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-rw-r--r--src/plugins/vrrp/vrrp_packet.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/vrrp/vrrp_packet.c b/src/plugins/vrrp/vrrp_packet.c
index f624b1876c3..6b0d4c96c2d 100644
--- a/src/plugins/vrrp/vrrp_packet.c
+++ b/src/plugins/vrrp/vrrp_packet.c
@@ -282,6 +282,16 @@ vrrp_adv_send (vrrp_vr_t * vr, int shutdown)
if (is_unicast)
n_buffers = vec_len (vr->config.peer_addrs);
+ if (n_buffers < 1)
+ {
+ /* A unicast VR will not start without peers added so this should
+ * not happen. Just avoiding a crash if it happened somehow.
+ */
+ clib_warning ("Unicast VR configuration corrupted for %U",
+ format_vrrp_vr_key, vr);
+ return -1;
+ }
+
vec_validate (bi, n_buffers - 1);
if (vlib_buffer_alloc (vm, bi, n_buffers) != n_buffers)
{