diff options
| -rw-r--r-- | bgpd/bgp_flowspec.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/bgpd/bgp_flowspec.c b/bgpd/bgp_flowspec.c index 8d5ca5e777..f9debe43cd 100644 --- a/bgpd/bgp_flowspec.c +++ b/bgpd/bgp_flowspec.c @@ -127,6 +127,13 @@ int bgp_nlri_parse_flowspec(struct peer *peer, struct attr *attr, psize); return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW; } + + if (psize == 0) { + flog_err(EC_BGP_FLOWSPEC_PACKET, + "Flowspec NLRI length 0 which makes no sense"); + return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW; + } + if (bgp_fs_nlri_validate(pnt, psize, afi) < 0) { flog_err( EC_BGP_FLOWSPEC_PACKET, |