** Also affects: lightdm (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: lightdm (Ubuntu Bionic)
Importance: Undecided => Low
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https://bugs.launchpad.net/bugs/1949970
Title:
attempt to dlopen nonexistent pam_kwallet.so spams log
Status in lightdm package in Ubuntu:
New
Status in lightdm source package in Bionic:
New
Status in lightdm source package in Focal:
New
Status in lightdm source package in Hirsute:
New
Status in lightdm source package in Impish:
New
Status in lightdm source package in Jammy:
New
Bug description:
[impact]
lightdm's pam.d config includes an attempt to dlopen pam_kwallet.so as
well as pam_kwallet5.so, however pam_wallet.so comes from pam-kwallet
which died around Trusty (https://launchpad.net/ubuntu/+source/pam-
kwallet) while pam_kwallet5.so comes from kwallet-pam which provides
only the newer '5' version, not the older unversioned library file.
This results in repeated spam error messages in the system log
complaining about failure to load pam_kwallet.so
[test case]
install/enable lightdm and check system log at boot for messages like:
Nov 04 18:17:47 thrain lightdm[2510]: PAM unable to dlopen(pam_kwallet.so):
/lib/security/pam_kwallet.so: cannot open shared object file: No such file or
directory
Nov 04 18:17:47 thrain lightdm[2510]: PAM adding faulty module: pam_kwallet.so
[regression potential]
any regression would likely cause problems during login and/or missing
or extra log messages during pam authentication.
[scope]
this is needed in all releases
[other info]
https://github.com/canonical/lightdm/pull/216
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