sd-dhcp6-client: add missing address existence check

This adds similar check as 58da18251f468de9de4cc7b36804c924e2fd4421.

diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c
index 84bc739bba27ca46d5574078f92798d3622d8fcf..5a15f15921372b28712517d06292d5b4f7efcfd7 100644 (file)
--- a/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libsystemd-network/sd-dhcp6-client.c
@@ -819,7 +819,7 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) {
         case DHCP6_STATE_REBIND:
                 message->type = DHCP6_MESSAGE_REBIND;
 
-                if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA)) {
+                if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA) && client->lease->ia.addresses) {
                         r = dhcp6_option_append_ia(&opt, &optlen, &client->lease->ia);
                         if (r < 0)
                                 return r;