If any query makes it to the end of install_info_follow() then I think symlink_target is set to NULL. If that is followed by -EXDEV from unit_file_load_or_readlink(), then that causes basename(NULL) which segfaults pid 1. This is triggered by eg. "systemctl status crond" in RHEL9 if /etc/systemd/system/crond.service -> /ram/etc/systemd/system/crond.service -> /usr/lib/systemd/system/.crond.service.blah.blah -> /usr/lib/systemd/system/crond.service (cherry picked from commit 19cfda9fc3c60de21a362ebb56bcb9f4a9855e85) (cherry picked from commit 015b0ca9286471c05fe88cfa277dd82e20537ba8) (cherry picked from commit 9a906fae890904284fe91e29b6bdcb64429fecba)
System and Service Manager
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