[Pkg-sysvinit-devel] Bug#815704: initscripts: Mount devpts in multi-instance mode (-o newinstance)

[nicolas at braud-santoni.eu]

Package: initscripts
Version: 2.88dsf-59.3
Severity: wishlist

Dear Maintainer,

Please consider mounting /dev/pts in multi-instance mode[0]. This involves:
- mounting /dev/pts with options newinstance and ptmxmode=0666;
- making /dev/ptmx a symlink to pts/ptmx.


This is required to be able to safely use devpts multi-instance mode in
  containers: otherwise, should a container be able to mount a new devpts,
  it would gain access to the initial kernel mount (the “host's” /dev/pts).

See the closing remark in devpts' documentation [0].


Best regards,

  nicoo

[0] https://www.kernel.org/doc/Documentation/filesystems/devpts.txt


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-0.bpo.1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages initscripts depends on:
ii  coreutils       8.24-1
ii  debianutils     4.7
ii  lsb-base        9.20160110
ii  mount           2.27.1-3
ii  sysv-rc         2.88dsf-59.3
ii  sysvinit-utils  2.88dsf-59.3

Versions of packages initscripts recommends:
ii  e2fsprogs  1.42.13-1
ii  psmisc     22.21-2.1+b1

initscripts suggests no packages.

-- no debconf information