3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Saran Maruti Ramanara <saran.n...@telus.com>

[ Upstream commit cfbf654efc6d78dc9812e030673b86f235bf677d ]

When making use of RFC5061, section 4.2.4. for setting the primary IP
address, we're passing a wrong parameter header to param_type2af(),
resulting always in NULL being returned.

At this point, param.p points to a sctp_addip_param struct, containing
a sctp_paramhdr (type = 0xc004, length = var), and crr_id as a correlation
id. Followed by that, as also presented in RFC5061 section 4.2.4., comes
the actual sctp_addr_param, which also contains a sctp_paramhdr, but
this time with the correct type SCTP_PARAM_IPV{4,6}_ADDRESS that
param_type2af() can make use of. Since we already hold a pointer to
addr_param from previous line, just reuse it for param_type2af().

Fixes: d6de3097592b ("[SCTP]: Add the handling of "Set Primary IP Address" 
parameter to INIT")
Signed-off-by: Saran Maruti Ramanara <saran.n...@telus.com>
Signed-off-by: Daniel Borkmann <dbork...@redhat.com>
Acked-by: Vlad Yasevich <vyasev...@gmail.com>
Acked-by: Neil Horman <nhor...@tuxdriver.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 net/sctp/sm_make_chunk.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2595,7 +2595,7 @@ do_addr_param:
 
                addr_param = param.v + sizeof(sctp_addip_param_t);
 
-               af = sctp_get_af_specific(param_type2af(param.p->type));
+               af = sctp_get_af_specific(param_type2af(addr_param->p.type));
                if (af == NULL)
                        break;
 


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