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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 718AEC32793 for ; Wed, 18 Jan 2023 19:56:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229627AbjART4D (ORCPT ); Wed, 18 Jan 2023 14:56:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229622AbjART4B (ORCPT ); Wed, 18 Jan 2023 14:56:01 -0500 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA20C59779 for ; Wed, 18 Jan 2023 11:56:00 -0800 (PST) Received: by mail-pf1-x429.google.com with SMTP id g205so10013189pfb.6 for ; Wed, 18 Jan 2023 11:56:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=YbDp48Q3hOOILfpZ0miUXgeu0J/2/eNOGKA2QWjFdrY=; b=BGM4BRxQCJT2FnyvgjsDQN3nIxysH7tavGrs+9D57hZNhRQKuDx+Ctx36iF4dlNiqN t9YMPn1ypfiqbU02AbvHA/eOFVSnMCpzvCm4wK7fEptST3UR7MZ6D2w0i4cFbbpDnapQ IGUBnnbQsVx+skyZTMGBzT6PMgFdq0sS5oAiM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=YbDp48Q3hOOILfpZ0miUXgeu0J/2/eNOGKA2QWjFdrY=; b=EpAqn2rqQQPcm153t0XxkemlXKIUCSSK/FPlCAypOMaOuEeTnOnn+JZNxF8YsRAyGV DnXFLoURMz4PnGV7UQfY4HWXCXgjB74h0ph3tABfnWSvNhcHQLlA3tDFDKzVm6dcYyps xEzYA2Z91LyTsftlGndgMF64jEz9piSD1bDvugmg3uw0pLVm68NkzFZtZWu3mWdjbk2C DWVk6HW0CNexyBh2Jc6Fx3XFV6LeBErhFiN1ORqw8qw1wmL8lbzX2Ip2FOuNbn2EyjiI qZaMlCMfUAA8NCSY4PR66jKKAshKWRkYiZAHJrkeaaPxm2il8oqQBxAf6eynWxn5t84U 3CEA== X-Gm-Message-State: AFqh2kpaKg7VACABTarSM7J/KAGMDf0gLrMD+F+7xJF6618E8wV2TooY YYS19H++FihZ5Pxw2XunWaEmBQ== X-Google-Smtp-Source: AMrXdXthGcvChMWQIWnae/fpCv6lXAcgU4mMzbDzrsC/VaLzjAzdIwXTMuYmmZQ6kBCLQlU538wSww== X-Received: by 2002:a05:6a00:1496:b0:586:35dd:91c3 with SMTP id v22-20020a056a00149600b0058635dd91c3mr11464530pfu.29.1674071760426; Wed, 18 Jan 2023 11:56:00 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id e128-20020a621e86000000b0058bc5f6426asm7538312pfe.169.2023.01.18.11.55.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Jan 2023 11:55:59 -0800 (PST) Date: Wed, 18 Jan 2023 11:55:59 -0800 From: Kees Cook To: Sean Christopherson Cc: Andrew Morton , kvm@vger.kernel.org Subject: Re: Fw: [linux-next:master] BUILD REGRESSION 9ce08dd7ea24253aac5fd2519f9aea27dfb390c9 Message-ID: <202301181155.024C8C4@keescook> References: <20230117132800.b18b01c3895c26e8d3d003aa@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Wed, Jan 18, 2023 at 07:53:10PM +0000, Sean Christopherson wrote: > +Kees, I'm guessing this came in through a hardening branch[*]. I assume using > __DECLARE_FLEX_ARRAY isn't an option since this is a uapi header. :-/ Oh, er, no. That's valid in UAPI. I guess it's missing: #include Let me send a patch. Sorry about that! -- Kees Cook