Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754641AbbKQTMe (ORCPT ); Tue, 17 Nov 2015 14:12:34 -0500 Received: from mail-oi0-f65.google.com ([209.85.218.65]:33542 "EHLO mail-oi0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753783AbbKQTMb (ORCPT ); Tue, 17 Nov 2015 14:12:31 -0500 MIME-Version: 1.0 In-Reply-To: <20151117183444.GB108807@ubuntu-hedt> References: <1447778351-118699-1-git-send-email-seth.forshee@canonical.com> <20151117170556.GV22011@ZenIV.linux.org.uk> <20151117172551.GA108807@ubuntu-hedt> <20151117175506.GW22011@ZenIV.linux.org.uk> <20151117183444.GB108807@ubuntu-hedt> Date: Tue, 17 Nov 2015 20:12:31 +0100 Message-ID: Subject: Re: [PATCH v3 0/7] User namespace mount updates From: Richard Weinberger To: Seth Forshee Cc: Al Viro , "Eric W. Biederman" , linux-bcache@vger.kernel.org, device-mapper development , "linux-raid@vger.kernel.org" , "linux-mtd@lists.infradead.org" , linux-fsdevel , LSM , selinux@tycho.nsa.gov, Serge Hallyn , Andy Lutomirski , LKML , "Theodore Ts'o" , Octavian Purdila Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1248 Lines: 30 On Tue, Nov 17, 2015 at 7:34 PM, Seth Forshee wrote: > On Tue, Nov 17, 2015 at 05:55:06PM +0000, Al Viro wrote: >> On Tue, Nov 17, 2015 at 11:25:51AM -0600, Seth Forshee wrote: >> >> > Shortly after that I plan to follow with support for ext4. I've been >> > fuzzing ext4 for a while now and it has held up well, and I'm currently >> > working on hand-crafted attacks. Ted has commented privately (to others, >> > not to me personally) that he will fix bugs for such attacks, though I >> > haven't seen any public comments to that effect. >> >> _Static_ attacks, or change-image-under-mounted-fs attacks? > > Right now only static attacks, change-image-under-mounted-fs attacks > will be next. Do we *really* need to enable unprivileged mounting of kernel filesystems? What about just enabling fuse and implement ext4 and friends as fuse filesystems? Using the approaching Linux Kernel Libary[1] this is easy. [1] https://lkml.org/lkml/2015/11/3/706 -- Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/