elfcode.h memory leak?

[Doug Evans]

elf_slurp_symbol_table has this:

      symbase = ((elf_symbol_type *)
		 bfd_zalloc (abfd, symcount * sizeof (elf_symbol_type)));

Who's responsibility is it to free `symbase'?

bfd_canonicalize_symtab returns an array of pointers into this.
But I don't see where the actual symbol array is freed.
It isn't recorded anywhere for someone to free.

Is one supposed to just know that the first symbol pointer is a
pointer to the head of the malloc'd chunk and therefore can be
passed to free()?  Rather clumsy and fragile, so I'm guessing
I'm overlooking something.