fix(network): also drop reference for DHCP server address

debian/changelog

@@ -1,3 +1,9 @@
+systemd (255.2-4deepin68) unstable; urgency=medium
+
+  * network: also drop reference for DHCP server address when freeing an Address object
+
+ -- deepin-ci-robot <packages@deepin.org>  Thu, 03 Sep 2026 08:46:25 +0800
+
 systemd (255.2-4deepin67) unstable; urgency=medium
 
   * core/dbus: do not flush a user manager's bus that is not RUNNING

debian/patches/fix-network-drop-dhcp-server-address-reference.patch

@@ -0,0 +1,23 @@
+From 8ae3a4f5e282a1fb024e7bb5d6cf1b83037a2395 Mon Sep 17 00:00:00 2001
+From: Yu Watanabe <watanabe.yu+github@gmail.com>
+Date: Sat, 23 Dec 2023 01:21:22 +0900
+Subject: [PATCH] network/address: also drop reference for DHCP server address
+
+The Address object should never freed after it is referenced.
+So, this should not change any behavior. Just for safety.
+
+diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
+index bcd3ae6621..629c4d697f 100644
+--- a/src/network/networkd-address.c
++++ b/src/network/networkd-address.c
+@@ -201,6 +201,9 @@ Address *address_free(Address *address) {
+         if (address->network) {
+                 assert(address->section);
+                 ordered_hashmap_remove(address->network->addresses_by_section, address->section);
++
++                if (address->network->dhcp_server_address == address)
++                        address->network->dhcp_server_address = NULL;
+         }
+
+         if (address->link) {
+

debian/patches/series

@@ -72,3 +72,4 @@ fix-resolved-reduce-dnssec-transactions.patch
 fix-sd-journal-reduce-fstat-and-immutable-flag.patch
 fix-sysusers-gracefully-handle-existing-group-in-gshadow.patch
 fix-dbus-skip-flush-when-bus-not-running.patch
+fix-network-drop-dhcp-server-address-reference.patch