diff --git a/net/core/filter.c b/net/core/filter.c index 0c2666e041d3..b79a070fa824 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -5807,7 +5807,7 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params, neigh = __ipv6_neigh_lookup_noref_stub(dev, dst); } - if (!neigh) + if (!neigh || !(neigh->nud_state & NUD_VALID)) return BPF_FIB_LKUP_RET_NO_NEIGH; return bpf_fib_set_fwd_params(params, neigh, dev, mtu); @@ -5922,7 +5922,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params, * not needed here. */ neigh = __ipv6_neigh_lookup_noref_stub(dev, dst); - if (!neigh) + if (!neigh || !(neigh->nud_state & NUD_VALID)) return BPF_FIB_LKUP_RET_NO_NEIGH; return bpf_fib_set_fwd_params(params, neigh, dev, mtu);