From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 ACDC855E78 for ; Tue, 27 Feb 2024 09:05:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709024706; cv=none; b=CwdTNmGGcDD15m2y1+b4D/Zp2HeSjStre5SXNeiuloPJ8+2rrH0pFUSYSlmgaYkG9kYB/enweIYYBBX7smQjrHNwwbKfqt5OY5/W6oelwLvevO/ks2C8PbqK9nsiHtj0qM7eiRbnUlX0s0U1KeLiXwLmKXMcY9B1sba3Rg3bGJE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709024706; c=relaxed/simple; bh=bZ6gGQP2OTTZgnlvkymmgj6TYlUQ/gv5UiQh+pXz5v0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FJkXH1bDOMv7k/0nFWowFQMtNNjwiwEjlSM0jXtoainb4pUyxYKzJOD5J+Ma+iWCgImu9bjUYNyFaQ1o4kgthppJvXAwzwtXWVB/S+lB6gTiOQAQ1pUgWU2ohchYgv/l78rK7c7qyrGBbEDzkCZlNI5hsShSqedXvL4yt7mDrZ0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Cgz7d91t; arc=none smtp.client-ip=192.198.163.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Cgz7d91t" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709024705; x=1740560705; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=bZ6gGQP2OTTZgnlvkymmgj6TYlUQ/gv5UiQh+pXz5v0=; b=Cgz7d91tVW4qrumDnc2WimGIpEz/sZ+EHH3Euc8ze59BBXLM6FP++vZJ ya/3i8ACx42Ze61apU4byKL4N8gvD7JmS5JLnKO1HeVdvudp+UoQkgYk3 dcMV33VSNlGzS+JRtIU47jCgjAo6fqupr8tPxBt2mlCT4rJKZQXQGPEIA slnG3XunKDpZ6aOFty7D8duoGIYd1oI2OPgoMTmutFGakecN1X/0JWHgU 5gaomeGDB7lVjBvfujjLpUB2t4AyPIA8e96G1goUEtqGv6GSCTtYeWeMD NwRyKMFF7vd69YR+2ASK6wDb2558ILE5xK7Nq7kk1OPXeVlXxgh+gJQlR w==; X-IronPort-AV: E=McAfee;i="6600,9927,10996"; a="13994923" X-IronPort-AV: E=Sophos;i="6.06,187,1705392000"; d="scan'208";a="13994923" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2024 01:05:04 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,187,1705392000"; d="scan'208";a="6938401" Received: from akonar-mobl.amr.corp.intel.com (HELO desk) ([10.209.73.210]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2024 01:05:02 -0800 Date: Tue, 27 Feb 2024 01:05:00 -0800 From: Pawan Gupta To: Greg KH Cc: stable@vger.kernel.org, Dave Hansen , Alyssa Milburn , Andrew Cooper , Peter Zijlstra , Dave Hansen , Sean Christopherson , Nikolay Borisov Subject: Re: [PATCH 6.6.y 0/6] Delay VERW - 6.6.y backport Message-ID: <20240227090500.hfuo546w4cuio762@desk> References: <20240226-delay-verw-backport-6-6-y-v1-0-aa17b2922725@linux.intel.com> <2024022740-smugness-cone-e80c@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2024022740-smugness-cone-e80c@gregkh> On Tue, Feb 27, 2024 at 09:54:00AM +0100, Greg KH wrote: > On Mon, Feb 26, 2024 at 09:34:14PM -0800, Pawan Gupta wrote: > > This is the backport of recently upstreamed series that moves VERW > > execution to a later point in exit-to-user path. This is needed because > > in some cases it may be possible for data accessed after VERW executions > > may end into MDS affected CPU buffers. Moving VERW closer to ring > > transition reduces the attack surface. > > > > Patch 1/6 includes a minor fix that is queued for upstream: > > https://lore.kernel.org/lkml/170899674562.398.6398007479766564897.tip-bot2@tip-bot2/ > > Obviously I can't take this, you know that :( > > Please include the actual commit in the series, when it hits Linus's > tree. Backports to 6.6 and 6.7 will work without the commit waiting to be upstreamed. > I'm dropping all of these backports from my review queue, please resend > the fixed up series when they are ready. I will resend 6.6 and 6.7 without this change: https://lore.kernel.org/lkml/170899674562.398.6398007479766564897.tip-bot2@tip-bot2/