two new kernel errata

Patches are now available for 5.5 and 5.6 which fix two kernel errata.

5.5 errata 16 and 5.6 errata 10:
Several bugs were fixed that allowed a crash from remote when an active
pipex session exists.

5.5 errata 17 and 5.6 errata 11:
An incorrect memcpy call would result in corrupted MAC addresses when
using PPPOE.

Users who don't use don't use PPPOE or PIPEX are not affected, but can
still apply the patches.

Links:

http://www.openbsd.org/errata55.html
http://ftp.openbsd.org/pub/OpenBSD/patches/5.5/common/016_pipex.patch.sig
http://ftp.openbsd.org/pub/OpenBSD/patches/5.5/common/017_pppoe.patch.sig

and

http://www.openbsd.org/errata56.html
http://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/010_pipex.patch.sig
http://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/011_pppoe.patch.sig