Public bug reported: I am using systemd version 248.3-1ubuntu3 from the impish repository.
It was compiled and built in the following manner: # add impish deb-src repository to apt sources apt build-dep systemd/impish apt source -b systemd/impish Once built, it was installed over the top of systemd 245.4-4ubuntu3. I am running ubuntu 20.04.2. The source tarball of systemd includes a file (./debian/systemd/lib/lsb/init-functions.d/40-systemd) which is intended to be installed into the drop-in script directory provided by the lsb- base package (/lib/lsb/init-functions.d). The problem that I am having is that this file (which is sourced by any script which sources /lib/lsb/init-functions) is setting variables, and in doing so, accidentally overwriting variables which are configured by the calling script. https://gist.github.com/TheWug/e120145f08e994d89e235e077a82ea75#file-40-systemd-L19 I noticed this when investigating why ipmiutil_wdt.service (provided by package ipmiutil) was failing to start. The problem is that the ipmiutil_wdt script, which makes use of init-functions, was statically setting some variables for later use, including one called $prog. $prog is then inadvertently overwritten by 40-systemd when ipmiutil_wdt sources /lib/lsb/init-functions. I think this is systemd's bug because systemd's lsb-base drop-in is not being a "good neighbor" to the scripts with which it shares a controlling shell. Even if ipmiutil were to rewrite its ipmiutil-wdt script, any other such script provided by another package which tries to use a variable called $prog (or $executable, or $argument, or $service, or $state, or any of a handful of others) will find its feet being stepped on by systemd's drop-in. I propose that the drop-in be modified to encapsulate all of this behavior where variables are assigned to within a function or subshell or something, so they can't accidentally contaminate the outside world. Other related package versions: lsb-base: 11.1.0ubuntu2 ipmiutil: 3.1.5-1 ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940008 Title: systemd lsb-base integration script leaking shell variable changes which can break consumers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1940008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
