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[13/23] netfilter: nf_tables: fix check for table overflow

Message ID 1389314142-17969-14-git-send-email-pablo@netfilter.org
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Pablo Neira Ayuso Jan. 10, 2014, 12:35 a.m. UTC 
From: Patrick McHardy <kaber@trash.net>

The table use counter is only increased for new chains, so move the check
to the correct position.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_tables_api.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index d275d38..290472c 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -834,9 +834,6 @@  static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-	if (table->use == UINT_MAX)
-		return -EOVERFLOW;
-
 	chain = NULL;
 	name = nla[NFTA_CHAIN_NAME];
 
@@ -899,6 +896,9 @@  static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 		goto notify;
 	}
 
+	if (table->use == UINT_MAX)
+		return -EOVERFLOW;
+
 	if (nla[NFTA_CHAIN_HOOK]) {
 		struct nf_hook_ops *ops;
 		nf_hookfn *hookfn;