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[23.128.96.18]) by mx.google.com with ESMTP id o9si3312225ejr.108.2020.10.07.20.42.36; Wed, 07 Oct 2020 20:42:59 -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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727858AbgJHDiL (ORCPT + 99 others); Wed, 7 Oct 2020 23:38:11 -0400 Received: from mail-il1-f206.google.com ([209.85.166.206]:47604 "EHLO mail-il1-f206.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726400AbgJHDiL (ORCPT ); Wed, 7 Oct 2020 23:38:11 -0400 Received: by mail-il1-f206.google.com with SMTP id z14so3120244ilb.14 for ; Wed, 07 Oct 2020 20:38:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=4IhbBH7ECghcPFerwikAMQpqWj6YlBpaCR+/1lLbfIE=; b=SzNXD6w46RmLgPJLlHAeegXZ1zaFztq0IO7Qh7PkI58ODZ6NLUY5XFInWEhk50frry +v6mdlBOCo/OzfOij+8WtNyu8dB/ippxC21Z6G3SkWmDD9n9EjjaBSuIAboAywnWNwPU IobLpuiZduJcNjLyIdzNhw0MAebrwUycPl/aSsYnRX/6IGqlRwqnK08kXw2NVoq8Sxo7 zBZ35BKxvBZB2X90VxdGH2REMMl8OsZKxyXswdg7W0BzczpqYQw0gf12eaqHUoPvj5KF ensFLIs+EqmUnIZBxqh1aLc6vg2pNxXgpp7N/VClL+ibJEFKOBcFOqOlx3drrOCz2rcf tP0w== X-Gm-Message-State: AOAM531gZhv+UVTyPLlANaiSJguvXLg3YNBZXjJGfoZScc4/Qk+cUYuj ufWqRFYsq8lHf+4Bt56n87gU/FQB/wUA2fSKchQzGXhnFgbb MIME-Version: 1.0 X-Received: by 2002:a6b:f30a:: with SMTP id m10mr2888088ioh.164.1602128289047; Wed, 07 Oct 2020 20:38:09 -0700 (PDT) Date: Wed, 07 Oct 2020 20:38:09 -0700 In-Reply-To: <0000000000009323e705ae870d48@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008dab1205b1208fe6@google.com> Subject: Re: KASAN: use-after-free Read in delete_partition From: syzbot To: anant.thazhemadam@gmail.com, axboe@kernel.dk, bgolaszewski@baylibre.com, dan.j.williams@intel.com, dragonjetli@gmail.com, gregkh@linuxfoundation.org, hch@lst.de, hl1998@protonmail.com, jack@suse.cz, jean-philippe@linaro.org, johannes.thumshirn@wdc.com, jroedel@suse.de, linux-block@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org, saravanak@google.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 08fc1ab6d748ab1a690fd483f41e2938984ce353 Author: Christoph Hellwig Date: Tue Sep 1 09:59:41 2020 +0000 block: fix locking in bdev_del_partition bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1259b1e7900000 start commit: f75aef39 Linux 5.9-rc3 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299 dashboard link: https://syzkaller.appspot.com/bug?extid=b8639c8dcb5ec4483d4f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15c43c79900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=173dfa1e900000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: block: fix locking in bdev_del_partition For information about bisection process see: https://goo.gl/tpsmEJ#bisection