diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 6c062b2509b9..e66fee99ed3e 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -176,10 +176,15 @@ struct nft_ctx { bool report; }; +enum nft_data_desc_flags { + NFT_DATA_DESC_SETELEM = (1 << 0), +}; + struct nft_data_desc { enum nft_data_types type; unsigned int size; unsigned int len; + unsigned int flags; }; int nft_data_init(const struct nft_ctx *ctx, struct nft_data *data, diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index df79ea6004a5..b36728cfc5d8 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4865,6 +4865,7 @@ static int nft_setelem_parse_data(struct nft_ctx *ctx, struct nft_set *set, desc->type = dtype; desc->size = NFT_DATA_VALUE_MAXLEN; desc->len = set->dlen; + desc->flags = NFT_DATA_DESC_SETELEM; return nft_data_init(ctx, data, desc, attr); } @@ -8677,6 +8678,9 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data, return PTR_ERR(chain); if (nft_is_base_chain(chain)) return -EOPNOTSUPP; + if (desc->flags & NFT_DATA_DESC_SETELEM && + chain->flags & NFT_CHAIN_BINDING) + return -EINVAL; chain->use++; data->verdict.chain = chain;