netfilter: nf_tables: do not allow NFT_SET_ELEM_INTERVAL_END flag and data



This combination is not allowed since end interval elements cannot
contain data.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Patrick McHardy <kaber@trash.net>

parent 0165d932

net/netfilter/nf_tables_api.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -2741,6 +2741,9 @@ static int nft_add_set_elem(const struct nft_ctx ctx, struct nft_set set,
		if (nla[NFTA_SET_ELEM_DATA] == NULL &&
		!(elem.flags & NFT_SET_ELEM_INTERVAL_END))
		return -EINVAL;
		if (nla[NFTA_SET_ELEM_DATA] != NULL &&
		elem.flags & NFT_SET_ELEM_INTERVAL_END)
		return -EINVAL;
		} else {
		if (nla[NFTA_SET_ELEM_DATA] != NULL)
		return -EINVAL;