From de3b8cf76b7bd54364227cd03071aff4745962ab Mon Sep 17 00:00:00 2001
From: Mike Auty <mike.auty@gmail.com>
Date: Fri, 8 Dec 2017 00:50:21 +0000
Subject: [PATCH] Fix exception being thrown in the middle of Nlpdtbfinder for
 layers without validity details.

---
 volatility/framework/automagic/nlpdtbfinder.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/volatility/framework/automagic/nlpdtbfinder.py b/volatility/framework/automagic/nlpdtbfinder.py
index 13d49e8f6..abec2b38a 100644
--- a/volatility/framework/automagic/nlpdtbfinder.py
+++ b/volatility/framework/automagic/nlpdtbfinder.py
@@ -117,6 +117,8 @@ class NlpDtbScanner(interfaces.layers.ScannerInterface):
             supervisor_count = 0
 
             entry_num = 0
+            if len(validity_tests[self._layer_class]) < 1:
+                raise StopIteration
             validity_mask, validity_success = validity_tests[self._layer_class][0]
             for entry in entries:
                 if (entry & validity_mask) == validity_success: