netfilter: nf_tables_ipv6: setup pktinfo transport field on failure to parse

Make sure the pktinfo protocol fields are initialized if this fails to
parse the transport header.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/net/netfilter/nf_tables_ipv6.h b/include/net/netfilter/nf_tables_ipv6.h
index 6aeee47..1e0ffd5 100644 (file)
--- a/include/net/netfilter/nf_tables_ipv6.h
+++ b/include/net/netfilter/nf_tables_ipv6.h
@@ -15,9 +15,10 @@ nft_set_pktinfo_ipv6(struct nft_pktinfo *pkt,
        nft_set_pktinfo(pkt, skb, state);
 
        protohdr = ipv6_find_hdr(pkt->skb, &thoff, -1, &frag_off, NULL);
-       /* If malformed, drop it */
-       if (protohdr < 0)
+       if (protohdr < 0) {
+               nft_set_pktinfo_proto_unspec(pkt, skb);
                return -1;
+       }
 
        pkt->tprot_set = true;
        pkt->tprot = protohdr;