From a4243ee919467d2d84e921b95e313dd5aa69457e Mon Sep 17 00:00:00 2001
From: "Roger A. Light" <roger@atchoo.org>
Date: Wed, 29 May 2019 18:42:38 +0100
Subject: [PATCH] Fix double free on exit in mosquitto_pub.

Closes #1280. Thanks to Lucky Saini.
---
 ChangeLog.txt       | 3 +++
 client/pub_client.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/ChangeLog.txt b/ChangeLog.txt
index a98221a3..9f2c31dd 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -43,6 +43,9 @@ Clients:
 - Fix MQTT v5 clients not being able to specify a password without a username.
   Closes #1274.
 
+Clients:
+- Fix double free on exit in mosquitto_pub. Closes #1280.
+
 Documentation:
 - Remove references to Python binding and C++ wrapper in libmosquitto man
   page. Closes #1266.
diff --git a/client/pub_client.c b/client/pub_client.c
index f5521eac..ea7b61e0 100644
--- a/client/pub_client.c
+++ b/client/pub_client.c
@@ -508,6 +508,7 @@ int main(int argc, char *argv[])
 
 	if(cfg.message && cfg.pub_mode == MSGMODE_FILE){
 		free(cfg.message);
+		cfg.message = NULL;
 	}
 	mosquitto_destroy(mosq);
 	mosquitto_lib_cleanup();