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netfilter: nft_ct: report error if mark and dir specified simultaneously 

NFT_CT_MARK is unrelated to direction, so if NFTA_CT_DIRECTION attr is
specified, report EINVAL to the userspace. This validation check was
already done at nft_ct_get_init, but we missed it in nft_ct_set_init.

Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Liping Zhang 2016-09-22 22:28:52 +08:00 committed by Pablo Neira Ayuso
parent d767ff2c84
commit 7bfdde7045
1 changed files with 2 additions and 0 deletions
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2
net/netfilter/nft_ct.c
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@ -364,6 +364,8 @@ static int nft_ct_set_init(const struct nft_ctx *ctx,
switch (priv->key) {
#ifdef CONFIG_NF_CONNTRACK_MARK
case NFT_CT_MARK:
if (tb[NFTA_CT_DIRECTION])
return -EINVAL;
len = FIELD_SIZEOF(struct nf_conn, mark);
break;
#endif