Fix f488 - clear lwt topic and payload on free

embhorn · embhorn · commit 5352a060a9e8 · 2026-03-16T13:30:58.000-05:00
diff --git a/src/mqtt_broker.c b/src/mqtt_broker.c
@@ -1202,9 +1202,11 @@ static void BrokerClient_Free(BrokerClient* bc)
 #endif
 #ifdef WOLFMQTT_BROKER_WILL
     if (bc->will_topic) {
+        XMEMSET(bc->will_topic, 0, XSTRLEN(bc->will_topic) + 1);
         WOLFMQTT_FREE(bc->will_topic);
     }
     if (bc->will_payload) {
+        XMEMSET(bc->will_payload, 0, bc->will_payload_len);
         WOLFMQTT_FREE(bc->will_payload);
     }
 #endif

Original file line number	Diff line number	Diff line change
`@@ -1202,9 +1202,11 @@ static void BrokerClient_Free(BrokerClient* bc)`
`1202`	`1202`	`#endif`
`1203`	`1203`	`#ifdef WOLFMQTT_BROKER_WILL`
`1204`	`1204`	`if (bc->will_topic) {`
	`1205`	`+ XMEMSET(bc->will_topic, 0, XSTRLEN(bc->will_topic) + 1);`
`1205`	`1206`	`WOLFMQTT_FREE(bc->will_topic);`
`1206`	`1207`	`}`
`1207`	`1208`	`if (bc->will_payload) {`
	`1209`	`+ XMEMSET(bc->will_payload, 0, bc->will_payload_len);`
`1208`	`1210`	`WOLFMQTT_FREE(bc->will_payload);`
`1209`	`1211`	`}`
`1210`	`1212`	`#endif`