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-rw-r--r--src/vnet/adj/adj_mcast.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/vnet/adj/adj_mcast.c b/src/vnet/adj/adj_mcast.c
index 4454afec630..c94d28e8713 100644
--- a/src/vnet/adj/adj_mcast.c
+++ b/src/vnet/adj/adj_mcast.c
@@ -329,7 +329,12 @@ format_adj_mcast (u8* s, va_list *ap)
{
index_t index = va_arg(*ap, index_t);
CLIB_UNUSED(u32 indent) = va_arg(*ap, u32);
- ip_adjacency_t * adj = adj_get(index);
+ ip_adjacency_t * adj;
+
+ if (!adj_is_valid(index))
+ return format(s, "<invalid adjacency>");
+
+ adj = adj_get(index);
s = format(s, "%U-mcast: ",
format_fib_protocol, adj->ia_nh_proto);