From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 62299130E36 for ; Tue, 27 Feb 2024 08:54:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709024043; cv=none; b=cY0E6QPatjXIeyU4cZn8iDfVznyMFgZ40Ko0evlVo8fSzL5AXfHOFppEuB0bXLXRtKQ7DnYs9kKmMs+67r273EnSd3A7Sh9ksQ95gcxcXE/ZbRyEpBYN/K9qc3+aGpRb4dW2iWmVL8aray/hHA6xyGOz0JXzv/XV062ZxjM171M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709024043; c=relaxed/simple; bh=TJzjCuznkFCUAn6bJt8P/l9QhPoFM6t8PZIEXOBxT64=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZK35MLfXmWzw1q2ErrXVpimhkDsuLj8CwNfEpm1gfl3H9XWptFdw8uIL9DuAuonpv8m+GvKOJ6J4eebHIxwHVuovamiPrXmPeVn95V8/3YO71iNKAibYapVT6FI8JvEoBjHw4IRJK1y5EskMgrmWYZK0AIoCKbGnBxDu7aXj8yg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=V/pYRzbS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="V/pYRzbS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D79DC433C7; Tue, 27 Feb 2024 08:54:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1709024043; bh=TJzjCuznkFCUAn6bJt8P/l9QhPoFM6t8PZIEXOBxT64=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=V/pYRzbSH9Pdg/QmEM+Gtrs3g2yj1pcVAikNAby9zhrrrvIKgCOSQUmzUEo6PTMaA bIBlkVi3bLrJ9QF4Mu2vnbFKFoRm+m7PdxNSxeqZYfJBLDDiLrDAmiR4xd3jAGyX9a ED9PkgsPSfoZasvqSJQB0gNBhyyLHgyekLvXvxw0= Date: Tue, 27 Feb 2024 09:54:00 +0100 From: Greg KH To: Pawan Gupta 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: <2024022740-smugness-cone-e80c@gregkh> References: <20240226-delay-verw-backport-6-6-y-v1-0-aa17b2922725@linux.intel.com> 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: <20240226-delay-verw-backport-6-6-y-v1-0-aa17b2922725@linux.intel.com> 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. I'm dropping all of these backports from my review queue, please resend the fixed up series when they are ready. thanks, greg k-h