dhcp6, radv: only accept valid ifindex

[thirdparty/systemd.git] / src / libsystemd-network / sd-dhcp6-client.c

diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c
index e1572703e2becc713bcb9a715c775508cd334116..7a8823cce93e45fa0161fa8a5e2eac3e82960841 100644 (file)
--- a/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libsystemd-network/sd-dhcp6-client.c
@@ -159,7 +159,7 @@ int sd_dhcp6_client_set_callback(
 int sd_dhcp6_client_set_ifindex(sd_dhcp6_client *client, int ifindex) {
 
         assert_return(client, -EINVAL);
-        assert_return(ifindex >= -1, -EINVAL);
+        assert_return(ifindex > 0, -EINVAL);
         assert_return(IN_SET(client->state, DHCP6_STATE_STOPPED), -EBUSY);
 
         client->ifindex = ifindex;