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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 6E1BEC48BD1 for ; Thu, 10 Jun 2021 23:01:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B0AF613E1 for ; Thu, 10 Jun 2021 23:01:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231151AbhFJXDs (ORCPT ); Thu, 10 Jun 2021 19:03:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230179AbhFJXDr (ORCPT ); Thu, 10 Jun 2021 19:03:47 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32A20C061574 for ; Thu, 10 Jun 2021 16:01:38 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id go18-20020a17090b03d2b029016e4ae973f7so3718604pjb.0 for ; Thu, 10 Jun 2021 16:01:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=H5c4wPtxJ4irmL/5t82UsuY3LS4vd3rmssVb2xf2eHY=; b=MeNKHjv+cbmFb/892w/ue0qm5oQAgWr1JUrlO+UnhF3F7gx/DE/XUKL9zhe8EEVGbB EqFNgff80GDDzKdGoFe+gK1TEOPEEmFh7kqTdVyQhtA6nD3BFlkBwUphWYpYsbnJ6hgu Jkb6ZhlK6ZzHSrj6Emm4WAgB8BnmiQw72t1Js= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=H5c4wPtxJ4irmL/5t82UsuY3LS4vd3rmssVb2xf2eHY=; b=qTkq9A5Lz+lK+8IL2OBd4CvBzoGYJDW+jJh4SKMuGr/Y6kyX3u/JC2P9Qe/pdv1OtQ Lejatix9sJW1EV9oHONRia++45JLyJw9L+ic3PqVyBkWDZH6QK7Vzh6LJNaHDnQ+y9zC Zxh6LEdI+0xM+nhUu3tqHjtYIV6rz1quf5jMJmSNUEUjzh71u0UH+DY6EHeCp4qXdYhn FlpiSWtXXwWHUcQBa5JzSfh4FOjS53cCtGG0nQphQnwR69+DUZZGl1/ueeAAdowPKXCm F553iaVzn+VMUWHM4xUTWkWkb0w9zYUDcyeYnjjdQPOtJCpaCsBDseDlPvRHmtS0doU1 H4UA== X-Gm-Message-State: AOAM533n+qdMYklsocQ3rdkXnCcMgJ+TMaAK8MUuBTh94mEyLBR1vH+G Df9j6KXhFsRdEG225Z9SBpj7gA== X-Google-Smtp-Source: ABdhPJzZ1Ekn9usvShs9+OF2hMkEFfpxWfgC9twP8DwMLvgr68CyHfFiKexonCRkxjyek5VxnsaQBg== X-Received: by 2002:a17:902:eb52:b029:106:50e3:b2d8 with SMTP id i18-20020a170902eb52b029010650e3b2d8mr991118pli.51.1623366097712; Thu, 10 Jun 2021 16:01:37 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id i16sm3281367pji.30.2021.06.10.16.01.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Jun 2021 16:01:36 -0700 (PDT) Date: Thu, 10 Jun 2021 16:01:36 -0700 From: Kees Cook To: "Lin, Zhenpeng" Cc: Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] slub: choose the right freelist pointer location when creating small caches Message-ID: <202106101601.E9273DD34@keescook> References: <6746FEEA-FD69-4792-8DDA-C78F5FE7DA02@psu.edu> <202106081125.E2DA4DE8@keescook> <202106081140.F73F91F@keescook> <25AB8A72-B970-47C2-8688-48126075E72E@psu.edu> <202106081614.E57675D17@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 10, 2021 at 08:20:31PM +0000, Lin, Zhenpeng wrote: > Sounds good. But I would suggest this to go to -stable as soon as possible. Because this bug is affecting the basic functionality of DCCP. It crashes kernel whenever a new socket in this module is created. But only when redzoning is enabled, yes? -- Kees Cook