Index: b/src/plugins/lanplus/lanplus.c
===================================================================
--- a/src/plugins/lanplus/lanplus.c
+++ b/src/plugins/lanplus/lanplus.c
@@ -2255,6 +2255,8 @@ ipmi_lanplus_send_payload(
 			if (! payload->payload.sol_packet.packet_sequence_number)
 			{
 				/* We're just sending an ACK.  No need to retry. */
+				free(msg_data);
+				msg_data = NULL;
 				break;
 			}