K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2015-03-21T20:24:03.384445Z
K 7
svn:log
V 247
fork: assign refed credentials earlier

Prior to this change the kernel would take p1's credentials and assign
them tempororarily to p2. But p1 could change credentials at that time
and in effect give us a use-after-free.

No objections from: kib

END