[pkg-apparmor] Bug#989193: Bug#989193: breaks apt-cacher-ng by blocking link operation

[intrigeri]

Control: tag -1 + upstream
Control: forwarded -1 https://gitlab.com/apparmor/apparmor-profiles/-/merge_requests/51
Control: tag -1 + moreinfo

Hi,

Eduard Bloch (2021-05-28):
> see attachment, your config which doesn't allow link calls, which
> sporadically breaks operation of apt-cacher-ng in unexpected ways.

Thanks! I've turned this patch into an upstream merge request.

I see you've made this bug RC. I'd like to better understand the
severity, so I can figure out what I should do for Bullseye.
I'm wondering because I'm using this AppArmor policy on sid with
apt-cacher-ng myself, and I can't find traces of such denials in
my logs.

Could you please help me understand what kind of apt-cacher-ng
operations (or configuration) trigger these denials and are broken by
the current AppArmor policy?

Thanks in advance,
cheers!
-- 
intrigeri