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 5BC446136; Mon, 23 Jun 2025 21:37:05 +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=1750714625; cv=none; b=ZNOS2cO4rbZu5ZFbYDqXwG1p4lk47E2CXh4V00CBfhlQvpTSe+4xpoiNfT8lrriXYg5QBq2pqgIc8No4wORuwI54NA5Jv73T/bUPZ3mLYKp+cFLHR0Pi4eIIj2U9yrneihrznR4JAiNyy5KWGO/iooRt5kbwG+p1XSwuKJJFzVE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750714625; c=relaxed/simple; bh=tkW2pAKz755nCcj6NrMrkaAKC1QlvxZtyfkpTy3eqNc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BwffpaEB+jR3De/82x5PrvN+uMf8UohWJtzX84TDwd4ijo7EbLKR/2Y0Zsa3U2unsWtQPcRbw5K7y9ya5W7OBRCx+5b9lMG2NcsEaTjz3LYT37TttIwbDBKtVFsPnjbvVMlkej/GrUBNuU6nRRwaALwA6FLFcaY016siZKO+MCg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RlE2STQW; 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="RlE2STQW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E5137C4CEEA; Mon, 23 Jun 2025 21:37:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750714625; bh=tkW2pAKz755nCcj6NrMrkaAKC1QlvxZtyfkpTy3eqNc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RlE2STQW1d/HrKdTzZ1tTdpAkN3Mrv/Tvvk2JdIpFeio0UBP4Mt6ZUlSvGHJ3MXcX YKjBCBS4Gn/1QXrob+7QRucm61cNKI4+KEQVmZBRYZUIuH2xTmyulP99BrPhaVzUiJ F3qJ55q30FKeSQykcic9qpVTvFmNHjlILfHHyFIY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Tariq Toukan , Jakub Kicinski Subject: [PATCH 5.15 199/411] net/mlx5: Add error handling in mlx5_query_nic_vport_node_guid() Date: Mon, 23 Jun 2025 15:05:43 +0200 Message-ID: <20250623130638.684475340@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130632.993849527@linuxfoundation.org> References: <20250623130632.993849527@linuxfoundation.org> User-Agent: quilt/0.68 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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wentao Liang commit c6bb8a21cdad8c975a3a646b9e5c8df01ad29783 upstream. The function mlx5_query_nic_vport_node_guid() calls the function mlx5_query_nic_vport_context() but does not check its return value. A proper implementation can be found in mlx5_nic_vport_query_local_lb(). Add error handling for mlx5_query_nic_vport_context(). If it fails, free the out buffer via kvfree() and return error code. Fixes: 9efa75254593 ("net/mlx5_core: Introduce access functions to query vport RoCE fields") Cc: stable@vger.kernel.org # v4.5 Signed-off-by: Wentao Liang Reviewed-by: Tariq Toukan Link: https://patch.msgid.link/20250524163425.1695-1-vulab@iscas.ac.cn Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/mellanox/mlx5/core/vport.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c @@ -441,19 +441,22 @@ int mlx5_query_nic_vport_node_guid(struc { u32 *out; int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out); + int err; out = kvzalloc(outlen, GFP_KERNEL); if (!out) return -ENOMEM; - mlx5_query_nic_vport_context(mdev, 0, out); + err = mlx5_query_nic_vport_context(mdev, 0, out); + if (err) + goto out; *node_guid = MLX5_GET64(query_nic_vport_context_out, out, nic_vport_context.node_guid); - +out: kvfree(out); - return 0; + return err; } EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_node_guid);