diff options
| -rw-r--r-- | ldpd/labelmapping.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ldpd/labelmapping.c b/ldpd/labelmapping.c index 5e1b422a41..a656626356 100644 --- a/ldpd/labelmapping.c +++ b/ldpd/labelmapping.c @@ -723,6 +723,14 @@ tlv_decode_fec_elm(struct nbr *nbr, struct ldp_msg *msg, char *buf, /* Prefix Length */ map->fec.prefix.prefixlen = buf[off]; off += sizeof(uint8_t); + if ((map->fec.prefix.af == AF_IPV4 + && map->fec.prefix.prefixlen > IPV4_MAX_PREFIXLEN) + || (map->fec.prefix.af == AF_IPV6 + && map->fec.prefix.prefixlen > IPV6_MAX_PREFIXLEN)) { + session_shutdown(nbr, S_BAD_TLV_VAL, msg->id, + msg->type); + return (-1); + } if (len < off + PREFIX_SIZE(map->fec.prefix.prefixlen)) { session_shutdown(nbr, S_BAD_TLV_LEN, msg->id, msg->type); |