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From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Thu, 6 Nov 2008 12:33:33 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/netinet tcp_input.c
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bz          2008-11-06 12:33:33 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          tcp_input.c 
  Log:
  SVN rev 184720 on 2008-11-06 12:33:33Z by bz
  
  Fix a bug introduced with r182851 splitting tcp_mss() into
  tcp_mss() and tcp_mss_update() so that tcp_mtudisc() could
  re-use the same code.
  
  In case we return early and got a metricptr to pass the hostcache
  info back to the caller we need to initialize the data to a defined
  state (zero it) as tcp_hc_get() would do if there was no hit.
  Without that the caller would check on random stack garbage which
  could lead to undefined results.
  
  This only affected tcp_mss() if there was no routing entry for the peer,
  tcp_mtudisc() was not affected.
  
  MFC after:      2 months (along with r182851)
  
  Revision  Changes    Path
  1.388     +9 -1      src/sys/netinet/tcp_input.c