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-rw-r--r--src/vnet/adj/adj.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/vnet/adj/adj.c b/src/vnet/adj/adj.c
index bafa33618cb..0966d97cc6d 100644
--- a/src/vnet/adj/adj.c
+++ b/src/vnet/adj/adj.c
@@ -139,6 +139,10 @@ format_ip_adjacency (u8 * s, va_list * args)
adj_index = va_arg (*args, u32);
fiaf = va_arg (*args, format_ip_adjacency_flags_t);
+
+ if (!adj_is_valid(adj_index))
+ return format(s, "<invalid adjacency>");
+
adj = adj_get(adj_index);
switch (adj->lookup_next_index)