CVE-2022-45873

systemd 250 and 251 allows local users to achieve a systemd-coredump
deadlock by triggering a crash that has a long backtrace. This occurs in
parse_elf_object in shared/elf-util.c. The exploitation methodology is to
crash a binary calling the same function recursively, and put it in a
deeply nested directory to make its backtrace large enough to cause the
deadlock. This must be done 16 times when MaxConnections=16 is set for the
systemd/units/systemd-coredump.socket file.