Module: kamailio Branch: master Commit: f109109a194abcc105f6d6a2e398d28e21870941 URL: https://github.com/kamailio/kamailio/commit/f109109a194abcc105f6d6a2e398d28… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2016-11-04T09:49:50+01:00 app_lua: safety check of returned anchor before using it --- Modified: modules/app_lua/app_lua_sr.c --- Diff: https://github.com/kamailio/kamailio/commit/f109109a194abcc105f6d6a2e398d28… Patch: https://github.com/kamailio/kamailio/commit/f109109a194abcc105f6d6a2e398d28… --- diff --git a/modules/app_lua/app_lua_sr.c b/modules/app_lua/app_lua_sr.c index ba270f5..abfedfa 100644 --- a/modules/app_lua/app_lua_sr.c +++ b/modules/app_lua/app_lua_sr.c @@ -744,6 +744,12 @@ static int lua_sr_hdr_append (lua_State *L) memcpy(hdr, txt, len); anchor = anchor_lump(env_L->msg, hf->name.s + hf->len - env_L->msg->buf, 0, 0); + if(anchor==NULL) + { + LM_ERR("unable to get the anchor\n"); + pkg_free(hdr); + return 0; + } if(insert_new_lump_before(anchor, hdr, len, 0) == 0) { LM_ERR("can't insert lump\n");