Bug#909750: applications tries to write to /usr/* directories via libfontconfig1

[Chris Hofstaedtler]

* Niels Thykier <niels at thykier.net> [190413 18:28]:
> Vincas Dargis:
> > On 2019-04-13 12:50, Niels Thykier wrote:
> >> What is the status of this bug? AFAICT, we have *some* fixes from
> >> upstream but Chris's mail implies that the bug is not completely fixed.
> > 
> > This bug disappeared from my logs long time ago, at least haven't seen
> > any application reproducing it so far.
> 
> Interestingly, Chris (just Cc'ed) claims to have reproduced it about a
> week ago with libfontconfig1:amd64 using strace and to my knowledge
> libfontconfig1 hasn't changed for months in sid/buster.
> 
> @Chris: Just to confirm: Do you still see the issue?

I've given this another try, and can hopefully shed some light:

In a local X session with fluxbox, I don't see the EACCESS in
strace.

In an ssh session with X11 forwarding to an XQuartz server, I still
get the EACCESS.

Couldn't try with a remote Xorg server though, maybe someone else
can verify this.

Chris