From b2922b6b50de528a9d957849df764d2350b4d898 Mon Sep 17 00:00:00 2001
From: Jarrod Baumann <jarrod@unixc.org>
Date: Fri, 29 May 2015 23:44:48 -0500
Subject: [PATCH] check for invalid parameter passed to _tr_parse_sparam #531

---
 transformations.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/transformations.c b/transformations.c
index f994e0e805d..69a6259a6c6 100644
--- a/transformations.c
+++ b/transformations.c
@@ -2188,7 +2188,12 @@ char* parse_transformation(str *in, trans_t **tr)
 
 #define _tr_parse_sparam(_p, _p0, _tp, _spec, _ps, _in, _s) \
 	while(is_in_str(_p, _in) && (*_p==' ' || *_p=='\t' || *_p=='\n')) _p++; \
-	if(*_p==PV_MARKER) \
+        if (*_p==TR_PARAM_MARKER) \
+        { \
+		LM_ERR("invalid spec in transformation: %.*s!\n",\
+			_in->len, _in->s); \
+		goto error; \
+	} else if(*_p==PV_MARKER) \
 	{ /* pseudo-variable */ \
 		_spec = (pv_spec_t*)pkg_malloc(sizeof(pv_spec_t)); \
 		if(_spec==NULL) \