rule-parser: ignore duplicated msg keyword

diff --git a/src/detect-msg.c b/src/detect-msg.c
index 6195f00a478f53ceb7ee2b0f8bddd86839994976..5d5a9ad50376b99cb7eeff640adf8b5ec6e837bc 100644 (file)
--- a/src/detect-msg.c
+++ b/src/detect-msg.c
@@ -103,6 +103,10 @@ static int DetectMsgSetup (DetectEngineCtx *de_ctx, Signature *s, const char *ms
         }
     }
 
+    if (s->msg != NULL) {
+        SCLogError(SC_ERR_INVALID_RULE_ARGUMENT, "Duplicated 'msg:' keyword detected!");
+        goto error;
+    }
     s->msg = SCStrdup(str);
     if (s->msg == NULL)
         goto error;