[Bug 1865517] Re: cannot log in with long username
Steve Langasek
steve.langasek at canonical.com
Mon Mar 9 19:31:30 UTC 2020
for the record I don't find any hard-coded limit on username length in
pam.
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https://bugs.launchpad.net/bugs/1865517
Title:
cannot log in with long username
Status in util-linux package in Ubuntu:
Triaged
Bug description:
We use ldap authentication with mail addresses as usernames.
So usernames are not posix and some are > 32 chars but are working.
Some of them fire a bug :
When trying to log, it doesn't asks for password, it just wait some seconds then reset to ask username.
I can't clearly identify which regex fire the bug or not but this one does
"username.lastnamelastnamelastname at domain.fr"
I reproduce it on ubuntu 18.04 and 20.04 daylibuild.
In auth.log, that line pops up when bug is started
"Mar 2 16:23:14 premier agetty[97945]: checkname failed: Operation
not permitted"
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