Subject: Re: mmap(), security and /dev/zero
To: Jonathan Stone <>
From: Nathan J. Williams <>
List: tech-kern
Date: 06/22/2004 07:29:39
Jonathan Stone <> writes:

> 2.  ISTR our ld.elf_so doesn't require /dev/zero. What else (if anything)
>     needs /dev/zero? Or /dev/null?  Is it feasible to set up a
>     chroot directory without any /dev/ entries at all?

I had a build fail recently in a chroot setup because sort(1) requires
/dev/stdin for its handling of "-". This struck me as pretty bogus,
and relatively new (2000) to our universe, although the code dates
from lite2.

         - Nathan