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From: Shteryana Shopova <syrinx@FreeBSD.org>
Date: Mon, 7 Sep 2009 16:00:33 +0000 (UTC)
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Subject: cvs commit: src/sys/netinet in_mcast.c
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syrinx      2009-09-07 16:00:33 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          in_mcast.c 
  Log:
  SVN rev 196932 on 2009-09-07 16:00:33Z by syrinx
  
  When joining a multicast group, the inp_lookup_mcast_ifp call
  does a KASSERT that the group address is multicast, so the
  check if this is indeed true and eventually return a EINVAL if not,
  should be done before calling inp_lookup_mcast_ifp. This fixes a kernel
  crash when calling setsockopt (sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,...)
  with invalid group address.
  
  Reviewed by:    bms
  Approved by:    bms
  
  MFC after:      3 days
  
  Revision  Changes    Path
  1.28      +6 -3      src/sys/netinet/in_mcast.c