METHOD AND SYSTEM FOR PERFORMING A MEMORY SAFETY CHECK OF A PROGRAM WRITTEN IN AN UNMANAGED PROGRAMMING LANGUAGE

A method for performing a memory safety check of a program coded in an unmanaged programming language includes receiving an intermediate representation (IR) of the program and performing a static analysis pass of the IR to generate annotations including a safe pointer and an unsafe pointer. The meth...

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Hauptverfasser: MALHOTRA VISHV MOHAN, TROEGER JENS
Format: Patent
Sprache:eng
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Zusammenfassung:A method for performing a memory safety check of a program coded in an unmanaged programming language includes receiving an intermediate representation (IR) of the program and performing a static analysis pass of the IR to generate annotations including a safe pointer and an unsafe pointer. The method further includes removing, during a static analysis pass of the IR, the safe pointer from the annotations, inserting, into the IR using the annotations, a sandbox function call at the unsafe pointer to generate a modified IR, compiling the modified IR to generate an executable version of the program, executing, inside a sandbox framework, the executable version of the program, generating, during runtime and upon reaching the sandbox function call, a metadata entry and an enhanced pointer for atomicity, and comparing, during runtime and upon reaching a use of the unsafe pointer, the metadata entry with the enhanced pointer.