http://cypherpunk-handbook.i2p/articles/openbsd.html
But Qubes OS,
Fedora Secureblue, Tails, Whonix, Kicksecure, Arch, NixOS, and many
others use it. 30 - recallocarray(3) recallocarray is a libc function that ensures data is discarded
before allocating new memory and checks for integer overflow from
multiplication.