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From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org,
	pabeni@redhat.com, edumazet@google.com
Subject: [PATCH net 12/14] netfilter: nf_tables: drop module reference after updating chain
Date: Tue, 20 Jun 2023 11:35:40 +0200	[thread overview]
Message-ID: <20230620093542.69232-13-pablo@netfilter.org> (raw)
In-Reply-To: <20230620093542.69232-1-pablo@netfilter.org>

Otherwise the module reference counter is leaked.

Fixes b9703ed44ffb ("netfilter: nf_tables: support for adding new devices to an existing netdev chain")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_tables_api.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 0d293eab310b..c1db2f4b2aa4 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2667,6 +2667,8 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 	nft_trans_basechain(trans) = basechain;
 	INIT_LIST_HEAD(&nft_trans_chain_hooks(trans));
 	list_splice(&hook.list, &nft_trans_chain_hooks(trans));
+	if (nla[NFTA_CHAIN_HOOK])
+		module_put(hook.type->owner);
 
 	nft_trans_commit_list_add_tail(ctx->net, trans);
 
-- 
2.30.2


  parent reply	other threads:[~2023-06-20  9:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-20  9:35 [PATCH net 00/14,v2] Netfilter/IPVS fixes for net Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 01/14] ipvs: align inner_mac_header for encapsulation Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 02/14] netfilter: nf_tables: fix chain binding transaction logic Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 03/14] netfilter: nf_tables: add NFT_TRANS_PREPARE_ERROR to deal with bound set/chain Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 04/14] netfilter: nf_tables: drop map element references from preparation phase Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 05/14] netfilter: nft_set_pipapo: .walk does not deal with generations Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 06/14] netfilter: nf_tables: fix underflow in object reference counter Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 07/14] netfilter: nf_tables: disallow element updates of bound anonymous sets Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 08/14] netfilter: nf_tables: reject unbound anonymous set before commit phase Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 09/14] netfilter: nf_tables: reject unbound chain " Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 10/14] netfilter: nf_tables: disallow updates of anonymous sets Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 11/14] netfilter: nf_tables: disallow timeout for " Pablo Neira Ayuso
2023-06-20  9:35 ` Pablo Neira Ayuso [this message]
2023-06-20  9:35 ` [PATCH net 13/14] netfilter: nfnetlink_osf: fix module autoload Pablo Neira Ayuso
2023-06-20  9:35 ` [PATCH net 14/14] netfilter: nf_tables: Fix for deleting base chains with payload Pablo Neira Ayuso
2023-06-20 17:00 ` [PATCH net 00/14,v2] Netfilter/IPVS fixes for net Pablo Neira Ayuso
  -- strict thread matches above, loose matches on Subject: below --
2023-06-21 10:07 [PATCH net,v3 00/14] " Pablo Neira Ayuso
2023-06-21 10:07 ` [PATCH net 12/14] netfilter: nf_tables: drop module reference after updating chain Pablo Neira Ayuso
2023-06-19 14:57 [PATCH net 00/14] Netfilter/IPVS fixes for net Pablo Neira Ayuso
2023-06-19 14:58 ` [PATCH net 12/14] netfilter: nf_tables: drop module reference after updating chain Pablo Neira Ayuso

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