From: Vladimir Ralev <vladimir.ralev@gmail.com>
Date: Thu, 8 Nov 2018 21:59:59 +0000 (+0200)
Subject: FS-10534 [mod_loopback] Add null pointer check to avoid crashing loopbacks
X-Git-Tag: v1.8.5~1^2~15^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ad2344cb842f2e582c129f8d621d8f93757177ea;p=thirdparty%2Ffreeswitch.git

FS-10534 [mod_loopback] Add null pointer check to avoid crashing loopbacks
---

diff --git a/src/mod/endpoints/mod_loopback/mod_loopback.c b/src/mod/endpoints/mod_loopback/mod_loopback.c
index 1ef3690578..73cc080266 100644
--- a/src/mod/endpoints/mod_loopback/mod_loopback.c
+++ b/src/mod/endpoints/mod_loopback/mod_loopback.c
@@ -831,7 +831,7 @@ static switch_status_t channel_write_frame(switch_core_session_t *session, switc
 	if (switch_test_flag(frame, SFF_CNG) ||
 		(switch_test_flag(tech_pvt, TFLAG_BOWOUT) && switch_test_flag(tech_pvt, TFLAG_BOWOUT_USED))) {
 		switch_core_timer_sync(&tech_pvt->timer);
-		switch_core_timer_sync(&tech_pvt->other_tech_pvt->timer);
+		if (tech_pvt->other_tech_pvt) switch_core_timer_sync(&tech_pvt->other_tech_pvt->timer);
 		return SWITCH_STATUS_SUCCESS;
 	}
 
@@ -991,10 +991,10 @@ static switch_status_t channel_receive_message(switch_core_session_t *session, s
 
 			done = 1;
 			switch_set_flag(tech_pvt, TFLAG_CLEAR);
-			switch_set_flag(tech_pvt->other_tech_pvt, TFLAG_CLEAR);
+			if (tech_pvt->other_tech_pvt) switch_set_flag(tech_pvt->other_tech_pvt, TFLAG_CLEAR);
 
 			switch_core_timer_sync(&tech_pvt->timer);
-			switch_core_timer_sync(&tech_pvt->other_tech_pvt->timer);
+			if (tech_pvt->other_tech_pvt) switch_core_timer_sync(&tech_pvt->other_tech_pvt->timer);
 		}
 		break;
 	default: