FS-9401: [core,mod_amqp] fix leak in usage of hash itterator

src/mod/event_handlers/mod_amqp/mod_amqp_logging.c

@@ -94,12 +94,13 @@ switch_status_t mod_amqp_logging_recv(const switch_log_node_t *node, switch_log_
 
 			if (switch_queue_trypush(logging->send_queue, msg) != SWITCH_STATUS_SUCCESS) {
 				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AMQP logging message queue full. Messages will be dropped!\n");
-				return SWITCH_STATUS_SUCCESS;
+				switch_safe_free(hi);
+				goto done;
 			}
 		}
 	}
 
-
+ done:
 	switch_safe_free(json);
 	return SWITCH_STATUS_SUCCESS;
 }

src/switch_event.c

@@ -2752,6 +2752,7 @@ static void unsub_all_switch_event_channel(void)
 		free(head);
 	}
 
+	switch_safe_free(hi);
 	switch_thread_rwlock_unlock(event_channel_manager.rwlock);
 }
 

src/switch_jitterbuffer.c

@@ -1039,7 +1039,7 @@ SWITCH_DECLARE(uint32_t) switch_jb_pop_nack(switch_jb_t *jb)
 
  top:
 
-	for (hi = switch_core_hash_first(jb->missing_seq_hash); hi; hi = switch_core_hash_next(&hi)) {
+	for (hi = switch_core_hash_first_iter(jb->missing_seq_hash, hi); hi; hi = switch_core_hash_next(&hi)) {
 		uint16_t seq;
 		//const char *token;
 		switch_time_t then = 0;
@@ -1076,6 +1076,8 @@ SWITCH_DECLARE(uint32_t) switch_jb_pop_nack(switch_jb_t *jb)
 		}
 	}
 
+	switch_safe_free(hi);
+
 	if (least && switch_core_inthash_delete(jb->missing_seq_hash, (uint32_t)htons(least))) {
 		jb_debug(jb, 3, "Found NACKABLE seq %u\n", least);
 		nack = (uint32_t) htons(least);