svn commit: r273487 - head/sys/kern

[Colin Percival]

On 10/22/14 16:35, Colin Percival wrote:
> Author: cperciva
> Date: Wed Oct 22 23:35:32 2014
> New Revision: 273487
> URL: https://svnweb.freebsd.org/changeset/base/273487
> 
> Log:
>   Avoid leaking data from the kernel environment: When we convert the
>   initial static environment to a dynamic one, zero the static environment
>   buffer, and zero individual values when kern_unsetenv and freeenv are
>   called.

Forgot to add, this will not be MFCed, since it would break KBI to zero
out the static environment when kernel modules could conceivably have
pointers into it.

Colin Percival