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 7E204C433E0 for ; Mon, 27 Jul 2020 21:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B17D20809 for ; Mon, 27 Jul 2020 21:26:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726929AbgG0V0H (ORCPT ); Mon, 27 Jul 2020 17:26:07 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:56335 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726110AbgG0V0G (ORCPT ); Mon, 27 Jul 2020 17:26:06 -0400 Received: by mail-io1-f70.google.com with SMTP id f21so12221694ioo.23 for ; Mon, 27 Jul 2020 14:26:06 -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=C9mzOQpMUlCYKf2m16G2hyBLpPVpFOrRAgbuBtFCLhg=; b=qw4VcR254I2WjoddcZqP3o0JG+IzGQwcw2sDHeBkvbee8TtMMTBSnICvXVv/GytpPN m6J+efJH5W+Ypvf2Ppq2PaHkPwRgMsQbLWzcrzlcRxvXDRRQjoy0COftA6jdDhl8wm81 HQjEmQpud4Um5uI4hWzKbgUx6W2dbunx6lr+Mu3Pi5Lu679yVvLtmx/QvhK5cPhUlSvC D0k+IA19OjXsgTpVxp7Gsb8wZ2kImvqqfy4+j7we3v8Um2PFir6N20xkJY/aqcBaF1B7 bI9A0/JpkTgAzE3dIU1boHhiTzNcNWPtHL4bOaK9LD5cy7u60ddkth+QXfM5BpUHyNGv P/ig== X-Gm-Message-State: AOAM533HtWGeGQwtaOXuTFfMlJShvy+YyxX2fTM4T5Fj1DRaCo8KajH3 u4AiqCyP9NzwsvKSsyAGfNJa9p4a+7JeJtQEEoUDINa6lefd X-Google-Smtp-Source: ABdhPJz18y1AdlDdgyG6yqNd6AaeSLfn7Lt+IYO+uB8XlBLqcd7KMKTTICdULPavX6foDq4kV2IpCFdr8O/JSJ+q0F/uVlJEHqxA MIME-Version: 1.0 X-Received: by 2002:a05:6e02:f85:: with SMTP id v5mr24871365ilo.31.1595885165853; Mon, 27 Jul 2020 14:26:05 -0700 (PDT) Date: Mon, 27 Jul 2020 14:26:05 -0700 In-Reply-To: <000000000000dbe36f05996858db@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000069c23105ab72f8f9@google.com> Subject: Re: BUG: unable to handle kernel paging request in insert_char From: syzbot To: daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, nico@fluxnic.net, penguin-kernel@I-love.SAKURA.ne.jp, penguin-kernel@i-love.sakura.ne.jp, sam@ravnborg.org, syzkaller-bugs@googlegroups.com, textshell@uchuujin.de 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=14357d8c900000 start commit: 510c9788 Merge tag 'Wimplicit-fallthrough-5.5-rc2' of git:.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d dashboard link: https://syzkaller.appspot.com/bug?extid=6a8d618862e1fc55313d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16ed05dee00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e569b6e00000 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