From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB22B47140C; Tue, 21 Jul 2026 19:41:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784662862; cv=none; b=GRWvoePIVExgieforn7KGaSAE17FLcOr9fqzYcZqmNhkBw4UezF+x5zbO2BBFXWbaQIwBRfdF33oZ3s/aq8i4wEwdmZhIJFoFhxL2o2lJllqceYWv5KGjVPJ58Xf+U8BrAV6ZxnCynCBYioajno1JDJjUtkoE37vq+9jIsEZNj4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784662862; c=relaxed/simple; bh=5BoEBCNb8ZTg0rfxtJNKkTcXfxyJLLmQKVALTCu+aOc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HoeqHAqdWZaVKDPFvrmnAN+i/1RiIba7u9wkZfMuQgt05mr8KKnsw+SECgtg/BuGkyfgxPYG7EMK+Cl4TR51l4xn8GxZ8OfIwU6ClCsn/NUIerWy8NlVbz3UMHlIiuFiARy1ZeZk30g9bywonN4TA1z469pRRobybZjcc4siJTQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=zXhG4Teg; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="zXhG4Teg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C4711F000E9; Tue, 21 Jul 2026 19:41:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784662861; bh=yHWVfDmeV6yFZkd3nDAjYQjZeHBr/1BWm4QpTtDZiXQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=zXhG4TegrekEbD2tRXNo6fO6zFT5Hvbkj52zaLPeCDUoSPOGHEB0ifBvvdBDAHzIV ZAH6SaerO49X1yxlIG2AqkT1VENQ6tCfJ5sTrGrbAavPlWMSsGRy2uBPIJoEukog/o ZJZ8NX8b1aXpX8qNgQdHKbyHNWAn9dEc5occpp+k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Florian Westphal , Pablo Neira Ayuso , Sasha Levin Subject: [PATCH 6.12 0598/1276] netfilter: nft_meta_bridge: fix NFT_META_BRI_IIFPVID stack leak Date: Tue, 21 Jul 2026 17:17:21 +0200 Message-ID: <20260721152459.495869897@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152446.065700225@linuxfoundation.org> References: <20260721152446.065700225@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Florian Westphal [ Upstream commit 27dd2997746d54ebc079bb13161cc1bdd401d4a6 ] This needs to test for nonzero retval. Fixes: c54c7c685494 ("netfilter: nft_meta_bridge: add NFT_META_BRI_IIFPVID support") Closes: https://sashiko.dev/#/patchset/20260618061631.21919-1-fw%40strlen.de Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/bridge/netfilter/nft_meta_bridge.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/bridge/netfilter/nft_meta_bridge.c b/net/bridge/netfilter/nft_meta_bridge.c index d12a221366d60c..475d7d1709b9fb 100644 --- a/net/bridge/netfilter/nft_meta_bridge.c +++ b/net/bridge/netfilter/nft_meta_bridge.c @@ -44,7 +44,9 @@ static void nft_meta_bridge_get_eval(const struct nft_expr *expr, if (!br_dev || !br_vlan_enabled(br_dev)) goto err; - br_vlan_get_pvid_rcu(in, &p_pvid); + if (br_vlan_get_pvid_rcu(in, &p_pvid)) + goto err; + nft_reg_store16(dest, p_pvid); return; } -- 2.53.0