K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2009-01-09T21:02:54.683035Z
K 7
svn:log
V 404
MFC rev. 182995

We can't implicitly trust the hook on NGQF_FN/NGQF_FN2 processing in
ng_apply_item(). There are possible (and I have got one) use-after-free
class panics because of it.

If hook is specified, require it to be valid at the apply time. The only
exceptions are the internal ng_con_part2(), ng_con_part3() and
ng_rmhook_part2() functions which are specially made to work with invalid
hooks.

END