[Bug 1825812] Re: Daily apt update timer downloads all dist-upgradable packages

[Balint Reczey]

Unattended-upgrades in not affected by this bug because it downloads
only packages it would install and the configuration files it ships are
set to only do that.

It looks like software properties changes the files to include those keys.
https://sources.debian.org/src/software-properties/0.96.20.2-2/softwareproperties/SoftwareProperties.py/?hl=605#L605


** Also affects: software-properties (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1825812

Title:
  Daily apt update timer downloads all dist-upgradable packages

Status in apt package in Ubuntu:
  New
Status in software-properties package in Ubuntu:
  New
Status in unattended-upgrades package in Ubuntu:
  Invalid
Status in update-notifier package in Ubuntu:
  New

Bug description:
  [Impact]
  apt-daily.service accidentally runs apt-get -d dist-upgrade after the first time it runs unattended-upgrades -d due to the latter reusing the stamp of the former.

  This means that machines download all packages that can be dist-
  upgraded rather than just the security updates unattended-upgrades
  will install; which means they might be wasting bandwidth.

  [Test case]
  TODO

  [Regression potential]
  TODO

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