X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fdpo%2Fmpls_label_dpo.c;h=fa5177ab9ea1109f1d7127a2e6e59bee714a2e59;hb=f363ebd4e7cd60dada11daa0e61b64569a9e1cf6;hp=c6e8dcc475c159239e6a4f025042fb0a645d208d;hpb=73e4f7965b7f6c0ff3c1217962f76ad586af6332;p=vpp.git

diff --git a/src/vnet/dpo/mpls_label_dpo.c b/src/vnet/dpo/mpls_label_dpo.c
index c6e8dcc475c..fa5177ab9ea 100644
--- a/src/vnet/dpo/mpls_label_dpo.c
+++ b/src/vnet/dpo/mpls_label_dpo.c
@@ -16,6 +16,7 @@
 #include <vnet/ip/ip.h>
 #include <vnet/dpo/mpls_label_dpo.h>
 #include <vnet/mpls/mpls.h>
+#include <vnet/dpo/drop_dpo.h>
 
 /*
  * pool of all MPLS Label DPOs
@@ -53,6 +54,17 @@ mpls_label_dpo_create (mpls_label_t *label_stack,
     u32 ii;
 
     mld = mpls_label_dpo_alloc();
+
+    if (MPLS_LABEL_DPO_MAX_N_LABELS < vec_len(label_stack))
+    {
+        clib_warning("Label stack size exceeded");
+        dpo_stack(DPO_MPLS_LABEL,
+                  mld->mld_payload_proto,
+                  &mld->mld_dpo,
+                  drop_dpo_get(DPO_PROTO_MPLS));
+        return (mpls_label_dpo_get_index(mld));
+    }
+
     mld->mld_n_labels = vec_len(label_stack);
     mld->mld_n_hdr_bytes = mld->mld_n_labels * sizeof(mld->mld_hdr[0]);
     mld->mld_payload_proto = payload_proto;