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LibJS: Fix ASAN poisoning range in new HeapBlocks

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When poisoning HeapBlock::m_storage, we have to compute the storage size
by excluding the HeapBlock header.
This commit is contained in:
Andreas Kling 2021-09-11 16:58:23 +02:00
parent c364520c24
commit ca940d7240
1 changed files with 1 additions and 1 deletions
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2
Userland/Libraries/LibJS/Heap/HeapBlock.cpp
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@ -36,7 +36,7 @@ HeapBlock::HeapBlock(Heap& heap, size_t cell_size)
, m_cell_size(cell_size) , m_cell_size(cell_size)
{ {
VERIFY(cell_size >= sizeof(FreelistEntry)); VERIFY(cell_size >= sizeof(FreelistEntry));
ASAN_POISON_MEMORY_REGION(m_storage, block_size); ASAN_POISON_MEMORY_REGION(m_storage, block_size - sizeof(HeapBlock));
} }
void HeapBlock::deallocate(Cell* cell) void HeapBlock::deallocate(Cell* cell)