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.

Date of Patent:
Feb. 21, 2023

Filed:

Jan. 29, 2021
Applicant:

Oracle International Corporation, Redwood Shores, CA (US);

Inventors:

Raghavendra Ramesh, Runcorn, AU;

Nicholas John Allen, Westlake, AU;

Yang Zhao, Brisbane, AU;

Assignee:

Oracle International Corporation, Redwood Shores, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06F 21/577 (2013.01); G06F 2221/033 (2013.01);
Abstract

A method for executing a second-order taint analysis on library code may include generating, by executing a first-order taint analysis on the library code starting at a sink, a first execution path from a load instruction to the sink. The load instruction may perform: reading a first value using a first global identifier. The method may further include determining a store instruction by matching the load instruction and the store instruction. The store instruction may perform: writing a second value using a second global identifier. The method may further include, generating a second execution path from the store instruction to the load instruction, generating, by executing the first-order taint analysis on the library code starting at the store instruction, a third execution path from an entry point to the store instruction, and forming a potential second-order taint flow by joining the first, second, and third execution paths.


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