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=unavailable 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 27C5AC433E0 for ; Mon, 27 Jul 2020 16:45:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F26F92074F for ; Mon, 27 Jul 2020 16:45:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728515AbgG0QpJ (ORCPT ); Mon, 27 Jul 2020 12:45:09 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:46192 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726967AbgG0QpJ (ORCPT ); Mon, 27 Jul 2020 12:45:09 -0400 Received: by mail-il1-f198.google.com with SMTP id o4so11888137ilo.13 for ; Mon, 27 Jul 2020 09:45:08 -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=YHOnlUDfMk9Oce0Ou/WEOEHZ7nLvW59TMeR/2OpcF3Q=; b=ZJvCT2XTcZKKSzpIua3gCguPhfFeKLh/yjuQ1aiWDHPreIZDEr9GfWao8WPwMmXu4k eOLaot1yQwq9I2Udj40icqEN4K3zHG6/PcyylrQ07kglPHEjJhnFUAAMuBodYun0B542 3cBmB4zrlG+3m7J+J0SrVPMhX8msrZh9SSinf3GC3ZrK+FF1zoNSqmmZYcdwOFR8DYLR gfEZfdN7obZxUs2vJTQs46JdT+EWsRszTlcUgcXEgPIP4j93/ePKlUCDIVtXd7/TDI/X tByolVjRSyVhKueSWd/YSthWUhkwaDgsMyF/Ti7wBidPk3aiOSNumQu2rCJo7h7rQ9Zr Arag== X-Gm-Message-State: AOAM532jiE81WTC5kNShqAGi9rdeCRs0gKT6ux3m5DvyjwrngCi208h+ N1F2Yah9eSPLrE+61FjgYdWpFoOy3Wa6ADFPw5m+W+TyahB1 X-Google-Smtp-Source: ABdhPJyWPqw6wdnxG6yEAcA0v1YAdXbJ62nm7W119h3e4RaBn+6wSQs6av1fBXa58L3cKtV8U9o26rlCi8xL4nuWsto7OXO4uR+Z MIME-Version: 1.0 X-Received: by 2002:a05:6638:1649:: with SMTP id a9mr18800320jat.115.1595868308050; Mon, 27 Jul 2020 09:45:08 -0700 (PDT) Date: Mon, 27 Jul 2020 09:45:08 -0700 In-Reply-To: <00000000000072cb4c0598d25a69@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009c18f005ab6f0bc0@google.com> Subject: Re: divide error in fbcon_switch From: syzbot To: b.zolnierkie@samsung.com, daniel.thompson@linaro.org, daniel.vetter@ffwll.ch, dri-devel@lists.freedesktop.org, ghalat@redhat.com, gregkh@linuxfoundation.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, penguin-kernel@I-love.SAKURA.ne.jp, penguin-kernel@i-love.sakura.ne.jp, sam@ravnborg.org, syzkaller-bugs@googlegroups.com 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 ce684552a266cb1c7cc2f7e623f38567adec6653 Author: Tetsuo Handa Date: Sun Jul 12 11:10:12 2020 +0000 vt: Reject zero-sized screen buffer size. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=155549c4900000 start commit: 76bb8b05 Merge tag 'kbuild-v5.5' of git://git.kernel.org/p.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=dd226651cb0f364b dashboard link: https://syzkaller.appspot.com/bug?extid=13013adc4a234406c29e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17d69aeae00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fdcc2ae00000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: vt: Reject zero-sized screen buffer size. For information about bisection process see: https://goo.gl/tpsmEJ#bisection