[sr-dev] git:5.1:096de8d0: rtpengine: fixed segfault when using read_sdp_pv

Module: kamailio Branch: 5.1 Commit: 096de8d0979a71005e3f52146252365b53ab6197 URL: https://github.com/kamailio/kamailio/commit/096de8d0979a71005e3f52146252365… Author: Phil Lavin <phil.lavin(a)cloudcall.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2017-11-23T12:54:42+01:00 rtpengine: fixed segfault when using read_sdp_pv - Obtain body pointer fresh from the SIP message as when using read_sdp_pv the body pointer is overwritten --- Modified: src/modules/rtpengine/rtpengine.c --- Diff: https://github.com/kamailio/kamailio/commit/096de8d0979a71005e3f52146252365… Patch: https://github.com/kamailio/kamailio/commit/096de8d0979a71005e3f52146252365… --- diff --git a/src/modules/rtpengine/rtpengine.c b/src/modules/rtpengine/rtpengine.c index e3468d04a8..9704693eee 100644 --- a/src/modules/rtpengine/rtpengine.c +++ b/src/modules/rtpengine/rtpengine.c @@ -3328,6 +3328,7 @@ rtpengine_offer_answer(struct sip_msg *msg, const char *flags, int op, int more) str body, newbody; struct lump *anchor; pv_value_t pv_val; + str cur_body = {0, 0}; dict = rtpp_function_call_ok(&bencbuf, msg, op, flags, &body); if (!dict) @@ -3357,7 +3358,12 @@ rtpengine_offer_answer(struct sip_msg *msg, const char *flags, int op, int more) pkg_free(newbody.s); } else { - anchor = del_lump(msg, body.s - msg->buf, body.len, 0); + /* get the body from the message as body ptr may have changed */ + cur_body.len = 0; + cur_body.s = get_body(msg); + cur_body.len = msg->buf + msg->len - cur_body.s; + + anchor = del_lump(msg, cur_body.s - msg->buf, cur_body.len, 0); if (!anchor) { LM_ERR("del_lump failed\n"); goto error_free;