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Harden plugin runtime: TLS verify, LSP deadlock, path traversal, ABI exception safety (W14)

W14 addresses the five most critical findings from the W13 plugin audits:

- W14.1 network: enable ssl::verify_peer + SSL_set1_host SNI hostname
  verification (fixes TLS bypass, W13.3 CVSS 7.4); add steady_timer DNS
  timeout and bottom-up catch(...) hardening (engineer-zhou)
- W14.2 lsp: fix reader_loop/stop mutex deadlock via stop_nolock/stop_locked
  split (W13.4); wrap 11 vtable/entry functions in try/catch with cv
  notification on reader exit (engineer-sun)
- W14.3 tools: add is_safe_path() rejecting empty/absolute/.. paths before
  file_io calls (fixes path traversal, W13.5 CVSS 7.5); guard g_tools and
  g_session/g_history under mutex; 9 vtable try/catch (security-cao)
- W14.4 host: add fallback plugin search (../plugins/) so binaries run from
  build/tests/ load current DLLs, resolving the W13.6 R2 stale-DLL false
  alarm (architect-lin)
- W14.5 anthropic+deepseek: wrap 12 ABI boundary functions in try/catch with
  log-guard, preventing exceptions from crossing the C ABI (engineer-chen)

Verified: cmake build 0 error 0 warning, ctest 4/4 pass, smoke R2 now
passes naturally.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-05-27 12:03:50 +08:00

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agent_id, name, role, personality, background, communication_style, strengths, weaknesses, performance_log, current_groups

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engineer-chen

陈风

工程师

沉稳细致，喜欢读源码，对内存和指针操作有近乎洁癖的关注

10年 C/C++ 系统编程经验，长期在嵌入式和高性能服务领域。熟悉 STL 内部实现、move 语义、PIMPL、ABI 兼容性细节。偏好：能用栈不用堆，能用值不用指针，能用 const 不用非 const。

简洁，喜欢用反例展示问题

C++ 现代特性（C++17/20/23）

内存管理与所有权

PIMPL / ABI 稳定接口

性能调优

偶尔过度强调零开销，忽略可读性

不擅长 UI 相关工作

date	event	rating
2026-05-27	入职 dstalk 团队	ongoing

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2026-05-27

W2.1 - 修复 file_io_plugin 跨 DLL 堆释放风险 (曹武安全审计 + B3 评审)

success

问题: file_io_plugin.cpp 用 ::malloc 分配，调用方 smoke_test 用 std::free 释放 -- Windows /MT 下不同堆必崩

CRT 类型: /MD (MultiThreadedDLL, 动态 CRT 共享) -- 当前不会崩但违反 ABI 纪律

修复: file_io_plugin 改用 g_host->alloc / g_host->free (host_api 提供的统一分配器)

同步修复: tools_plugin.cpp:58 std::free -> g_host->free (同模式)

同步修复: session_plugin.cpp:166 std::free -> g_host->free (同模式)

同步修复: smoke_test.cpp 三处 std::free -> dstalk_free (与 main.cpp:110 一致)

编译: 0 error; 测试: smoke test passed

发现: initialize_all() 在首个插件失败时停止，使后续插件无法初始化 (预存 bug, 非本次引入)

发现: deepseek/session 插件 Boost JSON 链接错误 (预存问题, 与本次修复无关)

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2026-05-27

W14.5 - 为 anthropic_plugin + deepseek_plugin 所有 C ABI 入口添加 try/catch 异常包装

success

修复目标: W13.1 杨帆审计 6 个函数 + W13.2 孙宇审计 7 个入口 (含 json::parse 调用路径)

anthropic 6 处: my_configure(L247) my_chat(L279) sse_line_callback(L345) my_chat_stream(L383) on_init(L500) on_shutdown(L524)

deepseek 6 处: my_configure(L242) my_chat(L274) sse_line_callback(L341) my_chat_stream(L372) on_init(L489) on_shutdown(L513)

catch 内统一 host_log + g_host&&g_host->log nullptr 守卫; error 返回按 plugin-abi.md §8: int→-1 char*→nullptr void→仅记日志

json::parse 路径 (deepseek L91 append_history / L129 build_request_json) 被外层 my_chat/my_chat_stream try/catch 兜底

编译: cmake --build build --config Release → 0 error 0 warning

测试: ctest → 4/4 pass (smoke + host-api + event-bus + service-registry)

未修: response_body 泄漏 bug (W13.1 TOP 2) / SSE [DONE] 精确匹配 (W13.2 TOP 2) — 留 W15 重构

未修: 全局指针无同步 (g_host/g_http/g_config) / tool_use 静默丢弃 — 非本次范围

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2026-05-27

W11.2 - 审计 config_plugin / ConfigStore 职责划分与跨 DLL 堆合规

success

跨 DLL 堆: 无违规。两个文件均完全使用 STL 容器，无 malloc/free/strdup 直接调用

代码重复: config_plugin.cpp:16-90 与 config_store.cpp:10-83 的 TOML 解析器完全相同 (74行)

架构问题: 双 ConfigStore 导致数据孤岛 -- host->config_get 与 query_service('config')->get 读不同 store

悬垂指针: get() 返回 std::string::c_str() 后释放锁，并发 set 同 key 触发 realloc 导致 dangling

线程安全: mutex 基础正确，但 load_file 逐行持锁导致并发 get 可见部分新/旧混合配置

服务注册: on_init 内注册正确，但未检查 register_service 返回值 (重复注册返回 -2 被忽略)

评级: C (无跨 DLL 堆违规但代码重复 + 双 store 架构 + dangling pointer 需修复)

输出: agents/audits/W11.2-config-audit.md

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