commit 9e99d08470c455d3ea8fc73e01a244d492fff989
author Garret Rieger <grieger@google.com> Thu Sep 08 23:19:02 2022 +0000
committer Garret Rieger <grieger@google.com> Thu Dec 01 20:17:41 2022 +0000
tree 7a1496bbe5ae1cbf4204ac974223a70b5af9ecfe
parent edf7a29595f01bf5548587476b37efdc24c500f1

[repacker] validate link widths during repacker setup.

src/graph/graph.hh

diff --git a/src/graph/graph.hh b/src/graph/graph.hh
index 8a947ab..825a355 100644
--- a/src/graph/graph.hh
+++ b/src/graph/graph.hh
@@ -58,6 +58,13 @@
         unsigned start = l.position;
         unsigned end = start + l.width - 1;
 
+        if (unlikely (l.width < 2 || l.width > 4))
+        {
+          DEBUG_MSG (SUBSET_REPACK, nullptr,
+                     "Invalid graph. Invalid link width.");
+          return false;
+        }
+
         if (unlikely (end >= table_size ()))
         {
           DEBUG_MSG (SUBSET_REPACK, nullptr,