From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E871C3A5A1 for ; Thu, 22 Aug 2019 17:30:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F0A50233FC for ; Thu, 22 Aug 2019 17:30:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566495018; bh=rEuce7MorVCTzG9uSs4zdJ9r9FIRLf/x4SAQiswLbYM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xAVKNviVVfS/l6dPPnBCIbtb2EZBntBwQlmb7ppLNrA6DdKh3ET2JhSbxFRrST/Gf d/YdgpCQL/fCMjzDAOIBDz4Vxw25Au2/qpUO6TffqU6a0UD0vbzRdM8BFDZ0d+faJA aEhVCunQ3lCg5gJhHREWhQFbNUfZfsmbV2FwOAf0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392127AbfHVRaR (ORCPT ); Thu, 22 Aug 2019 13:30:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:51394 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404655AbfHVR0M (ORCPT ); Thu, 22 Aug 2019 13:26:12 -0400 Received: from localhost (wsip-184-188-36-2.sd.sd.cox.net [184.188.36.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AF7A3206DD; Thu, 22 Aug 2019 17:26:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566494771; bh=rEuce7MorVCTzG9uSs4zdJ9r9FIRLf/x4SAQiswLbYM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G3s178QyqOGvgw4w4sCzek+5kd2Papd+iCH3c+9/9C00VDCUHR9oisgA7onbZzQFx aavL8ML6RG/5+AOh6pF5U0L373lOdKBfCShuFL4EMXUv/4T1LENZKheGwOqFcF+M8K fuEutsQDuUwbaf9gGH2jWhu1lod2NjRPlUk4OYZ4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wenwen Wang , Tariq Toukan , Jakub Kicinski Subject: [PATCH 4.19 76/85] net/mlx4_en: fix a memory leak bug Date: Thu, 22 Aug 2019 10:19:49 -0700 Message-Id: <20190822171734.411724415@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190822171731.012687054@linuxfoundation.org> References: <20190822171731.012687054@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wenwen Wang [ Upstream commit 48ec7014c56e5eb2fbf6f479896143622d834f3b ] In mlx4_en_config_rss_steer(), 'rss_map->indir_qp' is allocated through kzalloc(). After that, mlx4_qp_alloc() is invoked to configure RSS indirection. However, if mlx4_qp_alloc() fails, the allocated 'rss_map->indir_qp' is not deallocated, leading to a memory leak bug. To fix the above issue, add the 'qp_alloc_err' label to free 'rss_map->indir_qp'. Fixes: 4931c6ef04b4 ("net/mlx4_en: Optimized single ring steering") Signed-off-by: Wenwen Wang Reviewed-by: Tariq Toukan Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -1190,7 +1190,7 @@ int mlx4_en_config_rss_steer(struct mlx4 err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, rss_map->indir_qp); if (err) { en_err(priv, "Failed to allocate RSS indirection QP\n"); - goto rss_err; + goto qp_alloc_err; } rss_map->indir_qp->event = mlx4_en_sqp_event; @@ -1244,6 +1244,7 @@ indir_err: MLX4_QP_STATE_RST, NULL, 0, 0, rss_map->indir_qp); mlx4_qp_remove(mdev->dev, rss_map->indir_qp); mlx4_qp_free(mdev->dev, rss_map->indir_qp); +qp_alloc_err: kfree(rss_map->indir_qp); rss_map->indir_qp = NULL; rss_err: