diff options
Diffstat (limited to 'net/sctp/chunk.c')
| -rw-r--r-- | net/sctp/chunk.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c index 9f28a9aae976..f889a84f264d 100644 --- a/net/sctp/chunk.c +++ b/net/sctp/chunk.c @@ -206,7 +206,16 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, max_data -= SCTP_PAD4(sizeof(struct sctp_auth_chunk) + hmac_desc->hmac_len); - shkey = asoc->shkey; + if (sinfo->sinfo_tsn && + sinfo->sinfo_ssn != asoc->active_key_id) { + shkey = sctp_auth_get_shkey(asoc, sinfo->sinfo_ssn); + if (!shkey) { + err = -EINVAL; + goto errout; + } + } else { + shkey = asoc->shkey; + } } /* Check what's our max considering the above */ |