From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 19 Jul 2023 18:19:43 +0000 (+0200)
Subject: netfilter: nf_tables: skip bound chain in netns release path
X-Git-Tag: v5.15.123~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dbe1a82d46edeb3e8f782be8af65ea74d4488cc3;p=thirdparty%2Fkernel%2Fstable.git

netfilter: nf_tables: skip bound chain in netns release path

[ Upstream commit 751d460ccff3137212f47d876221534bf0490996 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index f04a69d74cb23..1cf075a4269a4 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -10192,6 +10192,9 @@ 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);