Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp332293pxk; Wed, 2 Sep 2020 02:34:08 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzaifjedZgH6GEiUdDLxLDVfdaII0tioBHNpxX96FqOXwi27QKMdLsyUljzYzgrzXqsNJMh X-Received: by 2002:a17:906:e8f:: with SMTP id p15mr5728480ejf.290.1599039248350; Wed, 02 Sep 2020 02:34:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1599039248; cv=none; d=google.com; s=arc-20160816; b=yvkAOsAjNojqnzY2uAALpx4tg2/4EYul5Oo5HHenvpHVv310h8R7Z64tVJvJD9HrOU 3VS5ZponMhHc/oiJCsgtiRix6rfd0lsoa6FG2IE9x6HtovkevmbOkHFalX+8s9thFGna IhYSY31u9dB6ikzych2hjwIKdsl2sjOdUF12XfcaK9vcKnTJ+nOC6D8oT2JKlSbDjM34 2eWqijoKy6EsjrKb87O47MCw3FPZN6jSM6Et0Wz3lLvh8IQDXbHHWJiKKAWY1tgUsNFk 6VPinbtzMpYCCrYYbgnt6G4eR39SIASeMKKw5gPT6Xk195zgzoHql10pHGqf13ZEOnRD Z1lw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=AP4GIrttqKmha4FiSPfcLXZSRJr3ax9khNPBb2oxr68=; b=cu9WzWDf2K/TbD8MNgJ5V/E7/5WK7KgTGnRbkm1VDM7CuEx9Bh6SIZrmqGjXpx+6D0 x09qTa309O7d7bKgwByVIWBOZREpG2PIQaW6fvCBxUChZudrWE/WTTnm73d/WAN+cqnf NRDmQVqErOH50j8duOP6rVJk7/8N5b+m9EtWepFxr71Og628T761y2m3abbjB+CVmW0g 2M9HyCkj4oDhmtBY68FI/0yqZ6e0TzRwc8mEnoiSt5hICKPBihKFSwKrL1MG6yvLm0j+ luVrgOZwvHMUJqGXZ5h5n18YYrlat8ZGOrhv4F6Z/EagWRNCs1JHk/amv5wFQ44MYHKA PsEA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=h2CCmqA0; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id y6si1996032edp.363.2020.09.02.02.33.45; Wed, 02 Sep 2020 02:34:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=h2CCmqA0; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726400AbgIBJcb (ORCPT + 99 others); Wed, 2 Sep 2020 05:32:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51452 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726173AbgIBJc3 (ORCPT ); Wed, 2 Sep 2020 05:32:29 -0400 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6DF3C061244; Wed, 2 Sep 2020 02:32:29 -0700 (PDT) Received: by mail-pj1-x1044.google.com with SMTP id np15so1945805pjb.0; Wed, 02 Sep 2020 02:32:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=AP4GIrttqKmha4FiSPfcLXZSRJr3ax9khNPBb2oxr68=; b=h2CCmqA07O1bHhaypQFI/bi3tYl8u6LMvY0m54AwPEes2ctdO65tDrLeQlhN1j4LmR IOzVn5xWKBkJ7bOrM08d4OMUpNHw0ijDaD0lcPy//8zMz4W77lXziuydkpSbw/P1cEKt v57JlEnnnTBtfCxf6mz+oDE3NXMG6TiBUNqnlZ1k6GRs7zLow9zYisZtGp5GnMVRJqCY vKpsAbSoV9d+WudDmeQ7gURL/L2f6q6+QG8PlfBkC8MMH+RoyIA6pinBHArCJEOMRWan ACCzR+GkH6fpzoruxSCPICxuQsF+71uYlqABO0iuTvNE8/nTRF04PWamASd9zS/c7x2O kHGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=AP4GIrttqKmha4FiSPfcLXZSRJr3ax9khNPBb2oxr68=; b=flI8rouXEgZ9yZ7kJzVr8AerjxUhzplD9XzNh7wk8N8s11xMfLNV9KlsJU38GqFOgL XYpvO/kpPryPWuREWZjPgt663BhU1NxpgAvq5LXz08jWOPgS4B38hGvpqDBP/W7wzEw7 zuIEsLPvo/9Gm3bN1YF3Rz4nKcr9yhb28GLPsv/YgJbQC9HEWe+crev7DZ77xyoVA0L7 OABc5vPFqNmWDM+WRffmGioDCltO7plWVFy8DaJttn+Ns+11Fco++m+3JbeGMFEF1lmB BVdAMLDRiF1fbpQib6jbqs+JiRMPfRiudoRYe1qmSsVN5pkg9aqB8Rvggw7aY872HPGz s2aw== X-Gm-Message-State: AOAM532Lc91DM+Dgh3CEfyJGWs/BBPl/KdZgaa3wpe1sNydEteUbJscP Zn1D79B7KFY+ynXkEc3SmA== X-Received: by 2002:a17:90b:209:: with SMTP id fy9mr1480221pjb.189.1599039148994; Wed, 02 Sep 2020 02:32:28 -0700 (PDT) Received: from localhost.localdomain ([161.117.80.159]) by smtp.gmail.com with ESMTPSA id m25sm4859286pfa.32.2020.09.02.02.32.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Sep 2020 02:32:28 -0700 (PDT) From: Peilin Ye To: hdanton@sina.com, axboe@kernel.dk, hch@lst.de, jack@suse.cz, johannes.thumshirn@wdc.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: use-after-free Read in bdev_del_partition Date: Wed, 2 Sep 2020 05:31:43 -0400 Message-Id: <20200902093143.610218-1-yepeilin.cs@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <000000000000520ffc05ae2f4fee@google.com> References: <000000000000520ffc05ae2f4fee@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I have sent a patch which reverts cddae808aeb7 ("block: pass a hd_struct to delete_partition") to syzbot, and it is now pending for testing: Link: https://groups.google.com/g/syzkaller-bugs/c/fnk0t9aqhDw/m/FO46-S8XAgAJ Thank you, Peilin Ye