[PATCH 5.4 137/215] netfilter: nf_tables: disallow timeout for anonymous sets

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5.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>

commit e26d3009efda338f19016df4175f354a9bd0a4ab upstream.

Never used from userspace, disallow these parameters.

Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
[Keerthana: code surrounding the patch is different
because nft_set_desc is not present in v4.19-v5.10]
Signed-off-by: Keerthana K <keerthana.kalyanasundaram@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/netfilter/nf_tables_api.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3816,6 +3816,9 @@ static int nf_tables_newset(struct net *
 		if (!(flags & NFT_SET_TIMEOUT))
 			return -EINVAL;
 
+		if (flags & NFT_SET_ANONYMOUS)
+			return -EOPNOTSUPP;
+
 		err = nf_msecs_to_jiffies64(nla[NFTA_SET_TIMEOUT], &timeout);
 		if (err)
 			return err;
@@ -3824,6 +3827,10 @@ static int nf_tables_newset(struct net *
 	if (nla[NFTA_SET_GC_INTERVAL] != NULL) {
 		if (!(flags & NFT_SET_TIMEOUT))
 			return -EINVAL;
+
+		if (flags & NFT_SET_ANONYMOUS)
+			return -EOPNOTSUPP;
+
 		gc_int = ntohl(nla_get_be32(nla[NFTA_SET_GC_INTERVAL]));
 	}
 






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