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=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 359F6C433E0 for ; Thu, 21 Jan 2021 11:35:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E9972238EE for ; Thu, 21 Jan 2021 11:35:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730582AbhAULfV (ORCPT ); Thu, 21 Jan 2021 06:35:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728019AbhAULeh (ORCPT ); Thu, 21 Jan 2021 06:34:37 -0500 Received: from mail-yb1-xb30.google.com (mail-yb1-xb30.google.com [IPv6:2607:f8b0:4864:20::b30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C34B4C061575; Thu, 21 Jan 2021 03:33:49 -0800 (PST) Received: by mail-yb1-xb30.google.com with SMTP id f6so1683034ybq.13; Thu, 21 Jan 2021 03:33:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc :content-transfer-encoding; bh=I+cG4Vp0KOKN+ozIhgZ8d42ujiCT1czKBVqBGfsh21E=; b=QjcSscZscimEm9YXE5dIYpYuqYcpiIxJB+SPAUkEjYLDPYGtuYJyR1e/+YCFiR0qlC pDFpMw5HFKmXcyWysd1FhVkkiwiw7v2DpYdv5H8Un0R46SL6yVpM67dXd67OIZFvtDXY dpW0qo3HPREc7uTvFBrV2HliAUzJOjyhbXreHkpZ5NZFYN9Csb2Q44ryDKdkBdzsyg2Q VoumBKLrxmHUMCdVBuY/16Za7bqRWVO3VlUPwEvpVv0UDSxxSDwErL3NRwzBqW76e0s+ zuu9JC1a8X6Oy6MTQX4f5jonI9y7EqxIF9LQv0q6d2eNgRwvrVEBR8JqQdMw10JJcxBZ 8o1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc :content-transfer-encoding; bh=I+cG4Vp0KOKN+ozIhgZ8d42ujiCT1czKBVqBGfsh21E=; b=gPNofxltzAEugMNKrOdXE7iawBLU6dHZdTeRcHC+88MnZXjXEmrOh2E8hlwl/fIzqr XUzW0qan3zp9gVtw7KyIy/iLGkX9k+eXtaHJdygoNuMo8ZN4zHA6Hm04e1WMSe0oI297 6vlg1rQImp/mXMbxY6RewVihd+y33WAFYv6Zv0YlzaqoBaWz6uYFX5I59ToOKmesXG3W 8PvCEQDaBZEXzrOR5SS61nbvoCBfYOe/V1KbRx9ab5HRGPM01l853ZKEZFdpvHz+AfbE sIlwvE2lpj6gq6Yv3i93ZkKY94oM0dC+Qcy75UAQ9rysj7uUKF+Klpehi+CJd6DRZ6U6 Ppeg== X-Gm-Message-State: AOAM532QcwkZXtM1C5+jou0L2SMAH0oZETSJ7ZYkLoAqlLqYmdIGfFJH +kwiUlUMVOqa3L7BzbNZeb9GzDx4OeKzzL43xkQ= X-Google-Smtp-Source: ABdhPJx7CE06Ajx6zuXEJea156D0wq36xdLyL4K/2sS9pM1SZo8RtkpQgK8SOVM4JSKPoJSwnb6ypisyz8pGTv5Q+jY= X-Received: by 2002:a25:688c:: with SMTP id d134mr20778186ybc.477.1611228829127; Thu, 21 Jan 2021 03:33:49 -0800 (PST) MIME-Version: 1.0 From: =?UTF-8?B?5oWV5Yas5Lqu?= Date: Thu, 21 Jan 2021 19:33:23 +0800 Message-ID: Subject: "WARNING in cgroup_finalize_control" and "WARNING in cgroup_apply_control_disable" should be duplicate crash reports To: andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, cgroups@vger.kernel.org, christian@brauner.io, Daniel Borkmann , hannes@cmpxchg.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@chromium.org, linux-kernel , lizefan@huawei.com, netdev@vger.kernel.org, songliubraving@fb.com, tj@kernel.org, yhs@fb.com Cc: syzkaller-bugs , syzkaller Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dear kernel developers, I found that on the syzbot dashboard, =E2=80=9CWARNING in cgroup_finalize_control=E2=80=9D [1] and "WARNING in cgroup_apply_control_disable" [2] should share the same root cause. The reasons for the above statement: 1) the stack trace is the same, and this title difference is due to the inline property of "cgroup_apply_control_disable"; 2) their PoCs are the same as each other; If you can have any issues with this statement or our information is useful to you, please let us know. Thanks very much. [1] =E2=80=9CWARNING in cgroup_finalize_control=E2=80=9D - https://syzkaller.appspot.com/bug?id=3Dfe2fee189f1f8babd95615dcbb57871d6d18= 920a [2] =E2=80=9CWARNING in cgroup_apply_control_disable=E2=80=9D - https://syzkaller.appspot.com/bug?id=3Dba5a3ed954137643a9337f90782c90e90ba3= 02ed -- My best regards to you. No System Is Safe! Dongliang Mu