netdev - [PATCH 2/9] nftables: reject NFT_SET_ELEM_INTERVAL

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Date:	Fri, 30 Jan 2015 07:46:27 +0000
From:	Patrick McHardy <kaber@...sh.net>
To:	herbert@...dor.apana.org.au
Cc:	tgraf@...g.ch, davem@...emloft.net, David.Laight@...LAB.COM,
	ying.xue@...driver.com, paulmck@...ux.vnet.ibm.com,
	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org
Subject: [PATCH 2/9] nftables: reject NFT_SET_ELEM_INTERVAL_END flag for non-interval sets

Signed-off-by: Patrick McHardy <kaber@...sh.net>
---
 net/netfilter/nf_tables_api.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 129a8da..92ba4a0 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3112,6 +3112,9 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 		elem.flags = ntohl(nla_get_be32(nla[NFTA_SET_ELEM_FLAGS]));
 		if (elem.flags & ~NFT_SET_ELEM_INTERVAL_END)
 			return -EINVAL;
+		if (!(set->flags & NFT_SET_INTERVAL) &&
+		    elem.flags & NFT_SET_ELEM_INTERVAL_END)
+			return -EINVAL;
 	}
 
 	if (set->flags & NFT_SET_MAP) {
-- 
2.1.0

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