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=-4.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 9030FC433E4 for ; Sat, 15 Aug 2020 22:30:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6DA2320658 for ; Sat, 15 Aug 2020 22:30:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729399AbgHOWau (ORCPT ); Sat, 15 Aug 2020 18:30:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729254AbgHOWan (ORCPT ); Sat, 15 Aug 2020 18:30:43 -0400 Received: from mail-io1-xd48.google.com (mail-io1-xd48.google.com [IPv6:2607:f8b0:4864:20::d48]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55BDBC0045B7 for ; Sat, 15 Aug 2020 13:03:06 -0700 (PDT) Received: by mail-io1-xd48.google.com with SMTP id k10so7851410ioh.22 for ; Sat, 15 Aug 2020 13:03:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=GL4DVB34UG1iqD0+jY4irCmmCEbZL1uTh6mw9vlItmk=; b=K+0zPQau+AVLJdRVdghWc6Ox5tbjbIc7ve8BHAlkllkGrbCT2WLUKZfzxMMHANucgv cHJ68z/3GqpUstAauB38JY7cqAR0UFP/DZ+zPMJUZnjgIxVkDYzbtkjZqe94jXQVVokP v1X6vRpJPHJbny0HBHS9ATRsz8ZrJzWRxSWlk49WdL0ejNsw+R25BQtxOWeirgBljovA ++XVEe1CtsPuzx51AahBxOqhLEQ3I/qRREtYnUeafjnBtl0lkGjngCDlFhAgdF60DaL4 n9bP2f/67bqPQBJRDbbLdumIF+3MhWUqEgLh+KE/kiaBOWAI5fo5kylHNGvai6/L+8hY wXvA== X-Gm-Message-State: AOAM532kD/SCuPxTZIqN9pSA3jfWFkHqfnHJ3qrl6+y5JRY5VMtJCCMR lUx9WjN4F+M/snyI+S+hpj/s/O5e5XsozG1XuvQmSiOhRtSO X-Google-Smtp-Source: ABdhPJwdTmBisU2wAY2tIbzM3sMi0k8roJATOzeZ3Cok9bb17JPYOxx0ftj7w2o6tEV0k/n7ffBFf8rJeLR+Tlx+Ol4cIbF5UNVl MIME-Version: 1.0 X-Received: by 2002:a92:354d:: with SMTP id c74mr7061356ila.27.1597521785710; Sat, 15 Aug 2020 13:03:05 -0700 (PDT) Date: Sat, 15 Aug 2020 13:03:05 -0700 In-Reply-To: <00000000000077346605a5a70a32@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008eef2f05acf006f8@google.com> Subject: Re: KASAN: out-of-bounds Read in pebs_update_state From: syzbot To: acme@kernel.org, alexander.shishkin@linux.intel.com, bp@alien8.de, daniel.vetter@ffwll.ch, gregkh@linuxfoundation.org, hpa@zytor.com, jolsa@redhat.com, linux-kernel@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org, penguin-kernel@I-love.SAKURA.ne.jp, penguin-kernel@i-love.sakura.ne.jp, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 033724d6864245a11f8e04c066002e6ad22b3fd0 Author: Tetsuo Handa Date: Wed Jul 15 01:51:02 2020 +0000 fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ed4181900000 start commit: e99332e7 gcc-10: mark more functions __init to avoid secti.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=8a96cf498e199d8b dashboard link: https://syzkaller.appspot.com/bug?extid=45862e7027be5d590577 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17bb1714100000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins. For information about bisection process see: https://goo.gl/tpsmEJ#bisection