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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 3C121C433DB for ; Fri, 22 Jan 2021 14:19:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E40EC23BCC for ; Fri, 22 Jan 2021 14:19:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728474AbhAVOSe (ORCPT ); Fri, 22 Jan 2021 09:18:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:34362 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728249AbhAVOKT (ORCPT ); Fri, 22 Jan 2021 09:10:19 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 50A3C23A5F; Fri, 22 Jan 2021 14:09:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1611324549; bh=Au9xa8xvz2mVntZXPNrBEMmN2TqLpr0/JMNfuFkoCOw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ppaPsSwRcg1gxk/LRYaZ2yWTjexVj1wJncls0O6dpDpkKkmJaWgth+ydbkTdjC7js dXHcNwcOeQ7aBRiL8ce1x1FEszuz6QUwKspTw3yZepECTSXtjMmwCnAFMkDXYIQuuK rg+/C/Zp1AmuQMUIB4xK/EorVkJPNt9A9UaazjsU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dinghao Liu , Leon Romanovsky , Jason Gunthorpe Subject: [PATCH 4.4 16/31] RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp Date: Fri, 22 Jan 2021 15:08:30 +0100 Message-Id: <20210122135732.521195496@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210122135731.873346566@linuxfoundation.org> References: <20210122135731.873346566@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dinghao Liu commit a306aba9c8d869b1fdfc8ad9237f1ed718ea55e6 upstream. If usnic_ib_qp_grp_create() fails at the first call, dev_list will not be freed on error, which leads to memleak. Fixes: e3cf00d0a87f ("IB/usnic: Add Cisco VIC low-level hardware driver") Link: https://lore.kernel.org/r/20201226074248.2893-1-dinghao.liu@zju.edu.cn Signed-off-by: Dinghao Liu Reviewed-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c @@ -180,6 +180,7 @@ find_free_vf_and_create_qp_grp(struct us } usnic_uiom_free_dev_list(dev_list); + dev_list = NULL; } if (!found) { @@ -207,6 +208,8 @@ find_free_vf_and_create_qp_grp(struct us spin_unlock(&vf->lock); if (IS_ERR_OR_NULL(qp_grp)) { usnic_err("Failed to allocate qp_grp\n"); + if (usnic_ib_share_vf) + usnic_uiom_free_dev_list(dev_list); return ERR_PTR(qp_grp ? PTR_ERR(qp_grp) : -ENOMEM); }