From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D47D0127B68; Tue, 30 Apr 2024 09:21:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714468906; cv=none; b=WYdKxHnbmVWtA5HphW/pGQwXF36az++V/rmjkhnOqUsUeh2aUr21uX1FagXMnD7tF/7T0mqzGK3Pf0WxaughC9e4/Pk9neVpomW8/4BIMi4L8t84Z2TUFTVv2BpJudE6j4YbwBdmaCxu4AUlXAc/h4oodXAI7Afk6mjGqtsQROc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714468906; c=relaxed/simple; bh=TdZNueaaPKLCguGskYeGbsKIkL8BHJVTSoWgSzU9fJI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=l3st94ESGZE1jAdpawcvEaoY3ufMgw5RhIgBBhwx/7wNx9HLup4aFKE0d4DqiYA2zqhjE1dXHaaJui0wRGOyn+EjShAlgXTHhrKMTxM91UyoSIQK9m9gV1ReKszfP8o2HRHS+oUASevOtknGD62mz0LeHx6urtuFzLwnk6E9mKo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=DzD4eUtc; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="DzD4eUtc" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=bHkTSQnGuEaomY/gWdm3ngyCLQOoVPGkYgrv4PBOIGs=; b=DzD4eUtcf8dJCc0qMaoSFOZzI2 9fKRjdp2FjnOVJYF70fF+0yOb5bx6/Aee66eQcrH8aJo3ykyg4XA7lIDg4Cr100P48sv3zckiG7/o 4LajJN1NX9hTsvzyyJPQLkg4kCLMGjxRk3f1ks4mpm2tRlECRkGnWjXAjN/BstK30FJejr0G1phAC 2osHNcyYnNEgHogICgVFOqb1qXicXSgvDpswTImy9O/GV9oCkeBWfb7MMR5BFk4oSkMBOFF/J0M7W ZKSDmvLCwJxVfbmrJ00mzF6YJxfbxv7fXXc983QOIxCtO/jZAIH0bV3eeXo82JEj7sJ7fqEc8cDqN sUojJiBw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1s1jgC-0000000EUWI-2fQc; Tue, 30 Apr 2024 09:21:40 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 4F726300684; Tue, 30 Apr 2024 11:21:40 +0200 (CEST) Date: Tue, 30 Apr 2024 11:21:40 +0200 From: Peter Zijlstra To: Kees Cook Cc: "Gustavo A. R. Silva" , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] hardening: Refresh KCFI options, add some more Message-ID: <20240430092140.GE40213@noisy.programming.kicks-ass.net> References: <20240426222940.work.884-kees@kernel.org> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240426222940.work.884-kees@kernel.org> On Fri, Apr 26, 2024 at 03:29:44PM -0700, Kees Cook wrote: > - CONFIG_CFI_CLANG=y for x86 and arm64. (And disable FINEIBT since > it isn't as secure as straight KCFI.) Oi ?