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document allocator state region

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Daniel Micay 2018-10-15 15:43:46 -04:00
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@ -184,6 +184,8 @@ was a bit less important and if a core goal was finding latent bugs.
* State within global variables is entirely read-only after initialization * State within global variables is entirely read-only after initialization
with pointers to the isolated allocator state so leaking the address of with pointers to the isolated allocator state so leaking the address of
the library doesn't leak the address of writable state the library doesn't leak the address of writable state
* [in-progress] Allocator state is located within a dedicated region with
high entropy randomly sized guard regions around it
* [in-progress] Protection via Memory Protection Keys (MPK) on x86\_64 * [in-progress] Protection via Memory Protection Keys (MPK) on x86\_64
* [implementing stronger state protection is in-progress] * [implementing stronger state protection is in-progress]
* Extension for retrieving the size of allocations with fallback * Extension for retrieving the size of allocations with fallback