ripd: fix null-pointer dereference

Fixes #13416.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

diff --git a/ripd/rip_interface.c b/ripd/rip_interface.c
index b383be042a4c8cf18ed05e3e6bc61d449b4b3813..9f1e2d86bfaeb612fa959a16c7240dcd2eed30ee 100644 (file)
--- a/ripd/rip_interface.c
+++ b/ripd/rip_interface.c
@@ -1110,9 +1110,10 @@ void rip_interface_sync(struct interface *ifp)
        struct rip_interface *ri;
 
        ri = ifp->info;
-       ri->ifp = ifp;
-       if (ri)
+       if (ri) {
                ri->rip = ifp->vrf->info;
+               ri->ifp = ifp;
+       }
 }
 
 /* Called when interface structure allocated. */