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

[Thierry Fauck@linux.ibm.com]

On Sun, 11 Nov 2018 12:04:06 +0100 Jakub Wilk <jwilk at jwilk.net> wrote:
> * Laurent Bigonville <bigon at debian.org>, 2018-11-11, 11:18:
> >Do you have any .uuid files in these directories?
> 
> IIRC, I didn't have any back then.
> 
> >Can you try to run "fc-cache -s -f -v" (as root) and see if it helps.
> 
> I think I upgraded some font package, which triggered fontconfig, which 
> ran the aforementioned command. Yes, it did help.
> 
> >What file system do you use for /usr/share/fonts/?
> 
> ext4
> 
> >The only occurrence I'm seeing on my system is:
> >
> >openat(AT_FDCWD, "/usr/lib/firefox/fonts/.uuid.TMP-EWjEq0", O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC, 0600) = -1 EACCES (Permission denied)
> 
> Now it's the only occurrence for me, too.
> 
> -- 
> Jakub Wilk
> 
Hello,

With current packages I don't see any more issues of openat(....)
EACESS(...) when tracing firefox-bin
Can you confirm and state about that bug
Thanks