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netfilter: nft_compat: fix hook validation for non-base chains

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Set hook_mask to zero for non-base chains, otherwise people may hit
bogus errors from the xt_check_target() and xt_check_match() when
validating the uninitialized hook_mask.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2014-10-14 12:43:50 +02:00
parent 7210e4e38f
commit 493618a92c
1 changed files with 4 additions and 0 deletions
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4
net/netfilter/nft_compat.c
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@ -95,6 +95,8 @@ nft_target_set_tgchk_param(struct xt_tgchk_param *par,
const struct nf_hook_ops *ops = &basechain->ops[0];
par->hook_mask = 1 << ops->hooknum;
} else {
par->hook_mask = 0;
}
par->family = ctx->afi->family;
}
@ -293,6 +295,8 @@ nft_match_set_mtchk_param(struct xt_mtchk_param *par, const struct nft_ctx *ctx,
const struct nf_hook_ops *ops = &basechain->ops[0];
par->hook_mask = 1 << ops->hooknum;
} else {
par->hook_mask = 0;
}
par->family = ctx->afi->family;
}