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[Launchpad Bug Tracker <2111495@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug:

gsd-smartcard, which is the GDM/GNOME process that monitors the
smartcard/PKI device status, fails to detect a new slot when hotplug
connected to a host.

the result is if a system is booted with no smartcard reader (or pki
device like a yubikey) connected, then gsd-smartcard never directs GDM
to use the smartcard PAM stack. (also does not detect other features
like lock on removal)

all versions are affected.

note this is only an issue when smartcard/MFA enforcement is enabled.
(passwords disabled). if sssd is called becuase passwords are allowed,
sssd will still do the correct behavior and detect the smartcard to
allow login.

reproduce

* boot system without any PKI device attached
* relaunch gsd-smartcard with debug output
killall gsd-smartcard; /usr/libexec/gsd-smartcard -v
* attach smartcard reader or PKI device and insert smartcard
* observe behavior

* repeat but boot with reader attached
* observe different behavior

upstream bug report
https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/782
upstream patch
https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/commit/88e90f2748f08f14d3f635939f3f85f05f66ecb3

** Affects: gnome-settings-daemon (Ubuntu)
     Importance: Undecided
         Status: New

-- 
gsd-smartcard fails to detect slots when no slots are attached at launch
https://bugs.launchpad.net/bugs/2111495
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