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=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 2B06CC5517A for ; Thu, 22 Oct 2020 05:19:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D91312245D for ; Thu, 22 Oct 2020 05:19:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603343961; bh=AzJmVMo5bUTZn0rWFhmYbe4LLj90dDUn7CorUzcxEE0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=rsWRdyRKaown1da0LIG89+y8Yfn3n6aoU69PZxBp7oM8Ph5jlk/tzmRWgvCCOM1st AddYYdeVo/rabEPXfI7CsAbIE4BbagcyMyxedkywT6YuMgEWwgN7PmA0//5quioxGP zhjNYoCXQ2+j8gBHsSneYwt3c8wBnmt8/iIrdtmU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2507863AbgJVFTR (ORCPT ); Thu, 22 Oct 2020 01:19:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:36076 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437018AbgJVFTR (ORCPT ); Thu, 22 Oct 2020 01:19:17 -0400 Received: from sol.localdomain (172-10-235-113.lightspeed.sntcca.sbcglobal.net [172.10.235.113]) (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 DA3542145D; Thu, 22 Oct 2020 05:19:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603343956; bh=AzJmVMo5bUTZn0rWFhmYbe4LLj90dDUn7CorUzcxEE0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=A45eiXQDEQHZSU3qpky+Lib6UIb+r/i7Io8YwYs0B0N0wtY8+fW9CC7zasD5z/b2U hLnwSi4FiSS8IbbXeQQOlDtvQeaIQag0rD+cH27MlkejR2+1g9Ba37jC/kDL51fLnx sVHVYhNITgwH/G+25LRO9jR5TzzqWxN4Xdz4bb2M= Date: Wed, 21 Oct 2020 22:19:14 -0700 From: Eric Biggers To: Mark Salyzyn Cc: linux-kernel@vger.kernel.org, kernel-team@android.com, Miklos Szeredi , Jonathan Corbet , Vivek Goyal , "Eric W . Biederman" , Amir Goldstein , Randy Dunlap , Stephen Smalley , John Stultz , linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Subject: Re: [RESEND PATCH v18 0/4] overlayfs override_creds=off & nested get xattr fix Message-ID: <20201022051914.GI857@sol.localdomain> References: <20201021151903.652827-1-salyzyn@android.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201021151903.652827-1-salyzyn@android.com> Precedence: bulk List-ID: X-Mailing-List: linux-unionfs@vger.kernel.org On Wed, Oct 21, 2020 at 08:18:59AM -0700, Mark Salyzyn wrote: > Mark Salyzyn (3): > Add flags option to get xattr method paired to __vfs_getxattr > overlayfs: handle XATTR_NOSECURITY flag for get xattr method > overlayfs: override_creds=off option bypass creator_cred > > Mark Salyzyn + John Stultz (1): > overlayfs: inode_owner_or_capable called during execv > > The first three patches address fundamental security issues that should > be solved regardless of the override_creds=off feature. > > The fourth adds the feature depends on these other fixes. FYI, I didn't receive patch 4, and neither https://lkml.kernel.org/linux-fsdevel nor https://lkml.kernel.org/linux-unionfs have it either. - Eric