diff options
| -rw-r--r-- | ospfd/ospf_api.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/ospfd/ospf_api.c b/ospfd/ospf_api.c index 213ee8c1fd..cfc13fcc53 100644 --- a/ospfd/ospf_api.c +++ b/ospfd/ospf_api.c @@ -514,6 +514,12 @@ struct msg *new_msg_originate_request(uint32_t seqnum, struct in_addr ifaddr, omsglen += sizeof(struct msg_originate_request) - sizeof(struct lsa_header); + if (omsglen > UINT16_MAX) { + zlog_warn("%s: LSA specified is bigger than maximum LSA size, something is wrong", + __func__); + omsglen = UINT16_MAX; + } + return msg_new(MSG_ORIGINATE_REQUEST, omsg, seqnum, omsglen); } @@ -639,6 +645,12 @@ struct msg *new_msg_lsa_change_notify(uint8_t msgtype, uint32_t seqnum, memcpy(nmsg_data, data, len); len += sizeof(struct msg_lsa_change_notify) - sizeof(struct lsa_header); + if (len > UINT16_MAX) { + zlog_warn("%s: LSA specified is bigger than maximum LSA size, something is wrong", + __func__); + len = UINT16_MAX; + } + return msg_new(msgtype, nmsg, seqnum, len); } @@ -666,6 +678,12 @@ struct msg *new_msg_reachable_change(uint32_t seqnum, uint16_t nadd, nmsg->nremove = htons(nremove); len = sizeof(*nmsg) + insz * (nadd + nremove); + if (len > UINT16_MAX) { + zlog_warn("%s: LSA specified is bigger than maximum LSA size, something is wrong", + __func__); + len = UINT16_MAX; + } + return msg_new(MSG_REACHABLE_CHANGE, nmsg, seqnum, len); } |