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计算机工程 ›› 2008, Vol. 34 ›› Issue (13): 46-48. doi: 10.3969/j.issn.1000-3428.2008.13.017

• 软件技术与数据库 • 上一篇    下一篇

软件动态更新中错误状态的修复

赵冬晖   

  1. (复旦大学并行处理研究所,上海 200433)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-07-05 发布日期:2008-07-05

Tainted State Recovery During Dynamic Software Updating

ZHAO Dong-hui   

  1. (Parallel Processing Institute, Fudan University, Shanghai 200433)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-07-05 Published:2008-07-05

摘要: 针对现有动态更新方法缺乏处理已存在错误状态的被更新软件的能力,该文基于POLUS的动态更新框架,分别提出在动态更新性能时处理线程死锁、内存管理错误和数据结构错误的启示性修复方案。实验结果证明,各修复方案都能够成功地排除错误状态,实现修复目的。

关键词: 软件动态更新, 错误状态修复, 内存管理错误, 数据结构修复

Abstract: Most existing dynamic updating approaches can not recover the target application from some tainted states which are imported by the vulnerabilities. The lack of tainted states recovery can cause huge reliability disasters. This paper proposes to recover the tainted state during DSU based on the POLUS framework. Recovery solutions of deadlock, buffer overflow and data struct repair are presented and the experiments show that these approaches are viable.

Key words: Dynamic Software Updating(DSU), tainted state recovery, memory management error, data structure repair

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