K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2014-02-21T22:29:09.359795Z
K 7
svn:log
V 234
Fix a race between kern_proc_{o,}filedesc_out and fdescfree leading
to use-after-free.

fdescfree proceeds to free file pointers once fd_refcnt reaches 0, but
kern_proc_{o,}filedesc_out only checked for hold count.

MFC after:	3 days

END