dhcpv6: Check NULL pointer dereference

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index 7d89bf7..574b19e 100644 (file)
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -471,7 +471,8 @@ static int set_addresses(GDHCPClient *dhcp_client,
 
                dhcp->nameservers = nameservers;
 
-               for (i = 0; dhcp->nameservers[i] != NULL; i++)
+               for (i = 0; dhcp->nameservers != NULL &&
+                                       dhcp->nameservers[i] != NULL; i++)
                        __connman_service_nameserver_append(service,
                                                        dhcp->nameservers[i],
                                                        FALSE);
@@ -498,7 +499,8 @@ static int set_addresses(GDHCPClient *dhcp_client,
 
                dhcp->timeservers = timeservers;
 
-               for (i = 0; dhcp->timeservers[i] != NULL; i++)
+               for (i = 0; dhcp->timeservers != NULL &&
+                                       dhcp->timeservers[i] != NULL; i++)
                        __connman_service_timeserver_append(service,
                                                        dhcp->timeservers[i]);
        } else