dhcpv6-ia: fix dereference after freeing assignment

[project/odhcpd.git] / src / router.c

diff --git a/src/router.c b/src/router.c
index 9711975..f964a82 100644 (file)
--- a/src/router.c
+++ b/src/router.c
@@ -257,10 +257,10 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
                memcpy(addrs, iface->ia_addr, ipcnt * sizeof(*addrs));
 
                // Check default route
-               if (parse_routes(addrs, ipcnt))
-                       adv.h.nd_ra_router_lifetime = htons(1);
                if (iface->default_router > 1)
                        adv.h.nd_ra_router_lifetime = htons(iface->default_router);
+               else if (parse_routes(addrs, ipcnt))
+                       adv.h.nd_ra_router_lifetime = htons(1);
        }
 
        // Construct Prefix Information options