[Bug 217312] [patch] /sbin/ifconfig core dumps on bad WPS frame data

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Mon Mar 5 07:15:57 UTC 2018


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217312

--- Comment #3 from commit-hook at freebsd.org ---
A commit references this bug:

Author: eadler
Date: Mon Mar  5 07:14:56 UTC 2018
New revision: 330448
URL: https://svnweb.freebsd.org/changeset/base/330448

Log:
  MFC r314181:

  [ifconfig] handle illegal WPS frames

  Some APs broadcast WPS IE frames with totally broken data.  Ifconfig's
printwpsie()
  loops through WPS frames printing the attributes out; if the frame's data is
bad,
  printwpsie() can end up looking at out-of-bounds addresses causing ifconfig
to
  bus error.

  Thanks to Takashi Inoue at Nihon U for his efforts in debugging this.

  PR:           bin/217312

Changes:
_U  stable/11/
  stable/11/sbin/ifconfig/ifieee80211.c

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