Detect enum store entry reference count overflow.

3 files changed, 3 insertions, 0 deletions

diff --git a/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp b/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp
index 897d8a10ec6..b527f89b224 100644
--- a/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp
+++ b/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp
@@ -41,6 +41,7 @@ void EnumAttribute<B>::load_enum_store(LoadedVector& loaded)
                     prev = value.getValue();
                     prevRefCount = 1;
                 } else {
+                    assert(prevRefCount < std::numeric_limits<uint32_t>::max());
                     prevRefCount++;
                 }
                 value.setEidx(index);
diff --git a/searchlib/src/vespa/searchlib/attribute/loadedenumvalue.h b/searchlib/src/vespa/searchlib/attribute/loadedenumvalue.h
index a8d6fc3ba68..275fadd1e7f 100644
--- a/searchlib/src/vespa/searchlib/attribute/loadedenumvalue.h
+++ b/searchlib/src/vespa/searchlib/attribute/loadedenumvalue.h
@@ -138,6 +138,7 @@ public:
         (void) docId;
         (void) weight;
         assert(e < _hist.size());
+        assert(_hist[e] < std::numeric_limits<uint32_t>::max());
         ++_hist[e];
     }
 };
diff --git a/searchlib/src/vespa/searchlib/attribute/postinglistattribute.cpp b/searchlib/src/vespa/searchlib/attribute/postinglistattribute.cpp
index 21bbec729df..19ef92c9356 100644
--- a/searchlib/src/vespa/searchlib/attribute/postinglistattribute.cpp
+++ b/searchlib/src/vespa/searchlib/attribute/postinglistattribute.cpp
@@ -93,6 +93,7 @@ PostingListAttributeBase<P>::handle_load_posting_lists_and_update_enum_store(enu
                 postings.clear();
             }
         }
+        assert(refCount < std::numeric_limits<uint32_t>::max());
         ++refCount;
         assert(elem.getDocId() < docIdLimit);
         (void) docIdLimit;