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Merge pull request #189 from tevador/pr-set-cache

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Fix potential use-after-free when reallocating cache
This commit is contained in:
tevador
2020-06-27 20:42:15 +02:00
committed by GitHub
parent 7741eb1e97 32ab5dea54
commit 6a4afc721f
2 changed files with 4 additions and 1 deletions
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2
src/randomx.cpp
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@@ -329,7 +329,7 @@ extern "C" {
void randomx_vm_set_cache(randomx_vm *machine, randomx_cache* cache) {
assert(machine != nullptr);
assert(cache != nullptr && cache->isInitialized());
if (machine->cacheKey != cache->cacheKey) {
if (machine->cacheKey != cache->cacheKey || machine->getMemory() != cache->memory) {
machine->setCache(cache);
machine->cacheKey = cache->cacheKey;
}

3
src/virtual_machine.hpp
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@@ -54,6 +54,9 @@ public:
{
return program;
}
const uint8_t* getMemory() const {
return mem.memory;
}
protected:
void initialize();
alignas(64) randomx::Program program;