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netfilter: nf_tables: do not allow NFT_SET_ELEM_INTERVAL_END flag and data

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This combination is not allowed since end interval elements cannot
contain data.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Pablo Neira Ayuso 2014-02-07 12:53:07 +01:00
parent 0165d9325d
commit bd7fc645da
1 changed files with 3 additions and 0 deletions
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3
net/netfilter/nf_tables_api.c
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@ -2741,6 +2741,9 @@ static int nft_add_set_elem(const struct nft_ctx *ctx, struct nft_set *set,
if (nla[NFTA_SET_ELEM_DATA] == NULL &&
!(elem.flags & NFT_SET_ELEM_INTERVAL_END))
return -EINVAL;
if (nla[NFTA_SET_ELEM_DATA] != NULL &&
elem.flags & NFT_SET_ELEM_INTERVAL_END)
return -EINVAL;
} else {
if (nla[NFTA_SET_ELEM_DATA] != NULL)
return -EINVAL;