Received: by 2002:a05:6358:1087:b0:cb:c9d3:cd90 with SMTP id j7csp6013878rwi; Tue, 18 Oct 2022 07:08:12 -0700 (PDT) X-Google-Smtp-Source: AMsMyM7e1Ku89r8CU0gc/gvyOYjRaXvRRa7N8cAZGxqCPenay578cs8aIwWGtS3nRzPcJ/zmnCNC X-Received: by 2002:a17:903:1245:b0:178:9234:3768 with SMTP id u5-20020a170903124500b0017892343768mr3236101plh.146.1666102092207; Tue, 18 Oct 2022 07:08:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666102092; cv=none; d=google.com; s=arc-20160816; b=IcIfMLWr2r3Vtmx31ECma6MWfDkBa/J141ZqW1oUViMvtk7J7Y5AsqMvducke5zKze evRiH0/zJmbVOEb1b32OpjjxE9AXVqIk0R/ZuyLkvmNwQW+2XEqb0AAYE7cFxnJtX00b dgH+otxALOY8uK3a1B/oDZ4P7biDvA5vxcvv9M5By9Z0MJjHqyffdzHILNhF+95WNgFM UtxUzoysagTFNXk18VXEhcxmIHKdX7L7SA0jRWW3j4uYUykrrWbbZ8+6zTTdLUaTAGNV G5rb5RL0w+E+ItWUiq+sdsvmgojmE6yqp7OveIV6VMVHg4UbkExS4lyDzj2zh3LvPmSz RqGQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=3PQRpGnBPAxhuiddC6IhxSzu3wUeEo12woesvtcquz8=; b=eyq6/BdOelpfCGopVzMuUrYkCLhT5GBgBlEd3tsaAv2iTMvAIogzOoirTDwsW3LTGw f/Bq+4fYMMWk6hGsROocQJcnhRbzweFVuY918tO8ozljznhpsBFxFN1XIq+WuzWYqoZE N+j0vOubKcXEM0Ggwsat98acVEkWE6nYvk98IKePfYDxxqA4XZplPMM+4/Cw26I3ucMQ a04E2irqRGdj8YnQr2M4V6NUkj+52BYY45nRIrqETKR86YvhtVD7JSY/5PIjWK0qTVgm ee99CUnQ/mY/UF2w9YGoljWbNL+d5Z+4vIpr/q91DJtleCimEEvTYsenA+rwes5xbL1B UqUA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id q6-20020a170902dac600b0017f8dfb2308si19474825plx.473.2022.10.18.07.07.49; Tue, 18 Oct 2022 07:08:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230210AbiJRMwx (ORCPT + 99 others); Tue, 18 Oct 2022 08:52:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230215AbiJRMwu (ORCPT ); Tue, 18 Oct 2022 08:52:50 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A07B6C4C32; Tue, 18 Oct 2022 05:52:49 -0700 (PDT) Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MsDKh5h6nzHv1m; Tue, 18 Oct 2022 20:52:40 +0800 (CST) Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 18 Oct 2022 20:52:28 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 18 Oct 2022 20:52:28 +0800 From: Yu Kuai To: , , , , , CC: , , , , Subject: [PATCH RFC 0/2] block: fix uaf in bd_link_disk_holder() Date: Tue, 18 Oct 2022 21:14:30 +0800 Message-ID: <20221018131432.434167-1-yukuai3@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm600009.china.huawei.com (7.193.23.164) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Yu Kuai (2): kobject: add return value for kobject_put() block: protect slave_dir/bd_holder_dir by open_mutex block/genhd.c | 8 ++++++-- block/holder.c | 13 ++++++++++++- block/partitions/core.c | 5 ++++- include/linux/kobject.h | 2 +- lib/kobject.c | 7 +++++-- 5 files changed, 28 insertions(+), 7 deletions(-) -- 2.31.1