From patchwork Thu Jan 18 16:36:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Borislav Petkov X-Patchwork-Id: 189294 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2bc4:b0:101:a8e8:374 with SMTP id hx4csp464312dyb; Thu, 18 Jan 2024 08:36:36 -0800 (PST) X-Google-Smtp-Source: AGHT+IFdamdHCBuAB0S0aZV89+EfGFYV9h3MSG297g+CwRfmiGQM/dP86Kw7+zgDEfkNbriidhZK X-Received: by 2002:a05:620a:4490:b0:783:6c78:6698 with SMTP id x16-20020a05620a449000b007836c786698mr956244qkp.107.1705595796376; Thu, 18 Jan 2024 08:36:36 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1705595796; cv=pass; d=google.com; s=arc-20160816; b=g6RDOevbxOXDS1ltu1kqACI8ozXA4t993lPH5saWTZ0tKn47+0aoU45BA/TvOCcrKV npkSjlFzYUdqrGsP9sez90RYV5l/+XtDMpThXUf7wrn/+i54Pxk1pV6MsRg1njlNROAz ARwkHzysM9jGVOEMER9vCaXFfn+n6qEi8lQe+qHVrPBYCLCtqOg3uiy/cxZhrRv+lGc5 IBD5bfluwFn319Zw1vqt/iuAfdSGqOaGuKw37I8gxvOP0/M+fSMcp+hoxRm8ItM85ErM KFlPZxjsikXzGdf6Hv8jWSJIJ1Drvlaun384ErmCcxWndFFiEAASBt7jqNYk0cP/ev9T dg6g== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:message-id:date:subject:cc:to :from:dkim-signature; bh=sD3/N30wGmvZKBNq737H7B6rOdxWHGXAyv52CzsPXbs=; fh=d0u/1lsryP/BvZA3tZviZ8vPAY9VTr/tH8AfI0DJhl0=; b=U9wvpg1sitTU7R29RM8PcNie5godKM0LLd5frfG48V2N7J9Zbl96HCDFsd1tUvhaBg 5wjmeoCmHmIszDBgg6+Ik0QokMsSMdTahv3VH2rsFLoBe85XL3kr8cKrjNbVNaoKWdZz U2A/TIg2hnWZHUEC9FvECQivm+8A5OTtXTNz7huIxY/hdUjYApo/luk7jmRSQVlA27hu /JJhHYnZXx9+6jjom6NwODpjlilFCRhAqp+PTGyXgSkKA4+jGI93YOLiaomyuKHOtN0b WBdktTmNQ1pnGgM3GIGk9CqgjE58sHce5wndE7N7XQnLfy+VyhuPdD8ZR7WofCC8QSaD ZnXA== ARC-Authentication-Results: i=2; mx.google.com; dkim=neutral (body hash did not verify) header.i=@alien8.de header.s=alien8 header.b=DitAwJ3b; arc=pass (i=1 spf=pass spfdomain=alien8.de dmarc=pass fromdomain=alien8.de); spf=pass (google.com: domain of linux-kernel+bounces-30352-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-30352-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. [147.75.199.223]) by mx.google.com with ESMTPS id z13-20020a05620a260d00b00781bd7d3bb1si15087894qko.775.2024.01.18.08.36.36 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jan 2024 08:36:36 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-30352-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@alien8.de header.s=alien8 header.b=DitAwJ3b; arc=pass (i=1 spf=pass spfdomain=alien8.de dmarc=pass fromdomain=alien8.de); spf=pass (google.com: domain of linux-kernel+bounces-30352-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-30352-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 0AE001C22597 for ; Thu, 18 Jan 2024 16:36:36 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id ED6E52C6A4; Thu, 18 Jan 2024 16:36:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="DitAwJ3b" 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 smtp.subspace.kernel.org (Postfix) with ESMTPS id 4C9A51E494; Thu, 18 Jan 2024 16:36:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705595781; cv=none; b=EomoY+PBcjaYB9VgwUBxTxYjKFiBiuCh6elyiVauCAvy5gM+bUbRqfAwVXyr8ag9VK7DsCpeY6Ib68mPDdcvYxyc6S2czb0IVnVcmdIa9D7HIzYz3qZaxscYC1S4YbFe/HSqlJewQ23SIgEgiK/0iSINd7oPqghUyy31kLlXb3s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705595781; c=relaxed/simple; bh=wcbZ7v76tRyhBtRUKZXECR/2Po0l+UcB5uxgbPcmCS0=; h=Received:X-Virus-Scanned:Received:DKIM-Signature:Received:From:To: Cc:Subject:Date:Message-ID:X-Mailer:MIME-Version: Content-Transfer-Encoding; b=njfyIqVAAxVHXqCVAwS9r7RkMUJcWJIDnjI+jk3UAAPwURvw6VBnmPEivxpNuce0Mnxs+o7dy/aCcNbKD2p1eCRgkKFg+/IVIEW5ynOV7aua1qePaFPScl5krs7aBst0ok8/LgsUBAYqZjL3npkC6uvgj6Pi2Jzi+NvrNK6k62M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=fail (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=DitAwJ3b reason="signature verification failed"; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 23F6F40E0177; Thu, 18 Jan 2024 16:36:16 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=fail (4096-bit key) reason="fail (body has been altered)" 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 5XjpfSoLKVy9; Thu, 18 Jan 2024 16:36:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1705595772; bh=+tZQFnI6rl5JS9Eyh8uFIPriD1WGVARI0bN0k+Y1Xw4=; h=From:To:Cc:Subject:Date:From; b=DitAwJ3bHB/rItyAzqmTeNCxUQY0DuVN3sk8Srlgbsa9+yiC8CNv+vc5TUXDGe5Kj kwqQRh9oMQuGemGmInUSP8UwYWq4gVt7b5pWzdECn0Cix5bQkJpj3ePyvHPni7X2PJ ejTMtBJ/fdhPKinXAia/55GvzPMrv47ikgCSa6nJAIclkcVQby9aNsxt45EH1xdi5T CZt1bx42dQfKsI3/t3MywNU9UAKvLTIjxpiRs0imbjI/XZDnZFT24NABjXWQls2iyx ZnS/Lygo4hMyYS7qSRV/cKNbg4qyHIlxBozrtkd9GNbnssdoTTjzgLRKl8jbMKZHJB eTeuX2UTjlctdtQbH0ZIXGzPnvHighWUg9aKeQkArzZI+UDOAB0HC410OCdrreZQk6 ByRdZ/sPpKQJei2gcqpkEArS0F/bhw3GoiC2aveAVvBTU5gsWZ0K2QpbxKIY5/fUwU bwUdBSdxqTqJ1Ixf909JOAgzwMwXOxmzmLhlpkX1RKzYiCtJc+cxlIN88Joyl7JOk/ xz8jTDMk8AazhUOW9PRikHFtdVelJZu+rIMnSv5j6wHmUFddCm4qRZXuuqUIxr4eZZ PPNov3I9eWN2zTqd2m7l6dD3+GZRwjL5ija/pkgB+Xmk/GIuisqH0ixIWF+hhQux2O LyyzgFdWkBcjlVkDdjYy+KCc= Received: from zn.tnic (pd9530f8c.dip0.t-ipconnect.de [217.83.15.140]) (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 E9C9B40E01BB; Thu, 18 Jan 2024 16:36:07 +0000 (UTC) From: Borislav Petkov To: LKML Cc: Jonathan Corbet , X86 ML , linux-doc@vger.kernel.org Subject: [PATCH] Documentation/kernel-parameters: Add spec_rstack_overflow to mitigations=off Date: Thu, 18 Jan 2024 17:36:00 +0100 Message-ID: <20240118163600.17857-1-bp@alien8.de> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788446817549376662 X-GMAIL-MSGID: 1788446817549376662 From: "Borislav Petkov (AMD)" mitigations=off disables the SRSO mitigation too. Add it to the list. Signed-off-by: Borislav Petkov (AMD) --- Documentation/admin-guide/kernel-parameters.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a36cf8cc582c..65b47c23d55a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3397,6 +3397,7 @@ nospectre_v1 [X86,PPC] nospectre_v2 [X86,PPC,S390,ARM64] retbleed=off [X86] + spec_rstack_overflow=off [X86] spec_store_bypass_disable=off [X86,PPC] spectre_v2_user=off [X86] srbds=off [X86,INTEL]