From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sat, 5 Feb 2022 05:24:42 +0000 (+0900)
Subject: sd-dhcp6-client: add missing address existence check
X-Git-Tag: v251-rc1~291^2~65
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=84483215715162038215b90c86290c5bb4e1c651;p=thirdparty%2Fsystemd.git

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 84bc739bba2..5a15f159213 100644
--- 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;