vocab : correct bounds check for UGM XCDA array access (ggml-org#17215)

o7si · web-flow · commit ffb6f3d921bb · 2025-11-12T23:41:02.000+01:00
diff --git a/src/llama-vocab.cpp b/src/llama-vocab.cpp
@@ -1013,7 +1013,7 @@ struct llm_tokenizer_ugm_session {
         }
     private:
         uint32_t get_node(size_t index) {
-            if (index > xcda_array_size) {
+            if (index >= xcda_array_size) {
                 throw std::runtime_error("Index out of array bounds in XCDA array!");
             }
             return xcda_array[index];

Original file line number	Diff line number	Diff line change
`@@ -1013,7 +1013,7 @@ struct llm_tokenizer_ugm_session {`
`1013`	`1013`	`}`
`1014`	`1014`	`private:`
`1015`	`1015`	`uint32_t get_node(size_t index) {`
`1016`		`- if (index > xcda_array_size) {`
	`1016`	`+ if (index >= xcda_array_size) {`
`1017`	`1017`	`throw std::runtime_error("Index out of array bounds in XCDA array!");`
`1018`	`1018`	`}`
`1019`	`1019`	`return xcda_array[index];`