https://bugs.kde.org/show_bug.cgi?id=526286
Bug ID: 526286
Summary: KDE Login freeze when PAM setting is invalid
Classification: Plasma
Product: plasma-login-manager
Version First unspecified
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
DESCRIPTION
Invalid or wrong PAM configuration causes KDE Login Manager to freeze, not
start.
STEPS TO REPRODUCE
1. Configure invalid PAM, in my case (session sufficient pam_mkhomedir.so) in
the file below.
OBSERVED RESULT
1. Logout (KDE Login Manager freeze, black screen), Reboot black screen.
EXPECTED RESULT
KDE Login Manager display normally, show error when it can't login, due to
invalid PAM configuration.
It should not freeze, when it starts, because it requests data it newer gets,
or something.
SOFTWARE/OS VERSIONS
Operating System: KDE Linux 202608290254
KDE Plasma Version: 6.7.80
KDE Frameworks Version: 6.30.0
Qt Version: 6.11.2
Kernel Version: 7.1.10-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i5-10210U CPU @ 1.60GHz
Memory: 32 GB of RAM (31,0 GB usable)
Graphics Processor: Intel® UHD Graphics
Manufacturer: HP
Product Name: HP 260 G4 Desktop Mini PC
ADDITIONAL INFORMATION
This is my working `/etc/pam.d/system-auth`:
```
#%PAM-1.0
-account [success=1 default=ignore] pam_systemd_home.so
account sufficient pam_mkhomedir.so
account sufficient libnss_rpc_repository.so
account required pam_unix.so
account optional pam_permit.so
account required pam_time.so
auth required pam_faillock.so
preauth
-auth [success=2 default=ignore] pam_systemd_home.so
auth sufficient pam_mkhomedir.so
auth [success=2 default=ignore] libnss_rpc_repository.so
auth [success=1 default=bad] pam_unix.so
try_first_pass nullok nodelay
auth [default=die] pam_faillock.so
authfail
auth optional pam_permit.so
auth required pam_env.so
auth required pam_faillock.so
authsucc
auth optional pam_faildelay.so
delay=0
-password [success=1 default=ignore] pam_systemd_home.so
password sufficient pam_mkhomedir.so
password sufficient libnss_rpc_repository.so
password required pam_unix.so
try_first_pass nullok nodelay shadow
password optional pam_permit.so
-session optional pam_systemd_home.so
session optional pam_mkhomedir.so
session required pam_limits.so
session optional libnss_rpc_repository.so
session required pam_unix.so
session optional pam_kwallet5.so
auto_start kwalletd=/usr/bin/ksecretd
session optional pam_permit.so
```
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