Fix invalid read

2023-11-15 16:26:02 +01:00
parent a02cce0966
commit 79adcad8de
2 changed files with 13 additions and 3 deletions
--- a/engine/breeze/utils/array.c
+++ b/engine/breeze/utils/array.c
@@ -79,8 +79,10 @@ i32 _bzArrayIns(void *arr, i32 idx) {
    BZ_ASSERT(idx >= 0 && idx <= head->size);
    BZ_ASSERT(head->size + 1 <= head->capacity);

-    bzMemMove((u8 *) arr + (idx + 1) * head->stride,
-              (u8 *) arr + idx * head->stride, head->stride);
+    if (idx != head->size) {
+        bzMemMove((u8 *) arr + (idx + 1) * head->stride,
+                  (u8 *) arr + idx * head->stride, head->stride);
+    }
    head->size++;
    return idx;
 }