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 X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E0C9C63697 for ; Sat, 21 Nov 2020 07:14:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DE67922240 for ; Sat, 21 Nov 2020 07:14:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="f2s5auFe" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726640AbgKUHOO (ORCPT ); Sat, 21 Nov 2020 02:14:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:54614 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725934AbgKUHOO (ORCPT ); Sat, 21 Nov 2020 02:14:14 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DEF732223F; Sat, 21 Nov 2020 07:14:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1605942853; bh=2gsmAi27bRo7R7CNFx36lA3IuPcYZAvhfGz15Jm323Q=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=f2s5auFeKAMWUv/XsdCBy682+ZP5bC+6qoUtAuOQDHeD62cSLvx6qA37M6+DZ6KBu vyw8RWqe2apDYKuh92YnkSyEir+tEYPXE0EpSRTRScLGi/5WJHGaghfk97UJHcNOF+ KeRq5aRPmDowz8To9DH5ocGSt5zndT5V6WglKW6o= Date: Sat, 21 Nov 2020 08:14:09 +0100 From: Greg KH To: Todd Kjos Cc: christian@brauner.io, arve@android.com, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, maco@google.com, joel@joelfernandes.org, kernel-team@android.com, smoreland@google.com Subject: Re: [PATCH] binder: add flag to clear buffer on txn complete Message-ID: References: <20201120233743.3617529-1-tkjos@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201120233743.3617529-1-tkjos@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 20, 2020 at 03:37:43PM -0800, Todd Kjos wrote: > Add a per-transaction flag to indicate that the buffer > must be cleared when the transaction is complete to > prevent copies of sensitive data from being preserved > in memory. > > Signed-off-by: Todd Kjos > --- DOes this need to be backported to stable kernels as well? thanks, greg k-h