[sr-dev] git:master:d8955fc3: kazoo: fixed crash when json body is NULL

[Sergey Safarov]

Module: kamailio
Branch: master
Commit: d8955fc350b48d0c4ca359d03cb9954a48998658
URL: https://github.com/kamailio/kamailio/commit/d8955fc350b48d0c4ca359d03cb9954a48998658

Author: Sergey Safarov <s.safarov at gmail.com>
Committer: Sergey Safarov <s.safarov at gmail.com>
Date: 2021-09-15T16:14:13+03:00

kazoo: fixed crash when json body is NULL

fixes GH #2794

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Modified: src/modules/kazoo/kz_json.c

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Diff:  https://github.com/kamailio/kamailio/commit/d8955fc350b48d0c4ca359d03cb9954a48998658.diff
Patch: https://github.com/kamailio/kamailio/commit/d8955fc350b48d0c4ca359d03cb9954a48998658.patch

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diff --git a/src/modules/kazoo/kz_json.c b/src/modules/kazoo/kz_json.c
index 5ab8f68c79..0e5f2e8b10 100644
--- a/src/modules/kazoo/kz_json.c
+++ b/src/modules/kazoo/kz_json.c
@@ -276,6 +276,11 @@ struct json_object* kz_json_parse(const char *str)
     struct json_tokener* tok;
     struct json_object* obj;
 
+    if (str == NULL || str[0] == 0) {
+      LM_ERR("Error parsing json: empty string\n");
+      return NULL;
+    }
+
     tok = json_tokener_new();
     if (!tok) {
       LM_ERR("Error parsing json: could not allocate tokener\n");