NDLI: MemSafe: Ensuring the Spatial and Temporal Memory Safety of C at Runtime

Content Provider	IEEE Xplore Digital Library
Author	Simpson, M.S. Barua, R.K.
Copyright Year	2010
Abstract	Memory access violations are a leading source of unreliability in C programs. As evidence of this problem, a variety of methods exist that retrofit C with software checks to detect memory errors at runtime. However, these methods generally suffer from one or more drawbacks including the inability to detect all errors, the use of incompatible metadata, the need for manual code modifications, and high runtime overheads. In this paper, we present a compiler analysis and transformation for ensuring the memory safety of C called MemSafe. MemSafe makes several novel contributions that improve upon previous work and lower the cost of safety. These include (1) a method for modeling temporal errors as spatial errors, (2) a metadata representation that combines features of both object - and pointer-based approaches, and (3) a dataflow representation that simplifies optimizations for removing unneeded checks. MemSafe is capable of detecting real errors with lower overheads than previous efforts. Experimental results show that MemSafe detects all memory errors in 6 programs with known violations and ensures complete safety with an average overhead of 87% on 30 large programs widely-used in evaluating error detection tools.
Starting Page	199
Ending Page	208
File Size	308655
Page Count	10
File Format	PDF
ISBN	9781424486557
DOI	10.1109/SCAM.2010.15
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-12
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Safety Runtime Software Memory management Databases Resource management Arrays C Memory Safety Reliability Verification Languages
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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MemSafe: Ensuring spatial and temporal memory safety of C at runtime (2010)

MemSafe: Ensuring spatial and temporal memory safety of C at runtime (2010)

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