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Edit: The link.
There were lots of good titles for this submission, as in "Breaking news: Poettering clueless?" to finally disprove Betteridge's law, or "systemd surprisingly not as good as advertised" or "Breaking new: systemd broken" or "Poettering censors critics after epic fail".
Systemd implementation of "rm -rf .*" will follow ".." to upper directory and erase /
How to reproduce:
# mkdir -p /foo/dir{1,2}
# touch /foo/.bar{1,2}
# cat /etc/tmpfiles.d/test.conf
R! /foo/.* - - - - -
Reboot.
After the issue was fixed, finally Poettering added this gem of wisdom:
I am not sure I'd consider this much of a problem. Yeah, it's a UNIX pitfall, but "rm -rf /foo/.*" will work the exact same way, no?
The answer to this question, as many clarified for him, obviously is a loud "NO!". After being told a couple of times in no uncertain terms, the thread was closed for non-developers
poettering locked and limited conversation to collaborators 4 hours ago
for which I proposed the "freedom-of-speech" department (although I admit it is a weak proposal).
(Score: 2, Interesting) by Anonymous Coward on Monday April 17 2017, @09:28PM (1 child)
Funny thing is that Poettering claimed he used security best practices for both pulseaudio and avahi, with systemd getting its origin from the lessons learned from that...
(Score: 0) by Anonymous Coward on Tuesday April 18 2017, @07:32AM
Nah, he was just puttering around.