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| author | Xin Long <lucien.xin@gmail.com> | 2019-08-19 17:02:45 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-20 04:27:28 +0300 |
| commit | a2eeacc830438d738d21230325662fe5c22c3bf0 (patch) | |
| tree | ccf3b2251445eb276d196c43164bda2df28f403b | |
| parent | bb2ded26028be00204dbe2153f98fbd1902a2187 (diff) | |
| download | linux-a2eeacc830438d738d21230325662fe5c22c3bf0.tar.xz | |
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 <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/sctp/sm_statefuns.c | 6 |
1 files changed, 4 insertions, 2 deletions
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); |