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Prevent ints from wrapping around in scratch space functions

Authored by deadalnix on Mon, Sep 28, 15:44.


  • Add check preventing integer multiplication wrapping around in scratch_max_allocation
  • Add check preventing rounding to alignment from wrapping around in scratch_alloc
  • Use ROUND_TO_ALIGN in scratch_create
  • Don't assume that ALIGNMENT > 1 in tests

This is a backport of secp256k1 PR648

Test Plan
ninja check-secp256k1

Diff Detail

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This revision is now accepted and ready to land.Mon, Sep 28, 16:36