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From: Alexander Motin <mav@FreeBSD.org>
Date: Fri, 9 Jan 2009 21:02:54 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_7
Subject: cvs commit: src/sys/netgraph ng_base.c
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mav         2009-01-09 21:02:54 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/netgraph         ng_base.c 
  Log:
  SVN rev 186976 on 2009-01-09 21:02:54Z by mav
  
  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.
  
  Revision    Changes    Path
  1.135.2.12  +14 -6     src/sys/netgraph/ng_base.c