fix: check for existence of dhcp6 FQDN first

Check that dhcpv6.Options.FQDN() is not nil before trying to use it. This fixes DHCPv6 on GCP. Signed-off-by: Seán C McCord <ulexus@gmail.com>
siderolabs · Sep 24, 2021 · b1b6d61 · b1b6d61
1 parent 519999b
commit b1b6d61
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/internal/app/machined/pkg/controllers/network/operator/dhcp6.go b/internal/app/machined/pkg/controllers/network/operator/dhcp6.go
@@ -177,7 +177,7 @@ func (d *DHCP6) parseReply(reply *dhcpv6.Message) {
 		d.resolvers = nil
 	}
 
-	if len(reply.Options.FQDN().DomainName.Labels) > 0 {
+	if reply.Options.FQDN() != nil && len(reply.Options.FQDN().DomainName.Labels) > 0 {
 		d.hostname = []network.HostnameSpecSpec{
 			{
 				Hostname:    reply.Options.FQDN().DomainName.Labels[0],