Hacktoberfest 2026：維護者為十月標記出來的 issue，仍然開放、適合新手。 瀏覽 Hacktoberfest issue

diagnostics_channel: Channel::binding_data_ dangles after environment cleanup, crashing node:sqlite at exit

未關閉
  • 哪裡不對？
#65,858 0 則留言 0 個 reaction 已指派 0 人 在 GitHub 檢視

維護者通常 1 天內回覆

還沒有人認領這個 Issue。

評估

難度
4/5
預估耗時
3-5 天
新手友好度
48/100
Issue 類型
缺陷
描述清晰度
基本清楚
活躍度
活躍
技術堆疊
javascript, node.js, sqlite
領域
backend, databases, observability

研究方向

先執行提供的 node:diagnostics_channel 與 node:sqlite 重現案例，然後透過 Environment::RunCleanup() 和 SQLite profile callback 追蹤 Channel::binding_data_。使用相同的結束情境確認修正，包括一個未明確呼叫 close() 而停留在步驟中途的 statement，並確保程序在沒有 SIGSEGV 的情況下結束。

由索引模型根據 Issue 內容生成。

描述

Version

v27.0.0-pre (2dfdb6a4206)

Platform
Darwin 25.6.0 arm64
Subsystem

diagnostics_channel, sqlite

What steps will reproduce the bug?

Channel holds its BindingData as a raw pointer that is never cleared, so any native holder that outlives environment cleanup reads a destroyed object. Here's a replication case using node:sqlite:

const dc = require('node:diagnostics_channel');
const { DatabaseSync } = require('node:sqlite');

dc.subscribe('sqlite.db.query', () => {});

const db = new DatabaseSync(':memory:');
db.exec('CREATE TABLE t(x)');
const ins = db.prepare('INSERT INTO t VALUES (?)');
for (let i = 0; i < 200; i++) ins.run(i);

// Start iterating and abandon it: the statement stays mid-step, so the
// finalize that happens at teardown fires SQLite's profile callback.
const it = db.prepare('SELECT * FROM t').iterate();
it.next();
globalThis.keepAlive = { db, it };
console.log('reached end of script');
How often does it reproduce? Is there a required condition?

Three conditions are required (all included in the example above):

  1. A subscriber on sqlite.db.query, so the SQLite profile hook is installed.
  2. A statement left mid-step at exit, so that the finalize during teardown has a started statement to profile.
  3. No explicit close(), so the statement is finalized by the destructor chain after Environment::RunCleanup() rather than before it.
What is the expected behavior? Why is that the expected behavior?

Exiting a process that used node:sqlite with a sqlite.db.query subscriber
shouldn't crash.

What do you see instead?

SIGSEGV, exit 139, after the script has finished.

主要語言
JavaScript
星號
122k
分支
38.4k
平均合併
4 天 10 小時
30 天內合併 PR
276

環境準備

從這裡開始

  1. 先讀完整個 Issue，再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫，在一個分支上完成修改。
  4. 送出 Pull Request，並在描述裡引用這個 Issue 編號。

nodejs/node 的其他 Issue

查看 nodejs/node 的全部 Issue

相似的 Issue

更多 JavaScript Issue

把新 issue 寄到你的電子郵件信箱

精選適合新手參與的 GitHub issue 摘要。