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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-01-15 12:50:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-25 15:27:51 -0800 |
| commit | 4a45e7e7d2a628341790819fc5b030f15a00613a (patch) | |
| tree | ccbc3b337f03d714cb4e4835f566c0ce19af7c54 /net | |
| parent | b56bce52f9f6bc79197ddd00f9db16e5d46cacde (diff) | |
| download | linux-4a45e7e7d2a628341790819fc5b030f15a00613a.tar.gz | |
netfilter: nf_tables: reject NFT_SET_CONCAT with not field length description
[ Upstream commit 113661e07460a6604aacc8ae1b23695a89e7d4b3 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -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 a4e5d877956f96..2702294ac46c60 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4773,8 +4773,12 @@ 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; } |