From 147fc6de50182217b9976df5f80b1d09c2df9405 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 24 Jun 2017 07:50:40 -0400
Subject: [PATCH] Add check to ensure security policy is instantiated

---
 MagickCore/policy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MagickCore/policy.c b/MagickCore/policy.c
index 8c8aa5379..39d1a11d3 100644
--- a/MagickCore/policy.c
+++ b/MagickCore/policy.c
@@ -1074,6 +1074,8 @@ MagickExport MagickBooleanType SetMagickSecurityPolicy(const char *policy,
   MagickBooleanType
     status;
   
+  if (IsPolicyCacheInstantiated(exception) == MagickFalse)
+    return((PolicyInfo *) NULL);
   LockSemaphoreInfo(policy_semaphore);
   ResetLinkedListIterator(policy_cache);
   p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache);
-- 
2.50.1