diff --git a/base/src/io_event_reactor.cpp b/base/src/io_event_reactor.cpp
index 00eb324dc4da416cccde3044561f8413da51fb82..6772e566dfd68d026ea93685b37cd9aa1f95d145 100644
--- a/base/src/io_event_reactor.cpp
+++ b/base/src/io_event_reactor.cpp
@@ -164,6 +164,10 @@ ErrCode IOEventReactor::RemoveHandler(IOEventHandler* target)
 
 bool IOEventReactor::HasHandler(IOEventHandler* target)
 {
+    if (target->fd_ >= ioHandlers_.size()) {
+        return false;
+    }
+    
     for (IOEventHandler* cur = ioHandlers_[target->fd_].head.get(); cur != nullptr; cur = cur->next_) {
         if (cur == target) {
             return true;