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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C99AC433EF for ; Wed, 20 Oct 2021 21:17:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB5A561215 for ; Wed, 20 Oct 2021 21:17:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229943AbhJTVUL (ORCPT ); Wed, 20 Oct 2021 17:20:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:53522 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229695AbhJTVUK (ORCPT ); Wed, 20 Oct 2021 17:20:10 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7FD43611ED; Wed, 20 Oct 2021 21:17:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1634764675; bh=BnQTxtojjF/PTz3YMCCVZw9gPu66dJaMnfuhU/HD+pk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=WgQtmmh1C7pd8EbySWe2vnurHbf5JFmTikQiLDgJjl0t3NdveIGTduAAHpVYzSdZV 44MyNK0Fq6HD5GDxfjUD0qaSaLcBC3RD1FWA3Bpst9xFJ6x26l+WrF/Za3wETOmbKA w6tuCEZvFOmGiddpmWdwNqp3RU3MxK9xDECgyINQ= Date: Wed, 20 Oct 2021 14:17:53 -0700 From: Andrew Morton To: Kees Cook Cc: Arnd Bergmann , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH] kasan: test: Consolidate workarounds for unwanted __alloc_size() protection Message-Id: <20211020141753.6d1ac5ef251367bef260a3fc@linux-foundation.org> In-Reply-To: <20211020193807.40684-1-keescook@chromium.org> References: <20211020193807.40684-1-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-hardening@vger.kernel.org On Wed, 20 Oct 2021 12:38:07 -0700 Kees Cook wrote: > This fixes kasan-test-use-underlying-string-helpers.patch to avoid needing > new helpers. As done in kasan-test-bypass-__alloc_size-checks.patch, > just use OPTIMIZER_HIDE_VAR(). Additionally converts a use of > "volatile", which was trying to work around similar detection. > > ... > > Can you please collapse this into your series? Folding it into something else is messy, due to dependencies and ordering/timing issues. I queued it as a standalone thing.