dhcpv6: Check NULL pointer dereference

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index bf764c8..7d89bf7 100644 (file)
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -291,7 +291,8 @@ static void info_req_cb(GDHCPClient *dhcp_client, gpointer user_data)
 
                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);
@@ -318,7 +319,8 @@ static void info_req_cb(GDHCPClient *dhcp_client, gpointer user_data)
 
                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