ -504,6 +507,9 @@
             }
         }
 
+        ExReleaseResourceLite(&IopSecurityResource);
+        KeLeaveCriticalRegion();
+
         /* Check if we hold the lock */
         if (LockHeld)
         {