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net: sctp: fix passing wrong parameter header to param_type2af in sctp_process_param

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[ Upstream commit cfbf654efc ]

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: d6de309759 ("[SCTP]: Add the handling of "Set Primary IP Address" parameter to INIT")
Signed-off-by: Saran Maruti Ramanara <saran.neti@telus.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Saran Maruti Ramanara 2015-01-29 11:05:58 +01:00 committed by Greg Kroah-Hartman
parent a7df378ab9
commit 572d332c02
1 changed files with 1 additions and 1 deletions
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2
net/sctp/sm_make_chunk.c
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@ -2595,7 +2595,7 @@ static int sctp_process_param(struct sctp_association *asoc,
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;