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:
Jun. 03, 2014
Filed:
Aug. 31, 2012
Caroline Tice, Mountain View, CA (US);
Geoffrey Roeder Pike, San Francisco, CA (US);
Úlfar Erlingsson, Palo Alto, CA (US);
Lawrence Alan Crowl, Mountain View, CA (US);
Cary Allen Coutant, Saratoga, CA (US);
Xinliang David LI, Palo Alto, CA (US);
Sriraman Tallam, Sunnyvale, CA (US);
Kenneth Buchanan, Waterloo, CA;
Caroline Tice, Mountain View, CA (US);
Geoffrey Roeder Pike, San Francisco, CA (US);
Úlfar Erlingsson, Palo Alto, CA (US);
Lawrence Alan Crowl, Mountain View, CA (US);
Cary Allen Coutant, Saratoga, CA (US);
Xinliang David Li, Palo Alto, CA (US);
Sriraman Tallam, Sunnyvale, CA (US);
Kenneth Buchanan, Waterloo, CA;
Google Inc., Mountain View, CA (US);
Abstract
A system and method is disclosed for providing security in virtual function calling. During a build process a program code is analyzed to identify one or more call sites used to facilitate a call to a subroutine associated with a declared object type. One or more trusted vtable pointers to a respective subroutine is determined, and the program is configured, via the build process, to detect, at an execution time, an initiation of a virtual call at a call site, verify whether a vtable pointer used in connection with the call site is associated with at least one of the trusted vtable pointers, and, if verified, facilitate the virtual call using the call site. If the vtable pointer cannot be verified then the virtual call is aborted.