Sure.

For context, steveklabnik suggested that malloc will virtually never fail on basically every Linux system, because of overcommit being the default.

I showed a trivial example of malloc failing, when trying to allocate more space than on my machine.

Another example is when using resource limits. I've modified my code to malloc only 500M bytes, the set a virtual limit of 500000KiB, which works, then 40000KiB, which doesn't

  $ grep malloc tmp.c
    char *s = malloc(500000000ULL);
  $ cc tmp.c
  $ ulimit -S -v 500000
  $ ./a.out
  Look at all that memory!
  $ ulimit -S -v 400000
  $ ./a.out
  Boo, hoo!

I clearly disagree with steveklabnik's because it's easy to demonstrate cases where malloc fails on Linux-based machines.