Comment # 18 on bug 1170443 from Josef M�llers

(In reply to Rainer Klier from comment #17)
> (In reply to Josef M�llers from comment #16)
> > (In reply to Rainer Klier from comment #13)
> > > (In reply to Stanislav Brabec from comment #12)
> > > > Does your su binary have SUID flag?
> > > 
> > > no:
> > > "ll /usr/bin/su"
> > > -rwxr-xr-x 1 root root 51320 15. Apr 20:10 /usr/bin/su
> > 
> > Can you please try to change that to
> > -rwsr-xr-x 1 root root 51320 15. Apr 20:10 /usr/bin/su
> > eg by "chmod 4755 /usr/bin/su" and try to reproduce the error?
> 
> it works now! :-D

Good news.

> "ll /usr/bin/su"
> -rwsr-xr-x 1 root root 51320 Apr 15 20:10 /usr/bin/s
> 
> also kdesu works.
> 
> thanks.
> so, could it be, that an update on 2020-04-24 changed the SUID flag on the
> su command?

This is highly unlikely:
1) It would need to be changed explicitly in the package's build infrastructure
2) As packages are tested before being released, this would definitely have
shown up in these tests.

So, in a nutshell: I'm (really!) afraid we won't know what the root cause for
this problem is.

So I'm closing this bug as FIXED. If you feel this is incorrect, please
re-open.