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=-7.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 E7B1BC433DB for ; Mon, 22 Mar 2021 02:36:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA34E61944 for ; Mon, 22 Mar 2021 02:36:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229874AbhCVCgE (ORCPT ); Sun, 21 Mar 2021 22:36:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229829AbhCVCfz (ORCPT ); Sun, 21 Mar 2021 22:35:55 -0400 Received: from mail-yb1-xb2c.google.com (mail-yb1-xb2c.google.com [IPv6:2607:f8b0:4864:20::b2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 084C5C061574; Sun, 21 Mar 2021 19:35:55 -0700 (PDT) Received: by mail-yb1-xb2c.google.com with SMTP id 8so4977681ybc.13; Sun, 21 Mar 2021 19:35:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=H65xqC/42bEDo/g9LibtM4BW4p82F576E0w0zkL8lbE=; b=QjRuYHaudxq6sEJhoC0naVghi/C5FFmmzliXbS7ycrvCuLnt/ho/UVb7680tshKpqS d8y+5FAR5qBLBPksiTEeEj2+n+PyF5G1JHSHAYfn/zTKBKQ1gmQT0n+YdqWOryeBTdgw aEscEymhMC6Y1dhUsxPgIFUI/u9guz4XH9AdV2tgLqKk1E28qnaQou1TJfTplWC9qEb3 nigmcyXNXdSgBU5a1NEdKZSMk6HNOnZEBKLkxYwYLt2J1wmimjy45kesr/In7xWLysCn a+oIGFv1CsJyfGgTw8Ih1ZlFFlo8uya5bfZTB7j3nCS11pk12nn2sLCh0HjN5Slk9n0I O/Dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=H65xqC/42bEDo/g9LibtM4BW4p82F576E0w0zkL8lbE=; b=KeUi9q2Df0ahfnKYNHvKke5eFRrRQCYtjagqOfv7D22mJGkN6419eyQq9T58RLCZsv +xhY9teMCJzBRnCu7dRYDYFQx0NJQRvlkkxlhJ0LdZc0hO9IH7RnpQOh85QztZWpyu/v wykBWYj62WyGlVGoibpaQsPo3deQRXQTG6n4rYiXGjYfNtJalXzq7XJ27rh2/KBPf6oR NNTfKiGpads1Wbc1pY+ze8fUBUsJJT3wVB4MabTLcO5ESfwuvA7P7cdzflDR998anc4k us/uE2JOjyjEwk76AwSttcODjCXI3k34UQJP7DbcADLLB4VHlvu+1nViOyf6W2MZhSgi fCUg== X-Gm-Message-State: AOAM5328BeUsGfB3NoLwH6ztOazijl37VMdTMe7DatWmEleZL0CKnMLs 5qhK43chmuc/3moEtfxZ7ySqv8oSw45OfOOHL/Y= X-Google-Smtp-Source: ABdhPJzpnWGyC6kV/B25esel4glhfHMWbxfjyAjZ8FXkmdTF54pdIkwKcPdxZFgQfKHvja3095ildw0iB9qIK45vCKk= X-Received: by 2002:a25:1883:: with SMTP id 125mr20994232yby.465.1616380554310; Sun, 21 Mar 2021 19:35:54 -0700 (PDT) MIME-Version: 1.0 References: <00000000000053da9405bd7d2644@google.com> In-Reply-To: From: Ming Lei Date: Mon, 22 Mar 2021 10:35:43 +0800 Message-ID: Subject: Re: [syzbot] KASAN: use-after-free Read in disk_part_iter_next (2) To: Bart Van Assche Cc: syzbot , Jens Axboe , linux-block , Linux Kernel Mailing List , syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 22, 2021 at 7:03 AM Bart Van Assche wrote: > > 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 It should be the same issue which was addressed by aebf5db91705 block: fix use-after-free in disk_part_iter_next but converting to xarray introduced the issue again. -- Ming Lei