Fine-grained memory address space layout randomization
US11188638B2 · kind B2 · utility
1Cited by
16References
16Claims
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Key dates
| Filing date | May 10, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system can use a method of fine-grained address space layout randomization to mitigate the system's vulnerability to return oriented programming security exploits. The randomization can occur at the sub-segment level by randomizing clumps of virtual memory pages. The randomized virtual memory can be presented to processes executing on the system. The mapping between memory spaces can be obfuscated using several obfuscation techniques to prevent the reverse engineering of the shuffled virtual memory mapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.