Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp3027185pxf; Sun, 21 Mar 2021 16:05:55 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwIdgc9Brje+zzyc0b+OClyAFq9l72otZUTsODJd3sifmaLZDofV7Dq1YCNg7K4kr0VF1Di X-Received: by 2002:a05:6402:b2a:: with SMTP id bo10mr22138383edb.144.1616367955149; Sun, 21 Mar 2021 16:05:55 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1616367955; cv=none; d=google.com; s=arc-20160816; b=OQM0r87Tnp2iufVDTwcvs4UOFM1EQjCgvkpQ1ACggslVsEgBUu4Tn0T8Q3ORcE1uEY t793iZtA0sfEwfLb2VEfvYb6RTmckJiOnYebMWomLqzjjvtAPvp1X+HCH9jV2rPidllS oV+kKt457q306vfDVb7GIdDjISNgM5cXuMLibNELqzBX0wE/mmtMQFTt4GoJ2qffKFjZ nGzUgNuXW59WKKDva1y/FEf7XTGfmkO70J5IsxXQqkT54O4gn48Cn/cFqZ18P5mQkAu3 6Ixbmb30pd3U/2QEzr8WrK/p+et1u4p+1PmW71zgDQqr8poUH4mck53YKL/iUgwNcx2D S9vw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :to:subject; bh=0iamQhREoLz4yBTZ1ac4df91aNQ8GHtf/WoDk/3WJ7o=; b=ENKirrphuEqoyG4eMs5GNE/kvnT3DHE28t6n78YVNdQpR92lS8mUCeF01A6w1zTDAP y+dNM7AZtsdZ/tj3MpiQZ8wNUNv0GQrJ1Vwnd/uiA3yutUytuHMGe5uKBp6w8e8/UPYF efGPWnmWvRNxtAWoRISZmyTQP38YUM8+WbYTJnAMnPF42ZIKEGs3is9yW0YYfQzdV1xy DoRNCU6SXs5kgAxLuMGzipK75d4HrMMKhWpvrkvHfCeVR1XMk041J45+8wFoYRvpt0ON Fd2wI8NkuWZeZH2BmCw6aG5TF70AksCI5WZgVrOUMrF+ribr1ydPNIZuyh4eVMGwWB0J OvdA== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id 28si10742553edw.302.2021.03.21.16.05.32; Sun, 21 Mar 2021 16:05:55 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231355AbhCUV0N (ORCPT + 99 others); Sun, 21 Mar 2021 17:26:13 -0400 Received: from mail-pj1-f54.google.com ([209.85.216.54]:40767 "EHLO mail-pj1-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230167AbhCUV0K (ORCPT ); Sun, 21 Mar 2021 17:26:10 -0400 Received: by mail-pj1-f54.google.com with SMTP id a22-20020a17090aa516b02900c1215e9b33so9356449pjq.5; Sun, 21 Mar 2021 14:26:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=0iamQhREoLz4yBTZ1ac4df91aNQ8GHtf/WoDk/3WJ7o=; b=sxUcnHfbX2QQz4bFtJOqUDSrKvM8STDfC90kgoIZzZOx+ulBr8xVfZqPSY7+9uourS 2NfpEhP4FBOIE9tFRLQEadlkVlCIG9BEyi0gVUumuYCccb0F0lusPhgg+/sKTBBxTS3r /3mG+XPkTOzG0neqsp9T2Q6wUOOup8lL68AL8nC6Mf/uChFgkSG8+IJjRkn3ZyqX1QOL NAlT5IYwSemu+D8IH0AvrCPu6QVbEd2hNd+7B7oFg86Bu+SGmn8JlaqzsBB2PN137/QO NTi7gxGLqG+MdNNe3GfjEX0FFMNiZTypUP7myYEUph+oEzOOaFVCMGYpIc4TZ1cC9GG4 BIRA== X-Gm-Message-State: AOAM531aHdSJ4QcfZCDVZPMcwMUM7/hrhR7LM6+edv9mFcDVaQJK1DQD u48wO8ea+o/3t+Hi1Qw2CV4tMHlbKUE= X-Received: by 2002:a17:90a:a4cb:: with SMTP id l11mr9648060pjw.144.1616361969509; Sun, 21 Mar 2021 14:26:09 -0700 (PDT) Received: from ?IPv6:2601:647:4000:d7:17e0:fd07:e626:199? ([2601:647:4000:d7:17e0:fd07:e626:199]) by smtp.gmail.com with ESMTPSA id l19sm11320534pjt.16.2021.03.21.14.26.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 21 Mar 2021 14:26:08 -0700 (PDT) Subject: Re: [syzbot] KASAN: use-after-free Read in disk_part_iter_next (2) To: syzbot , axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <00000000000053da9405bd7d2644@google.com> From: Bart Van Assche Message-ID: Date: Sun, 21 Mar 2021 14:26:06 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <00000000000053da9405bd7d2644@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/14/21 4:08 AM, syzbot wrote: > syzbot found the following issue on: > > HEAD commit: 280d542f Merge tag 'drm-fixes-2021-03-05' of git://anongit.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=15ade5aed00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=952047a9dbff6a6a > dashboard link: https://syzkaller.appspot.com/bug?extid=8fede7e30c7cee0de139 #syz test: https://github.com/bvanassche/linux a5f35387ebdc