From 5ce3d1b899dc27adb853a19f07da35b7deeea9f0 Mon Sep 17 00:00:00 2001
From: Vern Paxson <vern@icir.org>
Date: Fri, 29 Jun 2018 11:30:21 -0700
Subject: [PATCH] bug fix for recent memory leak patch

---
 src/RE.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/RE.cc b/src/RE.cc
index 4e29fa8e92..cd37da18e9 100644
--- a/src/RE.cc
+++ b/src/RE.cc
@@ -168,7 +168,8 @@ int Specific_RE_Matcher::CompileSet(const string_list& set, const int_list& idx)
 
 			if ( set_nfa != nfa )
 				Unref(set_nfa);
-			Unref(nfa);
+			else
+				Unref(nfa);
 			nfa = 0;
 
 			return 0;