From a42fff541f3a527657eeb05a6a579e68b547b4df Mon Sep 17 00:00:00 2001
From: William Metcalf <william.metcalf@gmail.com>
Date: Wed, 2 Jun 2010 15:06:52 -0500
Subject: [PATCH] fix for potential NULL deref on error in detect-http-method.c

---
 src/detect-http-method.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/detect-http-method.c b/src/detect-http-method.c
index c5bfa326a0..5cd7a3b24e 100644
--- a/src/detect-http-method.c
+++ b/src/detect-http-method.c
@@ -232,8 +232,10 @@ static int DetectHttpMethodSetup(DetectEngineCtx *de_ctx, Signature *s, char *st
 
 error:
     if (data != NULL) DetectHttpMethodFree(data);
-    if (nm->ctx != NULL) DetectHttpMethodFree(nm);
-    if (nm != NULL) SCFree(nm);
+    if (nm != NULL) {
+        if (nm->ctx != NULL) DetectHttpMethodFree(nm);
+        SCFree(nm);
+    }
     SCReturnInt(-1);
 }