linux-kernel - [PATCH 5.4 178/183] netfilter: nf_tables: do not compare internal table flags on updates

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Message-ID: <20240324234638.1355609-179-sashal@kernel.org>
Date: Sun, 24 Mar 2024 19:46:31 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Pablo Neira Ayuso <pablo@...filter.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 178/183] netfilter: nf_tables: do not compare internal table flags on updates

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

[ Upstream commit 4a0e7f2decbf9bd72461226f1f5f7dcc4b08f139 ]

Restore skipping transaction if table update does not modify flags.

Fixes: 179d9ba5559a ("netfilter: nf_tables: fix table flag updates")
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 c5dbb950822fd..2d372d5fcbfaa 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -916,7 +916,7 @@ static int nf_tables_updtable(struct nft_ctx *ctx)
 	if (flags & ~NFT_TABLE_F_DORMANT)
 		return -EINVAL;
 
-	if (flags == ctx->table->flags)
+	if (flags == (ctx->table->flags & NFT_TABLE_F_MASK))
 		return 0;
 
 	/* No dormant off/on/off/on games in single transaction */
-- 
2.43.0