[pkg-apparmor] Bug#1142783: broken $TMPDIR handling in postinst

[Harald Dunkel]

Please note that I don't set TMPDIR. This weird pam module that sneaked
in via some dependency does. I don't run mktemp, either. This can be
found in apparmor.postinst. Of course I could examine all the postinst
scripts before running apt install of some packages, and unset all
these variables that might lead into problems, but I doubt that this is
the way to follow.

Running mktemp I would either give it a dedicated path for a temporary
file, or I would unset a bad TMPDIR. Maybe ignoring a bad TMPDIR would
be the job of mktemp; I cannot say.


Regards
Harri

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