From f0f809db35cc5a1338be4023c183b78a3f91005d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A8=8B=E6=99=BA=E8=B6=850668000959?=
 <cheng.zhichao@xydigit.com>
Date: Fri, 5 Jun 2026 10:12:14 +0800
Subject: [PATCH] fix(agent): add ok check for LoadAndDelete type assertion

sync.Map.LoadAndDelete returns any; unprotected type assertion could panic if an unexpected type were stored. Add ok check to safely handle mismatched types.
---
 pkg/agent/legacy_events.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkg/agent/legacy_events.go b/pkg/agent/legacy_events.go
index 30761e8e6..33fdb32d8 100644
--- a/pkg/agent/legacy_events.go
+++ b/pkg/agent/legacy_events.go
@@ -88,7 +88,10 @@ func (al *AgentLoop) UnsubscribeEvents(id uint64) {
 	if !ok {
 		return
 	}
-	sub := value.(legacyEventSubscription)
+	sub, ok := value.(legacyEventSubscription)
+	if !ok {
+		return
+	}
 	sub.cancel()
 	if sub.sub != nil {
 		_ = sub.sub.Close()