From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 873884D8CE; Tue, 30 Sep 2025 14:52:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759243971; cv=none; b=qWxcmitefhaFJsbABG+wdOXz3Lzofz+4N+Kp+x6OilG3oJBCUZkJEJ6eOI3GUQCPCJN1VVpOPzVsgc9TcRiDkyE7sFQx2kItf5SHlBnHKz25evL5qShwEFu+oM8wqk6vEWcZ59rkRYe6l8KrIieyBYQOvBBBjiY/y2w05FomfL8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759243971; c=relaxed/simple; bh=SqSDhe/IncZyMKu/hO9YC+w6givzcOXtpylNCmGyXK0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZKY4lSqqC4Pby/KZaD2r5Uvl5Q6utE3Sp6r3H/uo28Aty6ncwFoVTSvrlFfDNf+GNyLATVr9R1dTTPxtEcy3gqVNTwhSu1l6KmiYw7jQPPsmx50rxiFqVgu/75GqZqnZd+351x8iHmAB9k9yA90bHVrLox8n8oaeNzSzk/LPCDI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kTMFcdtb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kTMFcdtb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E887EC4CEF0; Tue, 30 Sep 2025 14:52:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1759243971; bh=SqSDhe/IncZyMKu/hO9YC+w6givzcOXtpylNCmGyXK0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kTMFcdtbfbODHak+KMjXJ8jUwXfMPp1rwLMLsfxM5zahR31RFSAML3jCzbhwdQ/+J d6WV1GfXdm/zY0igVx5Bq7kRi9cwAmX9A01UCcX0GZbYf9B12k9zfQ6uE0f4YYDd7X oopHMFSlhx4XIwBhJ2PDm2HQJ7nusxdOIu3ZUc8Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lukasz Czapnik , Aleksandr Loktionov , Przemek Kitszel , Simon Horman , Rafal Romanowski , Tony Nguyen Subject: [PATCH 5.4 72/81] i40e: add max boundary check for VF filters Date: Tue, 30 Sep 2025 16:47:14 +0200 Message-ID: <20250930143822.718441499@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250930143819.654157320@linuxfoundation.org> References: <20250930143819.654157320@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 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lukasz Czapnik commit cb79fa7118c150c3c76a327894bb2eb878c02619 upstream. There is no check for max filters that VF can request. Add it. Fixes: e284fc280473 ("i40e: Add and delete cloud filter") Cc: stable@vger.kernel.org Signed-off-by: Lukasz Czapnik Reviewed-by: Aleksandr Loktionov Signed-off-by: Przemek Kitszel Reviewed-by: Simon Horman Tested-by: Rafal Romanowski Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -3665,6 +3665,8 @@ err: aq_ret); } +#define I40E_MAX_VF_CLOUD_FILTER 0xFF00 + /** * i40e_vc_add_cloud_filter * @vf: pointer to the VF info @@ -3704,6 +3706,14 @@ static int i40e_vc_add_cloud_filter(stru goto err_out; } + if (vf->num_cloud_filters >= I40E_MAX_VF_CLOUD_FILTER) { + dev_warn(&pf->pdev->dev, + "VF %d: Max number of filters reached, can't apply cloud filter\n", + vf->vf_id); + aq_ret = -ENOSPC; + goto err_out; + } + cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); if (!cfilter) return -ENOMEM;