diff --git a/drivers/filesystems/cdfs/create.c b/drivers/filesystems/cdfs/create.c
index 09a054bf1b7..dde7a2404d2 100644
--- a/drivers/filesystems/cdfs/create.c
+++ b/drivers/filesystems/cdfs/create.c
@@ -222,6 +222,11 @@ CdfsCreateFile(PDEVICE_OBJECT DeviceObject,
         return STATUS_ACCESS_DENIED;
     }
 
+    if (BooleanFlagOn(DeviceExt->Flags, VCB_VOLUME_LOCKED))
+    {
+        return STATUS_ACCESS_DENIED;
+    }
+
     Status = CdfsOpenFile(DeviceExt,
         FileObject,
         &FileObject->FileName);