Making C Less Dangerous

Making C Less Dangerous

Linux Foundation via YouTube Direct link

Intro

1 of 21

1 of 21

Intro

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Making C Less Dangerous

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  1. 1 Intro
  2. 2 Kernel Self Protection Project
  3. 3 C as a fancy assembler almost machine code
  4. 4 C as a fancy assembler: undefined behavior
  5. 5 Variable Length Arrays are bad
  6. 6 Variable Length Arrays are slow
  7. 7 Switch case fall-through did I mean it?
  8. 8 Switch case fall-through: new statement
  9. 9 Switch case fall-through new statement
  10. 10 Always-initialized local variables: just do it
  11. 11 Always-initialized local variables switch gotcha
  12. 12 Arithmetic overflow detection Clang :
  13. 13 Bounds checking: explicit checking is slow
  14. 14 Bounds checking memory tagging :
  15. 15 Control Flow Integrity: indirect calls
  16. 16 CFI, forward edges: enforce prototype :
  17. 17 CFI, backward edges: two stacks
  18. 18 CFI, backward edges: shadow call stack . Clang's Shadow Cal Stack
  19. 19 CFI, backward edges: hardware support
  20. 20 Where is the Linux kernel now?
  21. 21 Challenges in Kernel Security Development

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