The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Nov. 29, 2017
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Kostyantyn Vorobyov, Palaiseau, FR;
Nikolay Kosmatov, Saint-Cyr-l'Ecole, FR;
Julien Signoles, Fontenay-aux-Roses, FR;
Abstract
A method is provided that allows tracking boundaries of allocated memory blocks while still capturing byte-level properties. This is achieved with a particular shadow memory encoding scheme which captures boundaries and lengths of allocated memory blocks. Analyzing the shadow memory state allows detecting memory safety issues. In particular, for a memory location given by its address a, the proposed invention allows computing the following information: whether a has been allocated, whether a has been initialized, the start (base) address of the memory block a belongs to, the byte-length of the memory block a belongs to, the byte offset of a within its block. Such information allows for detection of specific memory safety issues at runtime.