Hello,
After updating today I got the following error :
polkit-agent-helper-1: needs to be setuid root
Error: Incorrect permissions on /usr/lib/polkit-1/polkit-agent-helper-1 (needs to be setuid root)
ls -l /usr/lib/polkit-1/polkit-agent-helper-1
-rwxr-xr-x 1 root root 18456 28 déc. 13:12 /usr/lib/polkit-1/polkit-agent-helper-1
To fix the issue:
sudo chmod 4755 /usr/lib/polkit-1/polkit-agent-helper-1