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=-13.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL 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 D7E7BC33CA9 for ; Tue, 14 Jan 2020 06:38:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A804C207FD for ; Tue, 14 Jan 2020 06:38:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="TTrsvdN8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728794AbgANGiR (ORCPT ); Tue, 14 Jan 2020 01:38:17 -0500 Received: from mail-qt1-f169.google.com ([209.85.160.169]:42205 "EHLO mail-qt1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726279AbgANGiR (ORCPT ); Tue, 14 Jan 2020 01:38:17 -0500 Received: by mail-qt1-f169.google.com with SMTP id j5so11517848qtq.9 for ; Mon, 13 Jan 2020 22:38:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=j27ycO1Qzm9iEV8CqIJq72NKE5/Ygqvss6mRjlLhUm4=; b=TTrsvdN8TyCGo5Ytcl+c4OkA3eymLUCmdpMK3rgszmiy3/Ii+n+5zncBnIpXnV12pu o/+wkof8owg8rSqg4wA28O6Vz0Z1dB3CLq/O1JkgLdrSohQ8WVc01M8GTw9gu17kBVbT hr/6xWVnnt5XTUQbCZe8MDphN0KUmfHCEAIcHbFiznr6wkTtP152j8FuRamJ5HeFGf7y wbKZwyaIE9RiGu4vsWfjTiL/XxyeuWPIYKmFvwg3HngJ1HeSY812ZynY9RFgDKXYWmhR KaH9qMMeunbNG3frv9QSjXt61k/9WEh91ko5+lvL/7STHNg8vPt/AwGlVKZ4oyxKt2oJ YQMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=j27ycO1Qzm9iEV8CqIJq72NKE5/Ygqvss6mRjlLhUm4=; b=hJeRCifNkYxwzbpfUoDbVrHD1K8KTgmArgvf2WknWrAxGxHPpFBab512fMeQTrjsUA E5B/zyL1JJMndzme3zk2PbE1RPjcSQxj7T6oGJgoygCVdfm3rHawE6DvCt0bDoTz8qGd 65X7lGE3k8RIIwmWyA+PgMmCNZAok8KlKa0orCOL7tYEIKOulmv4luyka5/djtMAkbsN cppc2yAOZhVxJkTPUpdoT1ECS7XUcxdZA1++xgv17K9c2Ev0ndeapYZMgH41AuCJ03Dt 3Qx9TD3xKb6E+nC6INl7FAP922VvVO6zj6BMcejaf6MLC6yjUVLzN+UCdQL6uy0E/qcZ hp8Q== X-Gm-Message-State: APjAAAW0guEyuY86OnEX1UYtJOPOoVo4oAqBvWT6X374LVSrME3ucgpJ t5DoWf9AdzaDdpI+wcjis9dqDh/Uv9WK7N1P9FLBxcBCdI0= X-Google-Smtp-Source: APXvYqywyrhyQlNSSAj//8mo08SVs7dFbe6uys8wVkYdCxpIOjc6M5fxoWTQts0Wqh0VLoP+pQp6rkOV+807JIijbvc= X-Received: by 2002:aed:2465:: with SMTP id s34mr2292049qtc.158.1578983896143; Mon, 13 Jan 2020 22:38:16 -0800 (PST) MIME-Version: 1.0 References: <8645e64d639e9213bf68d0fdbee0c297.squirrel@imail.cse.ust.hk> In-Reply-To: <8645e64d639e9213bf68d0fdbee0c297.squirrel@imail.cse.ust.hk> From: Dmitry Vyukov Date: Tue, 14 Jan 2020 07:38:05 +0100 Message-ID: Subject: Re: KASAN: use-after-free Read in screen_glyph_unicode To: wchenbt@cse.ust.hk Cc: LKML , syzkaller Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Wei, You should add relevant kernel maintainers to CC list when reporting kernel bugs, nobody is generally reading LKML mailing list. Please see: https://github.com/google/syzkaller/blob/master/docs/linux/reporting_kernel= _bugs.md or any other kernel bug reporting guide. On Tue, Jan 14, 2020 at 7:33 AM wrote: > > Dear Linux kernel developers, > > I found the crash =E2=80=9CKASAN: use-after-free Read in screen_glyph_uni= code=E2=80=9D > when running syzkaller, hope it=E2=80=99s unknown: > > Linux version: 1c163f4c7b3f Linux 5.0 > Branch: KASAN: use-after-free in screen_glyph drivers/tty/vt/vt.c:4566 > > Please get rhe C repo and crash log generated by syzkaller from google > drive https://drive.google.com/drive/folders/1zolqAlgnweSbr2-OzFFH2Neot4R= GMBiV?usp=3Dsharing, > as well as the .config I used for linux kernel from the attachment. > Thanks. > > Thanks, > Wei > > -- > You received this message because you are subscribed to the Google Groups= "syzkaller" group. > To unsubscribe from this group and stop receiving emails from it, send an= email to syzkaller+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgi= d/syzkaller/8645e64d639e9213bf68d0fdbee0c297.squirrel%40imail.cse.ust.hk.