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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-12-06 21:55:20 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-12-09 13:14:02 +0100 |
| commit | bffc124b6fe37d0ae9b428d104efb426403bb5c9 (patch) | |
| tree | 8683e59cde2b45690035a3303ceab4fe4421068c /net | |
| parent | db3b665dd77b34e34df00e17d7b299c98fcfb2c5 (diff) | |
| download | linux-bffc124b6fe37d0ae9b428d104efb426403bb5c9.tar.gz linux-bffc124b6fe37d0ae9b428d104efb426403bb5c9.tar.bz2 linux-bffc124b6fe37d0ae9b428d104efb426403bb5c9.zip | |
netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END
Only NFTA_SET_ELEM_KEY and NFTA_SET_ELEM_FLAGS make sense for elements
whose NFT_SET_ELEM_INTERVAL_END flag is set on.
Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 062b73a83af0..0db2784fee9a 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4756,14 +4756,20 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, if (nla[NFTA_SET_ELEM_DATA] == NULL && !(flags & NFT_SET_ELEM_INTERVAL_END)) return -EINVAL; - if (nla[NFTA_SET_ELEM_DATA] != NULL && - flags & NFT_SET_ELEM_INTERVAL_END) - return -EINVAL; } else { if (nla[NFTA_SET_ELEM_DATA] != NULL) return -EINVAL; } + if ((flags & NFT_SET_ELEM_INTERVAL_END) && + (nla[NFTA_SET_ELEM_DATA] || + nla[NFTA_SET_ELEM_OBJREF] || + nla[NFTA_SET_ELEM_TIMEOUT] || + nla[NFTA_SET_ELEM_EXPIRATION] || + nla[NFTA_SET_ELEM_USERDATA] || + nla[NFTA_SET_ELEM_EXPR])) + return -EINVAL; + timeout = 0; if (nla[NFTA_SET_ELEM_TIMEOUT] != NULL) { if (!(set->flags & NFT_SET_TIMEOUT)) |