diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-10-17 14:12:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-29 10:12:56 +0200 |
| commit | d77f6908f9cec12857075f138419b8cea359121d (patch) | |
| tree | 448f31946acae990f55ae81efec7c82e685e39d0 /net | |
| parent | efa9dd7e679eac06fba75f1d36b17161b48c02b7 (diff) | |
netfilter: nf_tables: relax NFTA_SET_ELEM_KEY_END set flags requirements
[ Upstream commit 96df8360dbb435cc69f7c3c8db44bf8b1c24cd7b ]
Otherwise EINVAL is bogusly reported to userspace when deleting a set
element. NFTA_SET_ELEM_KEY_END does not need to be set in case of:
- insertion: if not present, start key is used as end key.
- deletion: only start key needs to be specified, end key is ignored.
Hence, relax the sanity check.
Fixes: 88cccd908d51 ("netfilter: nf_tables: NFTA_SET_ELEM_KEY_END requires concat and interval flags")
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 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 460ad341d160..f7a5b8414423 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -5720,8 +5720,9 @@ static bool nft_setelem_valid_key_end(const struct nft_set *set, (NFT_SET_CONCAT | NFT_SET_INTERVAL)) { if (flags & NFT_SET_ELEM_INTERVAL_END) return false; - if (!nla[NFTA_SET_ELEM_KEY_END] && - !(flags & NFT_SET_ELEM_CATCHALL)) + + if (nla[NFTA_SET_ELEM_KEY_END] && + flags & NFT_SET_ELEM_CATCHALL) return false; } else { if (nla[NFTA_SET_ELEM_KEY_END]) |