netdev - [PATCH net 2/2] netfilter: nft_limit: Clone packet limits' cost value

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Message-Id: <20220526205411.315136-3-pablo@netfilter.org>
Date:   Thu, 26 May 2022 22:54:11 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org,
        pabeni@...hat.com
Subject: [PATCH net 2/2] netfilter: nft_limit: Clone packet limits' cost value

From: Phil Sutter <phil@....cc>

When cloning a packet-based limit expression, copy the cost value as
well. Otherwise the new limit is not functional anymore.

Fixes: 3b9e2ea6c11bf ("netfilter: nft_limit: move stateful fields out of expression data")
Signed-off-by: Phil Sutter <phil@....cc>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nft_limit.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/netfilter/nft_limit.c b/net/netfilter/nft_limit.c
index 04ea8b9bf202..981addb2d051 100644
--- a/net/netfilter/nft_limit.c
+++ b/net/netfilter/nft_limit.c
@@ -213,6 +213,8 @@ static int nft_limit_pkts_clone(struct nft_expr *dst, const struct nft_expr *src
 	struct nft_limit_priv_pkts *priv_dst = nft_expr_priv(dst);
 	struct nft_limit_priv_pkts *priv_src = nft_expr_priv(src);
 
+	priv_dst->cost = priv_src->cost;
+
 	return nft_limit_clone(&priv_dst->limit, &priv_src->limit);
 }
 
-- 
2.30.2