From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org Subject: [Bug 120671] missing info about userns restrictions Date: Mon, 20 Jun 2016 20:32:34 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D120671 --- Comment #5 from Micha=C5=82 Zegan --- yes, what I mean is just to make soe things more detailed in case someo= ne wonders. About filesystes, you can try to test mounting an ext4 filesystem after= doing unshare of both userns and mountns, almost sure you will fail. I mean m= ounting the fs from inside of the ns. I may test that too when I have time, to = be sure, but I am almost certain that is the case, especially that mounting an a= rbitrary fs could be a security risk because uids are not shifted. --=20 You are receiving this mail because: You are watching the assignee of the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html