All of lore.kernel.org
 help / color / mirror / Atom feed
From: "U.Mutlu" <for-gmane@mutluit.com>
To: util-linux@vger.kernel.org
Subject: unshare -m for non-root user
Date: Fri, 30 Oct 2015 03:09:15 +0100	[thread overview]
Message-ID: <n0ujgc$tll$1@ger.gmane.org> (raw)

Hi,
I wonder why "unshare -m" doesn't work for an unpriviledged user:

$ unshare -m /bin/bash
unshare: unshare failed: Operation not permitted
$ echo $?
1
$ ls -l `which unshare`
-rwxr-xr-x 1 root root 14640 Mar 30  2015 /usr/bin/unshare

Funny thing: when making the binary setuid then it works.
But I would prefer a working original version in the OS repository.

OS: Debian 8

# dpkg -l | grep -i util-linux
ii  util-linux                                 2.25.2-6 
            amd64        Miscellaneous system utilities

Is this a bug, or is it not supposed to work for non-root users?

-- 
Thx


             reply	other threads:[~2015-10-30  2:15 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-30  2:09 U.Mutlu [this message]
2015-10-30 10:22 ` unshare -m for non-root user Karel Zak
2015-11-14  2:43   ` U.Mutlu
2015-11-14  3:53     ` Eric W. Biederman
2015-11-14  7:25       ` U.Mutlu
2015-11-14 18:17         ` Isaac Dunham
2015-11-14 21:07           ` U.Mutlu
2015-11-15  0:49             ` U.Mutlu
2015-11-15  1:24               ` Mike Frysinger
2015-11-15  2:10                 ` U.Mutlu
2015-11-15  6:28                   ` Mike Frysinger
2015-11-15 12:06                     ` U.Mutlu
2015-11-15 12:42                       ` Mike Frysinger
2015-11-15 15:56                         ` U.Mutlu
2015-11-15 18:49                           ` Mike Frysinger
2015-11-15 20:25                           ` Ángel González
2015-11-16  2:01                             ` U.Mutlu
2015-10-30 16:49 ` Mike Frysinger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='n0ujgc$tll$1@ger.gmane.org' \
    --to=for-gmane@mutluit.com \
    --cc=util-linux@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.