netdev - [PATCH net 4/4] netfilter: nf_tables: revert do not remove elements if set backend implements .abort

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Message-ID: <20231018125605.27299-5-fw@strlen.de>
Date: Wed, 18 Oct 2023 14:56:00 +0200
From: Florian Westphal <fw@...len.de>
To: <netdev@...r.kernel.org>
Cc: Paolo Abeni <pabeni@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	<netfilter-devel@...r.kernel.org>,
	Pablo Neira Ayuso <pablo@...filter.org>
Subject: [PATCH net 4/4] netfilter: nf_tables: revert do not remove elements if set backend implements .abort

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

nf_tables_abort_release() path calls nft_set_elem_destroy() for
NFT_MSG_NEWSETELEM which releases the element, however, a reference to
the element still remains in the working copy.

Fixes: ebd032fa8818 ("netfilter: nf_tables: do not remove elements if set backend implements .abort")
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
Signed-off-by: Florian Westphal <fw@...len.de>
---
 net/netfilter/nf_tables_api.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 7b77ff5985f6..29c651804cb2 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -10345,10 +10345,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 				break;
 			}
 			te = (struct nft_trans_elem *)trans->data;
-			if (!te->set->ops->abort ||
-			    nft_setelem_is_catchall(te->set, &te->elem))
-				nft_setelem_remove(net, te->set, &te->elem);
-
+			nft_setelem_remove(net, te->set, &te->elem);
 			if (!nft_setelem_is_catchall(te->set, &te->elem))
 				atomic_dec(&te->set->nelems);
 
-- 
2.41.0