The following reply was made to PR kern/27277; it has been noted by GNATS.

From: Jean-Luc Richier <Jean-Luc.Richier@imag.fr>
To: gnats-bugs@NetBSD.org
Cc: Manuel Bouyer <bouyer@rp.lip6.fr>
Subject: Re: kern/27277
Date: Fri, 21 Jan 2005 14:14:19 +0100

 The gif problem reported in kern/27277 (gif tunnels do not work in IPv6) 
 is still in NetBSD 2.0.
 It is also in kame source (kame/kame/sys/netinet/ip_encap.c)
 
 The reason is a bad initialisation of a structure: a buffer is allocated
 and filled with a mask, but the kernel code forget to do a bzero on the
 unused fields. Therefore the mask is incorrect and the search for a 
 matching gif interface fails
 To correct apply the following patch - on NetBSD2.0, but also in 
 NetBSD-current and in KAME snapshots:
 (I am not sure that the M_ZERO is needed for the addrpack field, but
   I prefer to avoid uninitialized fields)
 
 
 --- sys/netinet/ip_encap.c.DIST 2004-03-04 16:15:06.000000000 +0100
 +++ sys/netinet/ip_encap.c      2005-01-04 22:31:07.000000000 +0100
 @@ -597,12 +597,12 @@
                  goto fail;
          }
          bzero(ep, sizeof(*ep));
 -       ep->addrpack = malloc(l, M_NETADDR, M_NOWAIT);
 +       ep->addrpack = malloc(l, M_NETADDR, M_NOWAIT|M_ZERO);
          if (ep->addrpack == NULL) {
                  error = ENOBUFS;
                  goto gc;
          }
 -       ep->maskpack = malloc(l, M_NETADDR, M_NOWAIT);
 +       ep->maskpack = malloc(l, M_NETADDR, M_NOWAIT|M_ZERO);
          if (ep->maskpack == NULL) {
                  error = ENOBUFS;
                  goto gc;
 
 
 
 
 
 -- 
 Jean-Luc RICHIER (Jean-Luc.Richier@Imag.Fr  richier@imag.fr)
 Laboratoire Logiciels, Systemes et Reseaux (LSR-IMAG)
 IMAG-CAMPUS, BP 72, F-38402 St Martin d'Heres Cedex
 Tel : +33 4 76 82 72 32 Fax : +33 4 76 82 72 87