touch-packages team mailing list archive

[Steve Langasek <steve.langasek@xxxxxxxxxxxxx>]

> Right, this has been subject of countless debates,
> but it's not going to change at this point any more.

The behavior change was made for the benefit of systemd's built-in
container solution, which we do not use in Ubuntu.  Alignment with
upstream when upstream's behavior breaks our users' systems is not a
goal unto itself. Please reconsider whether this behavior is correct in
the context of *Ubuntu*, or if this behavior should be reverted in order
to un-break existing systems (including, but not limited to,
schroot+ecryptfs systems).

** Changed in: systemd (Ubuntu)
       Status: Won't Fix => New

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https://bugs.launchpad.net/bugs/1454057

Title:
  mounts are shared by default on ubuntu 15.04

Status in systemd package in Ubuntu:
  New

Bug description:
  Ubuntu 15.04:
      nir@reed:~$ grep '/ / ' /proc/self/mountinfo
      21 0 8:5 / / rw,relatime shared:1 - ext4 /dev/disk/by-uuid/70f9850c-8ebd-4881-a504-e14ec8d37f66 rw,discard,errors=remount-ro,data=ordered

  Ubuntu 14.10:
      nir@pilgrim:~$ grep '/ / ' /proc/self/mountinfo
      21 0 8:1 / / rw,relatime - ext4 /dev/disk/by-uuid/1d8ff8a8-6026-48dd-b6ce-e52b46c1f33d rw,errors=remount-ro,data=ordered

  This breaks CLONE_NEWNS and may present a security threat since
  process' private mounts are viewable to all and will persist after the
  process exits.

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