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=-5.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 AD9BCC4338F for ; Mon, 2 Aug 2021 14:24:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9341F60EC0 for ; Mon, 2 Aug 2021 14:24:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234563AbhHBOYr (ORCPT ); Mon, 2 Aug 2021 10:24:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234114AbhHBOYo (ORCPT ); Mon, 2 Aug 2021 10:24:44 -0400 Received: from mail-ed1-x52e.google.com (mail-ed1-x52e.google.com [IPv6:2a00:1450:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF56FC04F9C8 for ; Mon, 2 Aug 2021 07:21:23 -0700 (PDT) Received: by mail-ed1-x52e.google.com with SMTP id n2so24667536eda.10 for ; Mon, 02 Aug 2021 07:21:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=B04BQlaidpyijFU7BfQqGywEVs1HZBYHBKlltsjDI90=; b=YVU0Bpk96bXf7jtBLka7c+7Ieyp2hOvD/9a4h+Ew6gDmJfIymH08r5vepGlrNkKGr5 dvLp3gryXO5s2oPaBynZiWY6IoU48sCOYCYFxk23VRnqMx/ffniFp+nvY/gAfZgmcikl hHaupRCoElpbiB4l4yBZ76eFtpW5RK2dk5THxytHa+YPDhWozkraWqQ1X7hygn2LtgQl ljc5jF9zcIdRY0jen+32nDAmbHoiFDz1z0DXYl40D9kq+DwgI9WW+zfuM7EU0ZdmPyx4 rHQr8spoV5ZgHRZvMG3Nite0vkD890j6qUvxcUTYCuKv+zmMJG7UaoFBq3e3FIM6L/Bg PP7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=B04BQlaidpyijFU7BfQqGywEVs1HZBYHBKlltsjDI90=; b=gY9oVKUHdPWas9tEdI1YdElCsKcGxBRqAohV4GU2SpvBTeiehOskc8h5A4qdzkatUk 04BmNtC9RMuWi0ZYattI8qt50K27zw7BzFwZUdA0A/IuGaPXW3xwjwDjfGlrp2pOheuI XYd7HBRsYo885r8Hl2Kck8cGxsC+K7/6qpzL3c+ELUQQRbLs8kA9+8XzcsMyv4YfVSbD 1NxWwXHWVrWDUxASq4yiX5UErGdxt100K3vkytxCO/ZJ7PwnzcCUmQ7Is855Y0gmnH9m jGnnKXv3SARCy2vaH5CY6I7+cHpvpZ464yzTWtGUnacelZmYjc/Zexp7XdJmefoYiAqv yMIw== X-Gm-Message-State: AOAM533xHLdATEf8T65hkyDRlz0M9K3qu9WtPjvTASOtg0MNX8iBV14w s0mf8lokd45W6O2TDWDdTUGBhA== X-Google-Smtp-Source: ABdhPJznZzNC0wMuspVUsQeIYsfM4FxhXltAmdVnA7v7Nh/p4VfUQklWQod0HSywbyqw5f38HwyWJA== X-Received: by 2002:a05:6402:1778:: with SMTP id da24mr19784630edb.385.1627914082435; Mon, 02 Aug 2021 07:21:22 -0700 (PDT) Received: from [192.168.0.13] ([83.216.184.132]) by smtp.gmail.com with ESMTPSA id r27sm6264721edb.66.2021.08.02.07.21.21 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Aug 2021 07:21:21 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Subject: Re: 5.14.0-rc1 KASAN use after free From: Paolo Valente In-Reply-To: Date: Mon, 2 Aug 2021 16:21:20 +0200 Cc: Jens Axboe , Oleksandr Natalenko , LKML , linux-block@vger.kernel.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <8057650.rSI8SBESIY@natalenko.name> <98103103-c517-59d2-a4d6-9b0758cbdfc1@kernel.dk> To: jim.cromie@gmail.com X-Mailer: Apple Mail (2.3445.104.11) Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org > Il giorno 23 lug 2021, alle ore 15:08, jim.cromie@gmail.com ha = scritto: >=20 > On Sun, Jul 18, 2021 at 5:58 PM Jens Axboe wrote: >>=20 >> On 7/18/21 3:08 PM, Oleksandr Natalenko wrote: >>> + Paolo, Jens et al. >>>=20 >>> On =C4=8Dtvrtek 15. =C4=8Dervence 2021 16:32:29 CEST = jim.cromie@gmail.com wrote: >>>> hi all, >>>>=20 >>>> I noticed this report this morning, from 3 days ago, >>>> about 10 minutes after boot. >>>> Its easiest to ignore it, and I dont want to make a fuss, >>>> but it looks useful to someone >>>>=20 >>>>=20 >>>> [ 33.663464] Bluetooth: RFCOMM ver 1.11 >>>> [ 646.343628] >>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ >>>> 646.343649] BUG: KASAN: use-after-free in bfq_get_queue+0x47d/0x900 = [ >>>> 646.343680] Read of size 8 at addr ffff88810d864a00 by task >>>> journal-offline/1639 >>=20 >> There are only a few commits between 5.13 and master in this area, = see >> attached. I'd just start reverting from the top, one by one, and see >> which one is causing the issue. Jim, would that be feasible? >>=20 >=20 > oops, didn't see this earlier. > It hasnt happened since, I can try to recreate mid-next-week >=20 Still nothing? Thanks, Paolo >=20 >> -- >> Jens Axboe