FS#76852 - [polkit] pkexec must be setuid root

Attached to Project: Arch Linux
Opened by YP (knedlyk) - Friday, 16 December 2022, 23:12 GMT
Last edited by Toolybird (Toolybird) - Friday, 16 December 2022, 23:35 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To No-one
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
I noticed that since the last polkit upgrade to the version 122-1 my xfce4-power-manager stopped changing display backlight. Running xfce4-power-manager with --debug flag showed that xfpm-power-backlight-helper cannot execute because of "pkexec must be setuid root". I checked permission, it was -rwxr-xr-x. In the previous version of polkit it was -rwsr-xr-x, so I changed it to that and everything went fine.

Additional info:
* package version(s)
polkit 122-1
* config and/or log files etc.
* link to upstream bug report, if any

Steps to reproduce:
Install polkit 122-1, run
xfce4-power-manager --debug
Try to change brightness, you'll immediately get something like:

TRACE[xfpm-inhibit.c:305] xfpm_inhibit_get_inhibit_list(): entering xfpm_inhibit_get_inhibit_list
pkexec must be setuid root
This task depends upon

Closed by  Toolybird (Toolybird)
Friday, 16 December 2022, 23:35 GMT
Reason for closing:  Not a bug
Additional comments about closing:  See comments
Comment by Toolybird (Toolybird) - Friday, 16 December 2022, 23:34 GMT
> pkexec must be setuid root

It is already:

$ ls -l /usr/bin/pkexec
-rwsr-xr-x 1 root root 26632 Oct 27 02:34 /usr/bin/pkexec

Something/someone has tampered with your system.

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