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| author | Lou Berger <lberger@labn.net> | 2022-10-28 18:06:04 +0200 |
|---|---|---|
| committer | Lou Berger <lberger@labn.net> | 2022-10-29 14:33:23 +0200 |
| commit | 53674eaba6a34f42f322f79449c2ab667884fb82 (patch) | |
| tree | 40186d76ba6fe3e16de69a469cd5c93b709fceb7 /ospfd/ospf_packet.c | |
| parent | ospfd: remove assert on zero length LSA - which is permitted by spec (diff) | |
| download | frr-53674eaba6a34f42f322f79449c2ab667884fb82.tar.xz frr-53674eaba6a34f42f322f79449c2ab667884fb82.zip | |
ospfd: catch and report runt LSAs
Signed-off-by: Lou Berger <lberger@labn.net>
Diffstat (limited to 'ospfd/ospf_packet.c')
| -rw-r--r-- | ospfd/ospf_packet.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c index 466b5fa2a..8c87a568c 100644 --- a/ospfd/ospf_packet.c +++ b/ospfd/ospf_packet.c @@ -1716,6 +1716,12 @@ static struct list *ospf_ls_upd_list_lsa(struct ospf_neighbor *nbr, break; } + if (length < OSPF_LSA_HEADER_SIZE) { + flog_warn(EC_OSPF_PACKET, + "Link State Update: LSA length too small."); + break; + } + /* Validate the LSA's LS checksum. */ sum = lsah->checksum; if (!ospf_lsa_checksum_valid(lsah)) { |