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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 F1237C433DF for ; Sat, 15 Aug 2020 21:59:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA7BD22BED for ; Sat, 15 Aug 2020 21:59:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729570AbgHOV7Y (ORCPT ); Sat, 15 Aug 2020 17:59:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728897AbgHOVvm (ORCPT ); Sat, 15 Aug 2020 17:51:42 -0400 Received: from mail-il1-x145.google.com (mail-il1-x145.google.com [IPv6:2607:f8b0:4864:20::145]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B612C08C5ED for ; Sat, 15 Aug 2020 03:18:09 -0700 (PDT) Received: by mail-il1-x145.google.com with SMTP id i66so8287636ile.6 for ; Sat, 15 Aug 2020 03:18:09 -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=aSMYatUGNqv5jWLXKfM6VYDCIDAFgzJgx/5GgNSFP4s=; b=tUATX8PPYoXt7M3zDZ55qKyMQglHSBvgqDbE8wp5wrm/TZ+/Wwkx/Sgsc4w2gPDAfu 6Pj1LdVKYm9wk27KtAWvyxRnzyn+bVOFfwMzNZIm7dWZqTNZENgnvz+LIZnscCpvXCiU l7xbWWfEZt04umeJ1EGlxHNY2RB/vtSf3CWqZtPaS+Q800G26rSVK+v1wU0RuJrLr6XZ k3sUegRxUfQjR7lqjzowMYQPF89/t8huDqmuzdmlkcLXjU0+QJjGrxTFrqe1uMNpnZJV JyoWwfM5184zvQddl5ilIOHFLPBS1OyR9nS/guXo92uVMZ4w4fUaERGL5zVIGVhfAlCR 2X8w== X-Gm-Message-State: AOAM533DZr5DB0cnLecEqQRlGZW91x67WCRo4bwEcMYE86tsdXukZd2b MxotSzgeMJfmYzgJ33YpXByMvHAkBbJAwrifNGPG6+lDINwZ X-Google-Smtp-Source: ABdhPJxa9WohqkoJcux/K8+Cn7Cm1Tp8E/EBpa4BoOZW/55b+UPuL60utKTAuqde6IT36lWruGC7XaYYmAtA/9xMATE9zbYd1D+t MIME-Version: 1.0 X-Received: by 2002:a05:6e02:ea3:: with SMTP id u3mr5809783ilj.49.1597486685361; Sat, 15 Aug 2020 03:18:05 -0700 (PDT) Date: Sat, 15 Aug 2020 03:18:05 -0700 In-Reply-To: <000000000000ff323f05a053100c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006a1b9e05ace7da39@google.com> Subject: Re: general protection fault in syscall_return_slowpath From: syzbot To: bp@alien8.de, dan.carpenter@oracle.com, daniel.vetter@ffwll.ch, dvyukov@google.com, gregkh@linuxfoundation.org, hpa@zytor.com, jannh@google.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, natechancellor@gmail.com, penguin-kernel@I-love.SAKURA.ne.jp, penguin-kernel@i-love.sakura.ne.jp, syzkaller-bugs@googlegroups.com, syzkaller@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=13f979f6900000 start commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=5d2e033af114153f dashboard link: https://syzkaller.appspot.com/bug?extid=cd66e43794b178bb5cd6 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12a42329e00000 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