From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sun, 17 May 2026 23:40:44 +0000 (+0900)
Subject: network/address: drop duplicated address earlier
X-Git-Tag: v261-rc1~123
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e61ac7cd2731336f8bfb8d68dc492cc3178f4c54;p=thirdparty%2Fsystemd.git

network/address: drop duplicated address earlier

network_adjust_dhcp_server() searches network->addresses_by_section,
hence without this change, an address entry picked by
network_adjust_dhcp_server() may be detached and freed by the cleanup
function.
---

diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
index 01eef634f43..193c4a04b5f 100644
--- a/src/network/networkd-address.c
+++ b/src/network/networkd-address.c
@@ -2478,6 +2478,9 @@ int network_drop_invalid_addresses(Network *network) {
                 assert(r > 0);
         }
 
+        /* Detach duplicated entries now. */
+        duplicated_addresses = set_free(duplicated_addresses);
+
         r = network_adjust_dhcp_server(network, &addresses);
         if (r < 0)
                 return r;