IntRepair: Informed Fixing of Integer Overflows

07/12/2018

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by   Paul Muntean, et al.

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Integer overflows have threatened software applications for decades. Thus, in this paper, we propose a novel technique to provide automatic repair of integer overflows in C source code. Our technique, based on static symbolic execution, fuses detection, repair generation and validation. This technique is implemented in a prototype named IntRepair. We applied IntRepair to 2,052 C programs (approx. 1 million lines of code) contained in the SAMATE Juliet test suite and 50 synthesized programs that range up to 20 KLOC. Our experimental results show that IntRepair is able to effectively detect integer overflows and successfully repair them, while only increasing the source code (LOC) and binary (Kb) size by around 1 results of a user study with 30 participants showing that IntRepair repairs are more efficient than manual repairs.