linux-kernel - [PATCH 5.18 181/339] netfilter: nf_tables: use kfree_rcu(ptr, rcu) to release hooks in clean

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Message-Id: <20220613094932.169162107@linuxfoundation.org>
Date:   Mon, 13 Jun 2022 12:10:06 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Pablo Neira Ayuso <pablo@...filter.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 181/339] netfilter: nf_tables: use kfree_rcu(ptr, rcu) to release hooks in clean_net path

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

[ Upstream commit ab5e5c062f67c5ae8cd07f0632ffa62dc0e7d169 ]

Use kfree_rcu(ptr, rcu) variant instead as described by ae089831ff28
("netfilter: nf_tables: prefer kfree_rcu(ptr, rcu) variant").

Fixes: f9a43007d3f7 ("netfilter: nf_tables: double hook unregistration in netns path")
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/netfilter/nf_tables_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index b6a920813005..a0981e7cb211 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -7326,7 +7326,7 @@ static void __nft_unregister_flowtable_net_hooks(struct net *net,
 		nf_unregister_net_hook(net, &hook->ops);
 		if (release_netdev) {
 			list_del(&hook->list);
-			kfree_rcu(hook);
+			kfree_rcu(hook, rcu);
 		}
 	}
 }
-- 
2.35.1