From a2eeacc830438d738d21230325662fe5c22c3bf0 Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 19 Aug 2019 22:02:45 +0800 Subject: sctp: check asoc peer.asconf_capable before processing asconf asconf chunks should be dropped when the asoc doesn't support asconf feature. Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/sctp/sm_statefuns.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'net') diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 2c244b29a199..0c21c52fc408 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -3721,7 +3721,8 @@ enum sctp_disposition sctp_sf_do_asconf(struct net *net, * is received unauthenticated it MUST be silently discarded as * described in [I-D.ietf-tsvwg-sctp-auth]. */ - if (!net->sctp.addip_noauth && !chunk->auth) + if (!asoc->peer.asconf_capable || + (!net->sctp.addip_noauth && !chunk->auth)) return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands); @@ -3863,7 +3864,8 @@ enum sctp_disposition sctp_sf_do_asconf_ack(struct net *net, * is received unauthenticated it MUST be silently discarded as * described in [I-D.ietf-tsvwg-sctp-auth]. */ - if (!net->sctp.addip_noauth && !asconf_ack->auth) + if (!asoc->peer.asconf_capable || + (!net->sctp.addip_noauth && !asconf_ack->auth)) return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands); -- cgit v1.2.3