Merge "Add boundary check for SparseTable."
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.cpp b/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.cpp
index 810827d..d336306 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.cpp
@@ -34,6 +34,12 @@
const int indexTableReadingPos = getPosInIndexTable(id);
const int index = mIndexTableBuffer->readUint(INDEX_SIZE, indexTableReadingPos);
const int contentTableReadingPos = getPosInContentTable(id, index);
+ if (contentTableReadingPos < 0
+ || contentTableReadingPos >= mContentTableBuffer->getTailPosition()) {
+ AKLOGE("contentTableReadingPos(%d) is invalid. id: %d, index: %d",
+ contentTableReadingPos, id, index);
+ return NOT_A_DICT_POS;
+ }
const int contentValue = mContentTableBuffer->readUint(mDataSize, contentTableReadingPos);
return contentValue == NOT_EXIST ? NOT_A_DICT_POS : contentValue;
}