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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,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 AD494C47082 for ; Tue, 8 Jun 2021 20:53:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 960F16127A for ; Tue, 8 Jun 2021 20:53:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230245AbhFHUzg (ORCPT ); Tue, 8 Jun 2021 16:55:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:59998 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230241AbhFHUzf (ORCPT ); Tue, 8 Jun 2021 16:55:35 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 50FDD61185; Tue, 8 Jun 2021 20:53:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1623185608; bh=LNh7Y6mVzEZqHsWDQ4sClUvLVuVgzf2mb6C9pDd6JCg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=IPlcdF4AtoRx+wHzooyA152aUyb07j+tLH3zvr99iBtOmD12hleyCTQMETMnX1j2f wxt61+zZoxqQgLKwL1thbqXR5O5Ji/1kw82dSi0wBg179Rb9GTK9Tyw6M6jCDo4f40 86Jax7a0feg5gC4p1coavdk/ua5pJD4PFXTkTUyc= Date: Tue, 8 Jun 2021 13:53:27 -0700 From: Andrew Morton To: Kees Cook Cc: Vlastimil Babka , Marco Elver , Christoph Lameter , "Lin, Zhenpeng" , Pekka Enberg , David Rientjes , Joonsoo Kim , Roman Gushchin , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v4 0/3] Actually fix freelist pointer vs redzoning Message-Id: <20210608135327.be8a120ba3b1686bc62e6d7e@linux-foundation.org> In-Reply-To: <20210608183955.280836-1-keescook@chromium.org> References: <20210608183955.280836-1-keescook@chromium.org> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Tue, 8 Jun 2021 11:39:52 -0700 Kees Cook wrote: > This fixes redzoning vs the freelist pointer (both for middle-position > and very small caches). Both are "theoretical" fixes, in that I see no > evidence of such small-sized caches actually be used in the kernel, but > that's no reason to let the bugs continue to exist, especially since > people doing local development keep tripping over it. :) So I don't think this is suitable -stable material? It's a bit odd that patches 2&3 were cc:stable but #1 was not. Makes one afraid that 2&3 might have had a dependency anyway. So I'm thinking that the whole series can just be for 5.14-rc1, in the sent order.