diff --git a/includes/memhub.vp b/includes/memhub.vp
index 1745e31..cdd28b4 100644
--- a/includes/memhub.vp
+++ b/includes/memhub.vp
@@ -478,6 +478,12 @@ class MemBuddy(MemManager):
             if order < 0 or order > self.max_order:
                 continue
             self._coalesce(block, order)
+        # [DET] reset-aware：记录表与 chk 栈等长（每次 alloc 各追加一条，
+        # free 只置标志不删），截断 chk_depth 必须同步截断 _det_count，
+        # 否则 reset 后旧记录仍标 active → 下一轮 alloc 复用同一块被
+        # 误报为"分配重叠/越界写"（SlotsBugTest 7B buf + 72B Token 误报根因）。
+        if self.detection != 0 and self._det_records is not None:
+            self._det_count = mark
         self._unlock()
 
     def reset_all(self):
@@ -785,6 +791,10 @@ class MemBuddy(MemManager):
         if self.usable is None:
             return 0
         self._rebuild_free_lists()
+        # [DET] reset 重建全部 free list = 全部块释放：记录表同步清空，
+        # 防止后续 alloc 复用旧块被误报（与 reset_to 截断同因）。
+        if self.detection != 0 and self._det_records is not None:
+            self._det_count = 0
         return 1
 
     # realloc override: buddy system reads original order from block header; old_size is not required