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 D357EC0015E for ; Thu, 27 Jul 2023 08:05:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233912AbjG0IFH (ORCPT ); Thu, 27 Jul 2023 04:05:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233821AbjG0IDF (ORCPT ); Thu, 27 Jul 2023 04:03:05 -0400 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFCE430DC for ; Thu, 27 Jul 2023 01:00:55 -0700 (PDT) Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id D5F531EC0D3F; Thu, 27 Jul 2023 10:00:53 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1690444853; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=w9/qOv4uCdvUqQJ9QBnYGRPwhodQGH23G+oMTRYnlYI=; b=cOcTNIPvnTBwKFA8zP1vJhKHHZb1wPmQuARXnNc7kKa47knjicLnvlulrZu4jOAO7mJqWD 3Y4ncPZUxMHh3J+a4CHkqelxIUDGDS+HSLX5abom8Ru+7qmOI+GHyUCYwgGBFLU8xB0Y8x cbzL/BwgLf57KmBZKVb//QVhRwYxPKQ= X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id yrM93N-xxMPf; Thu, 27 Jul 2023 08:00:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1690444850; bh=w9/qOv4uCdvUqQJ9QBnYGRPwhodQGH23G+oMTRYnlYI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KMoBo14DUk7boDQeICVNKWmsQrUII7IlpAs20KE6wcX2KR0/j89g4mVxn6ixmtKLW KSebZgdrsxHa4prjLgI+1FWW4VlpsoKO1svjDGJwAHNfau0GAZkLtUEOyHOYySuzm+ CTdaKNF2zMHxVm0GuQV7FlGLEhqKYpM80fYamBrJ2Cf2MRF8KFiPeM2dwCQkKinvu2 u/HKBRMYbGhMNOnA+2xa8Nm7+DehnCG9PKJzxu2aO+lLm31+F1gYaPXR3NnCESAPJl V7UoykTgieW9psCcWbOX9GAkbeFKQOBaW6lkLuHGXFpUDVpLV/lZnce/pr59U++BpC I0BBbAtiAci+MSqll91tvAliWpDoq0jeIX5L8NDBJMK8+FSDN0yBdvyZsSGBX7dnug L+iaTRgJpmy3RHWNL0o/XL4S/zhcZo1AxXshd2y5sXtKGQs/JV/vlJCtoyjaamzcV1 ikGCFyxHYQbBckFQcKysHKz2haOGv+rZ5h52kQE5esUbtINOofxSkwVKBkbq/YYU/W 4+UqoSDszkWK0VX8KnpPdIHnH+ctaJSVk8dDefhxW0BJAGp4aKxXZ1/LpBP4F8BRrG hYu/eg5VAh6c1kPTk4aGFaCJQVoIQwCwEoUwOZbGD+2hfUZiGaSSI/uWA3QAFC9ICI jecVbYAMIspMh+kWDxt10Z2I= Received: from zn.tnic (pd9530d32.dip0.t-ipconnect.de [217.83.13.50]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id C37B240E00F4; Thu, 27 Jul 2023 08:00:46 +0000 (UTC) Date: Thu, 27 Jul 2023 10:00:40 +0200 From: Borislav Petkov To: Nikolay Borisov Cc: x86@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86/cpu/amd: Report zenbleed in sysfs Message-ID: <20230727080040.GAZMIkKENcNIGQc1FV@fat_crate.local> References: <20230727075446.1749969-1-nik.borisov@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230727075446.1749969-1-nik.borisov@suse.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 27, 2023 at 10:54:46AM +0300, Nikolay Borisov wrote: > Initial submission of Zenbleed fix omitted reporting the bug in sysfs. > There's no reason Yeah, there is a reason - it is not a speculation vuln and people want to disable the speculation mitigations if they deem their userspace trustworthy. This one you don't want to disable ever. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette