Cyber security for space-switching program calls
US11010479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system includes a memory system and a processing system operably coupled to the memory system. The memory system includes a plurality of address spaces. The processing system is configured to perform operations including creating a data space from within a primary address space and a primary address space number access list entry referencing the data space. An unauthorized caller routine in a home address space configured to issue a service request including an address space-switching program call from the home address space to a program call target routine in the primary address space. The address space-switching program call references the primary address space number access list entry in the primary address space. A vulnerability identifier associated with the program call target routine is created and logged based on one or more conditions indicative of a cross-memory integrity violation detected responsive to the service request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.