Windows 10 Segment Heap Internals

Windows 10 Segment Heap Internals

Black Hat via YouTube Direct link

LFH Allocation Randomization

23 of 27

23 of 27

LFH Allocation Randomization

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Windows 10 Segment Heap Internals

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  1. 1 Intro
  2. 2 Agenda: Windows 10 Segment Heap
  3. 3 Architecture
  4. 4 Configuration
  5. 5 Edge Content Process Heaps
  6. 6 Backend Page Range Descriptors Example
  7. 7 Backend Free Tree
  8. 8 Variable Size (VS) Allocation
  9. 9 VS Subsegment
  10. 10 VS Block Header
  11. 11 VS Free Tree
  12. 12 VS Allocation and Freeing
  13. 13 Low Fragmentation Heap (LFH)
  14. 14 LFH Buckets
  15. 15 LFH Affinity Slots
  16. 16 LFH Block Bitmap
  17. 17 LFH Allocation and Freeing
  18. 18 Internals: Summary
  19. 19 Heap Address Randomization
  20. 20 Guard Pages
  21. 21 Function Pointer Encoding
  22. 22 VS Block Sizes Encoding
  23. 23 LFH Allocation Randomization
  24. 24 WinRT PDF: PostScript Operand Stack
  25. 25 Free Blocks Coalescing
  26. 26 Case Study: Summary
  27. 27 Conclusion

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