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 E981AC433DB for ; Mon, 22 Mar 2021 08:52:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9BC036196E for ; Mon, 22 Mar 2021 08:52:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229728AbhCVIvw (ORCPT ); Mon, 22 Mar 2021 04:51:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229715AbhCVIvp (ORCPT ); Mon, 22 Mar 2021 04:51:45 -0400 Received: from mail-yb1-xb2e.google.com (mail-yb1-xb2e.google.com [IPv6:2607:f8b0:4864:20::b2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A370C061574; Mon, 22 Mar 2021 01:51:45 -0700 (PDT) Received: by mail-yb1-xb2e.google.com with SMTP id o66so5729422ybg.10; Mon, 22 Mar 2021 01:51:45 -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=zZUxxolYENOQUENZ+lfutKQF2Z8w97jGbJjNKrdcc9g=; b=Z7CGvbRXcrH2XSgFW9+mh2v0GRrKstIS8N0qY5Rphs3xkClbYWn68vvaomgnjmRkN2 hASXnD6t7XWGn4QHKx43+lL5PUBNR4IinpLdcW6JB2FuoeCp0ectnCHu77GBrKFE5txL EIlRkWu6KoGPMR7LHBV7hWtRJ+hCMBxlMN/GHO1b3JVZPh+mWgs4BVhGwjP4DNUfueuq 3vC3aH6hCcsRxBSJg5u9e2OH059B1K4y9jYFTGeFPSSZkSdxXTwVOYmRlWjICwNa4hfX 5dUN4oBuJc5zQ8d0a1GgSsIeQ/GC/V0BgylyklV9ha8nuN9MStBoqM9sLxIOh0CqqiF1 Sh4Q== 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=zZUxxolYENOQUENZ+lfutKQF2Z8w97jGbJjNKrdcc9g=; b=DPDWhMwwSNWwYRtnRfaeC8uzaXivrESAmy7Yw3F2IAus+hDjO11T52TwGaETs7vZnw 6SllTN1kVkHf8Cxr2m5cr2MXxZlxNJXIkIvWcfIYHt/eK/HQ0nBXYawwrzZlB5dg5HvJ iK6oRbdFBZyAYcnq3q8gH0ENnbre0C3gTibj0P6XqUYDQzL0HBuP9BUSzkrQM/4wA9HG bqR486Bxxdyyp7WZD8Sy9lY+jfqA4zAK6bFna16u/QZx3J0001o46QP37AsuRYsT5X4M sXU4+pIiTymTrRXnab+YiTe+ABbeO5TZM9n/WpzdRT2ga17kztzIcV3vTN1a7o4SVTsE rB7A== X-Gm-Message-State: AOAM533x+3bqRSCNo9R+ZPy14tVVVlOC9ZcfEw/y1scjDb0/GRRRcALE WaBef2c7/jmKPkFViW8KUx/SYgJ1KlHvJXsWWC8= X-Google-Smtp-Source: ABdhPJzeZH+/7T21996w0VxHXZr5xna1/hURv2Axs+T48Vx91u9Ni1YOP3GghPknR0e9eDKcRVxrSjoWb8Bz7InFJlA= X-Received: by 2002:a5b:3cc:: with SMTP id t12mr23113193ybp.144.1616403105033; Mon, 22 Mar 2021 01:51:45 -0700 (PDT) MIME-Version: 1.0 References: <00000000000053da9405bd7d2644@google.com> In-Reply-To: <00000000000053da9405bd7d2644@google.com> From: Ming Lei Date: Mon, 22 Mar 2021 16:51:33 +0800 Message-ID: Subject: Re: [syzbot] KASAN: use-after-free Read in disk_part_iter_next (2) To: syzbot Cc: 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-block@vger.kernel.org On Sun, Mar 14, 2021 at 7:10 PM syzbot wrote: > > Hello, > > 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 > > Unfortunately, I don't have any reproducer for this issue yet. > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+8fede7e30c7cee0de139@syzkaller.appspotmail.com #syz test: https://github.com/ming1/linux.git v5.12-block-test