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:
Jul. 25, 2023
Filed:
May. 12, 2020
Oracle International Corporation, Redwood Shores, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A taint report represents a taint flow from a source value at a source program point to a sink value at a sink program point. Candidate watchpoints that correspond to taint-like values similar to the source value may be inferred from an execution trace. Different subsets of candidate watchpoints represent solutions to the problem of determining an optimal subset of watchpoints contributing to a taint flow. Using a hill-climbing heuristic, incremental improvements are efficiently applied to a solution until no more improvements are found. An objective function may determine whether one solution improves another solution. The objective function may be based on validity, understandability, and performance. Validity favors candidate watchpoints that reduce the edit distance between the source and sink values. Understandability favors candidate watchpoints included in a call chain from the source program point to the sink program point. Performance favors small subsets of candidate watchpoints.