From b7be6c737a179a76901c872f6b4c1d00552d9a1b Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 16 Jun 2023 15:22:18 +0200 Subject: [PATCH] netfilter: nf_tables: disallow timeout for anonymous sets commit e26d3009efda338f19016df4175f354a9bd0a4ab upstream. Never used from userspace, disallow these parameters. Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/nf_tables_api.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index e21ec3ad8093..d3ba947f4376 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4752,6 +4752,9 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info, if (!(flags & NFT_SET_TIMEOUT)) return -EINVAL; + if (flags & NFT_SET_ANONYMOUS) + return -EOPNOTSUPP; + err = nf_msecs_to_jiffies64(nla[NFTA_SET_TIMEOUT], &desc.timeout); if (err) return err; @@ -4760,6 +4763,10 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info, if (nla[NFTA_SET_GC_INTERVAL] != NULL) { if (!(flags & NFT_SET_TIMEOUT)) return -EINVAL; + + if (flags & NFT_SET_ANONYMOUS) + return -EOPNOTSUPP; + desc.gc_int = ntohl(nla_get_be32(nla[NFTA_SET_GC_INTERVAL])); }