MFC r223930:

Remove include of sys/sbuf.h from geom/geom.h.
sbuf support is not always required for geom/geom.h users, and no need to
depend from it.

PR:		158398


git-svn-id: svn+ssh://svn.freebsd.org/base/stable/8@268415 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Revert r268415.

I botched testing and a large set of changes needs to be applied for this to
work.


git-svn-id: svn+ssh://svn.freebsd.org/base/stable/8@268422 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Fix kernel memory disclosure in control message and SCTP notifications.

Security:	FreeBSD-SA-14:17.kmem
Security:	CVE-2014-3952, CVE-2014-3953


git-svn-id: svn+ssh://svn.freebsd.org/base/stable/8@268432 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Bump __FreeBSD_version after SA-14:17.kmem so we have something
to test against in the freebsd.org cluster.


git-svn-id: svn+ssh://svn.freebsd.org/base/stable/8@268444 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f