[sr-dev] git:4.4:551a0d0f: core: add safety check to rval_get_tmp_str()

[Victor Seva]

Module: kamailio
Branch: 4.4
Commit: 551a0d0f301bfc9e9ae92614511d073b13954701
URL: https://github.com/kamailio/kamailio/commit/551a0d0f301bfc9e9ae92614511d073b13954701

Author: Victor Seva <linuxmaniac at torreviejawireless.org>
Committer: Victor Seva <linuxmaniac at torreviejawireless.org>
Date: 2017-10-11T18:35:06+02:00

core: add safety check to rval_get_tmp_str()

See #1263

(cherry picked from commit c6e921e45f1257913848110189eab82a34aa2f8b)

---

Modified: rvalue.c

---

Diff:  https://github.com/kamailio/kamailio/commit/551a0d0f301bfc9e9ae92614511d073b13954701.diff
Patch: https://github.com/kamailio/kamailio/commit/551a0d0f301bfc9e9ae92614511d073b13954701.patch

---

diff --git a/rvalue.c b/rvalue.c
index a38a5246ea..921b4a0516 100644
--- a/rvalue.c
+++ b/rvalue.c
@@ -1102,7 +1102,11 @@ int rval_get_tmp_str(struct run_act_ctx* h, struct sip_msg* msg,
 {
 	avp_t* r_avp;
 	int i;
-	
+
+	if(rv==NULL) {
+		return -1;
+	}
+
 	switch(rv->type){
 		case RV_INT:
 			tmpv->s=sint2strbuf(rv->v.l, tmp_cache->i2s,