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Message-Id: <1406911239-6250-4-git-send-email-pablo@netfilter.org>
Date: Fri, 1 Aug 2014 18:40:39 +0200
From: Pablo Neira Ayuso <pablo@...filter.org>
To: netfilter-devel@...r.kernel.org
Cc: davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 3/3] netfilter: nf_tables: Avoid duplicate call to nft_data_uninit() for same key
From: Thomas Graf <tgraf@...g.ch>
nft_del_setelem() currently calls nft_data_uninit() twice on the same
key. Once to release the key which is guaranteed to be NFT_DATA_VALUE
and a second time in the error path to which it falls through.
The second call has been harmless so far though because the type
passed is always NFT_DATA_VALUE which is currently a no-op.
Signed-off-by: Thomas Graf <tgraf@...g.ch>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
net/netfilter/nf_tables_api.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 8746ff9..b35ba83 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3218,6 +3218,7 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set,
if (set->flags & NFT_SET_MAP)
nft_data_uninit(&elem.data, set->dtype);
+ return 0;
err2:
nft_data_uninit(&elem.key, desc.type);
err1:
--
1.7.10.4
--
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