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=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL 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 CAFDBC43461 for ; Fri, 14 May 2021 07:50:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 930F861457 for ; Fri, 14 May 2021 07:50:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233294AbhENHwG (ORCPT ); Fri, 14 May 2021 03:52:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233265AbhENHwC (ORCPT ); Fri, 14 May 2021 03:52:02 -0400 Received: from mail-qt1-x829.google.com (mail-qt1-x829.google.com [IPv6:2607:f8b0:4864:20::829]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA039C061756 for ; Fri, 14 May 2021 00:50:51 -0700 (PDT) Received: by mail-qt1-x829.google.com with SMTP id t7so21702599qtn.3 for ; Fri, 14 May 2021 00:50:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=kOfBJat+mqyQtxfMSdBFqXn3AB6r0NiX2/D+7z9FVyo=; b=oBvVTruIns4DBa2mnrwIcWIU4SJx73VtUiBhpiZiiQ4AgdcUXLULLIJjdLp156rle+ hbbOl8MNj27y0QoSF1Sxomo69kVzLSL/Sn8XQDn9ubtKa/5+AML8FGLfW/8V90tU7YZh HmvAJ+pCRWihBeTP8mSMCXhjLvgR/v/c9nMjDfspMVYG6TkRoM8EBz0hFJ14/zsHyqRv Huyyff6Uq5YpEHTn+MOVWTugf14j65wzj96QL+NMlGTb3vufHVjTADePtQW55oPqg7H8 /YaTx+TDc++XoUxZOxnXzxjw2VNHP5VV0DZnLKPXpsQHPPdEsbTWrO8Fe9dl71d8KmL/ yOxQ== 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=kOfBJat+mqyQtxfMSdBFqXn3AB6r0NiX2/D+7z9FVyo=; b=sj9B8StSlByUsbS+fuTnF491ZyknNmAIyUYk04JvdNSUDeunk0RbYMu/prWOiZLJOw yI0dtLUJxsDU2qss6w0YMdhjDvr+IKHX7+OzTd72Zh4vvD/X62oRFH8pabLtVxFJbF2x a4aTTn5qpC2+JQEYs119rnF85sthoc35LVAAFXpQFrRhlNq/BOpWbQsUwDfBuOmT85B3 S4lT3A39AbSmkMsr5zWO8qOiC1AEbEGkn1Rw2Vfz2vl9MdD7H25lJNRRTVLY1xOQ24Rc 5qsRZFc0xic2EFIJt5QAHIDEG4D239qFrOW2E5MOLxpPXXcJsaNqa3kqvi4VZRIQLSrw Q7GQ== X-Gm-Message-State: AOAM531K2uQMMUytzcILVAl5b1sCnJDV8eJjG5/74PjMIoksXYl2fz+A 2OKXG78wIUurVDzNtJ8lNgjG7dDaODgXEUIe8+F7aA== X-Google-Smtp-Source: ABdhPJwO2h2BkNL/icMM2Oo2w/4OPTUpvyJcOesVWoDMUs+CyOXTk6AsniBs441KSzBS+qWlvmbJDR9FhZma/QKevLg= X-Received: by 2002:ac8:7c8a:: with SMTP id y10mr3974414qtv.337.1620978650818; Fri, 14 May 2021 00:50:50 -0700 (PDT) MIME-Version: 1.0 References: <000000000000aaa4a905ac646223@google.com> <000000000000fd05a005c2389844@google.com> In-Reply-To: <000000000000fd05a005c2389844@google.com> From: Dmitry Vyukov Date: Fri, 14 May 2021 09:50:39 +0200 Message-ID: Subject: Re: [syzbot] KASAN: use-after-free Read in __queue_work (3) To: syzbot Cc: Markus Elfring , Anant Thazhemadam , David Miller , Greg Kroah-Hartman , Hillf Danton , Johan Hedberg , Jakub Kicinski , linma@zju.edu.cn, linux-bluetooth , LKML , luiz.dentz@gmail.com, Marcel Holtmann , netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 13, 2021 at 6:27 PM syzbot wrote: > > syzbot suspects this issue was fixed by commit: > > commit e2cb6b891ad2b8caa9131e3be70f45243df82a80 > Author: Lin Ma > Date: Mon Apr 12 11:17:57 2021 +0000 > > bluetooth: eliminate the potential race condition when removing the HCI controller > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=127b3593d00000 > start commit: c0842fbc random32: move the pseudo-random 32-bit definitio.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=cf567e8c7428377e > dashboard link: https://syzkaller.appspot.com/bug?extid=77e5e02c6c81136cdaff > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=140e36a4900000 > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: bluetooth: eliminate the potential race condition when removing the HCI controller > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection Looks reasonable based on the commit and bisection log. Unfortunately I cannot easily send this as my email client will wrap the commit title line (longer than 80 chars)...