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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DE69CCA468 for ; Wed, 1 Jun 2022 13:51:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353358AbiFANvb (ORCPT ); Wed, 1 Jun 2022 09:51:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352423AbiFANv3 (ORCPT ); Wed, 1 Jun 2022 09:51:29 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 249E26EC76 for ; Wed, 1 Jun 2022 06:51:28 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id r9-20020a1c4409000000b00397345f2c6fso3073167wma.4 for ; Wed, 01 Jun 2022 06:51:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=vrp+XKlrC28VPKzB31gc6GZw4V9Xd+q7p21Hsrobnd4=; b=FpFvX4hFfUH6VWvkQhTYbU3f+XhlhYR/2tnLxnA8032oH+YHZQHsQaxTqDV71rZPmh nMYVbgoQVI2dKS5A5zkqszLi6M+/tvBTKZkZpIdyuqbJzNBe8SglccWtsFvmGhZBluXx 7bdEtJreXPPhVcDi6U+HdF3/TfwJJxqwyDWrBXUuwB6YahptuRrMe0GfYlw1MEdzrsK6 B50k+ke1HaJJyLPD3DigT7OtPaMrkU20wu7kBmvk2Uk36jDInXr78Tb6nCGUAPema74n 5poFlCdWrMQ3fvXDB8NDTC5ANX+5PoGBDVdJHxpwW1OUvqTN6dlmHZ6pM8bXu3AnIFKA 0W+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=vrp+XKlrC28VPKzB31gc6GZw4V9Xd+q7p21Hsrobnd4=; b=zJZkycX1e3eixpw+mO0gW+6XlSwDgmrLDJUWWXQ2UR/RhkaEjknxucGZx6Lsbp1cx7 mPvnyfVmrMkc3apNUkNsR17ZwiLfqz2foZQDy7/zijM7JYz+R48qSeHS4McXgo6hFevb npr9rlzhkUdyziXviqEkGdvEg9mNj/Uh9laZNEgmRBMWIGnte8SpmEOCvE/XhLTmqM4r uEiBixyYDMqIbfWxeS153gZrM2ic1Hkb6VjDFh1lXgWxCcujy4IZhDU2B/JQLYESyqEJ wYLWpYEP+stvdxhQhUaj8ThYomhx6OnRvdX3L/6iKKJ9dL51UAg1lcCcym4227+fs/LT c1iA== X-Gm-Message-State: AOAM533gxMDLuK93QREuTeq8YBMMHfKRVKSN62Xx1kgBtuROCto/De3Y rZS7ZgsEdJyj5Q+mM6MRC/mkQQ== X-Google-Smtp-Source: ABdhPJzVyw5pIrFFSo6BlJP0awDsWCHEctDO99hX8Sjr5Plkug/ABPLsyvMQsahyZa100CqafVezzA== X-Received: by 2002:a7b:c5cb:0:b0:397:47ae:188f with SMTP id n11-20020a7bc5cb000000b0039747ae188fmr28614746wmk.137.1654091486522; Wed, 01 Jun 2022 06:51:26 -0700 (PDT) Received: from nogikh.google.com (216.131.76.34.bc.googleusercontent.com. [34.76.131.216]) by smtp.gmail.com with ESMTPSA id h12-20020a05600c2cac00b0039749256d74sm5754412wmc.2.2022.06.01.06.51.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Jun 2022 06:51:25 -0700 (PDT) Date: Wed, 1 Jun 2022 13:51:20 +0000 From: Aleksandr Nogikh To: Linus Torvalds Cc: syzbot , applications@thinkbigglobal.in, David Miller , gustavo@padovan.org, Johan Hedberg , linux-bluetooth , Linux Kbuild mailing list , Linux Kernel Mailing List , Marcel Holtmann , Ingo Molnar , Michal Marek , Netdev , Peter Zijlstra , syzkaller-bugs , Will Deacon , Dmitry Vyukov , Aleksandr Nogikh Subject: Re: [syzbot] KASAN: use-after-free Read in corrupted (4) Message-ID: References: <000000000000c1925305ac997812@google.com> <000000000000b6b4eb05dfa1b325@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.1.4 (2021-12-11) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi Linus, Thank you for looking at the syzbot's email! The bisection info was indeed included in this case by mistake. We have fixed this, now the bot should not mention bisections that point to release commits and thefefore won't be pinging you as the commit author. Best Regards, Aleksandr On Sun, May 22, 2022 at 08:56PM -0700, Linus Torvalds wrote: > On Sun, May 22, 2022 at 4:01 PM syzbot > wrote: > > > > The issue was bisected to: > > > > commit c470abd4fde40ea6a0846a2beab642a578c0b8cd > > Author: Linus Torvalds > > Date: Sun Feb 19 22:34:00 2017 +0000 > > > > Linux 4.10 > > Heh. That looks very unlikely, so the bisection seems to sadly have > failed at some point. > > At least one of the KASAN reports (that "final oops") does look very > much like the bug fixed by commit 1bff51ea59a9 ("Bluetooth: fix > use-after-free error in lock_sock_nested()"), so this may already be > fixed, but who knows... > > But that "update Makefile to 4.10" is not the cause... > > Linus