We want to fix low-memory issues in glibc such that we operate reliably on memory-constrained containers and low-memory high-density VMs.
We want this backport from 2.28 stable:
* time/tzfile.c (__tzfile_read): Check for memory exhaustion
when registering time zone abbreviations.
(cherry picked from commit e4e4fde51a309801af5eed72d3494cbf4b7737aa)