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From: Florian Westphal <fw@strlen.de>
To: <netdev@vger.kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	<netfilter-devel@vger.kernel.org>,
	Pablo Neira Ayuso <pablo@netfilter.org>
Subject: [PATCH net 4/5] netfilter: nf_tables: skip bound chain in netns release path
Date: Thu, 20 Jul 2023 18:51:36 +0200	[thread overview]
Message-ID: <20230720165143.30208-5-fw@strlen.de> (raw)
In-Reply-To: <20230720165143.30208-1-fw@strlen.de>

From: Pablo Neira Ayuso <pablo@netfilter.org>

Skip bound chain from netns release path, the rule that owns this chain
releases these objects.

Fixes: d0e2c7de92c7 ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
 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 41e7d21d4429..40bff6e2ea5d 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -10802,6 +10802,9 @@ static void __nft_release_table(struct net *net, struct nft_table *table)
 	ctx.family = table->family;
 	ctx.table = table;
 	list_for_each_entry(chain, &table->chains, list) {
+		if (nft_chain_is_bound(chain))
+			continue;
+
 		ctx.chain = chain;
 		list_for_each_entry_safe(rule, nr, &chain->rules, list) {
 			list_del(&rule->list);
-- 
2.41.0


  parent reply	other threads:[~2023-07-20 16:52 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-20 16:51 [PATCH net 0/5] Netfilter fixes for net: Florian Westphal
2023-07-20 16:51 ` [PATCH net 1/5] netfilter: nf_tables: fix spurious set element insertion failure Florian Westphal
2023-07-20 20:00   ` patchwork-bot+netdevbpf
2023-07-20 16:51 ` [PATCH net 2/5] netfilter: nf_tables: can't schedule in nft_chain_validate Florian Westphal
2023-07-20 16:51 ` [PATCH net 3/5] netfilter: nft_set_pipapo: fix improper element removal Florian Westphal
2023-07-20 16:51 ` Florian Westphal [this message]
2023-07-20 16:51 ` [PATCH net 5/5] netfilter: nf_tables: skip bound chain on rule flush Florian Westphal

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