pkexec attempts to close all file descriptors up to sysconf(_SC_OPEN_MAX)

[Matthew Hagemann]

pkexec attempts to close all file descriptors up to
sysconf(_SC_OPEN_MAX) before executing any commands.
See: https://github.com/polkit-org/polkit/blob/11c4a81f6f732e4b1887a96cab69a1ad6a000e00/src/programs/pkexec.c#L259-L267

As of 24.10, systemd is no longer compile for Ubuntu using the
-Dbump-proc-sys-fs-nr-open=false flag. The absence of this flag causes systemd
to set file descriptor limits to their maximum.

24.04 LTS: https://git.launchpad.net/ubuntu/+source/systemd/tree/debian/rules?h=ubuntu/noble#n82
24.10: https://git.launchpad.net/ubuntu/+source/systemd/tree/debian/rules?h=ubuntu/oracular

This is causing pkexec to sit attempting to close 1073741816 file descriptors
which takes several minutes every time it was called to install a lang pack.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-initial-setup - 48~rc-1ubuntu1

---------------
gnome-initial-setup (48~rc-1ubuntu1) plucky; urgency=medium

  [ Marco Trevisan (Treviño) ]
  * Merge with debian
  * debian/salsa-ci: Use ubuntu recipe

  [ Matthew Hagemann ]
  * debian/patches/Dynamic-lang-pack-installation-support.patch
    - Removed dynamic lang pack installation from language chooser, moving it
      instead to the summary page right at the end of the flow (LP: #2101826)
    - Download is skipped if no active network connection is detected.
    - Explicitly set max file descriptors before launching GIS (LP: #2101825)

gnome-initial-setup (48~rc-1) unstable; urgency=medium

  * New upstream release

 -- Marco Trevisan (Treviño) <email address hidden> Fri, 14 Mar 2025 03:29:39 +0100