diff options
| -rw-r--r-- | bgpd/bgp_attr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bgpd/bgp_attr.c b/bgpd/bgp_attr.c index b3944e5f28..47d9d3ad35 100644 --- a/bgpd/bgp_attr.c +++ b/bgpd/bgp_attr.c @@ -1894,7 +1894,7 @@ bgp_attr_cluster_list(struct bgp_attr_parser_args *args) * malformed, the UPDATE message SHALL be handled using the approach * of "treat-as-withdraw". */ - if (length % 4) { + if (length == 0 || length % 4) { flog_err(EC_BGP_ATTR_LEN, "Bad cluster list length %d", length); return bgp_attr_malformed(args, BGP_NOTIFY_UPDATE_ATTR_LENG_ERR, |