netfilter: nft_dynset: disallow object maps

Do not allow to insert elements from datapath to objects maps. Fixes: 8aeff92 ("netfilter: nf_tables: add stateful object reference to set elements") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Florian Westphal <fw@strlen.de>
mariux64 · Aug 15, 2023 · 23185c6 · 23185c6
1 parent 02c6c24
commit 23185c6
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c
@@ -191,6 +191,9 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
 	if (IS_ERR(set))
 		return PTR_ERR(set);
 
+	if (set->flags & NFT_SET_OBJECT)
+		return -EOPNOTSUPP;
+
 	if (set->ops->update == NULL)
 		return -EOPNOTSUPP;