diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-01-15 12:50:29 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-01-17 12:02:51 +0100 |
| commit | 113661e07460a6604aacc8ae1b23695a89e7d4b3 (patch) | |
| tree | 0413fe9283cd9d041176cd2e6cd5611994ac8d0c | |
| parent | 6b1ca88e4bb63673dc9f9c7f23c899f22c3cb17a (diff) | |
netfilter: nf_tables: reject NFT_SET_CONCAT with not field length description
It is still possible to set on the NFT_SET_CONCAT flag by specifying a
set size and no field description, report EINVAL in such case.
Fixes: 1b6345d4160e ("netfilter: nf_tables: check NFT_SET_CONCAT flag if field_count is specified")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 88a6a858383b..4b55533ce5ca 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -5070,8 +5070,12 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info, if (err < 0) return err; - if (desc.field_count > 1 && !(flags & NFT_SET_CONCAT)) + if (desc.field_count > 1) { + if (!(flags & NFT_SET_CONCAT)) + return -EINVAL; + } else if (flags & NFT_SET_CONCAT) { return -EINVAL; + } } else if (flags & NFT_SET_CONCAT) { return -EINVAL; } |