Dynamic execution prevention to inhibit return-oriented programming
US8776223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2012 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | May 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/54
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and/or system for execution prevention is provided. A state indicator for a first subset of a plurality of memory pages of executable code in a memory device is set to a non-executable state. A state indicator for a second subset of the plurality of memory pages is set to an executable state, where the second subset of the plurality of memory pages includes indirection stubs to functions in the first subset of the plurality of memory pages. Upon execution of an application, a function call is directed to a corresponding indirection stub in the second subset of the plurality of memory pages which modifies the state indicator for a corresponding function in the first subset of the plurality of memory pages prior to directing execution of the called function from the first subset of the plurality of memory pages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.