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https://github.com/SerenityOS/serenity
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AK: Correct ByteBuffer::{overwrite,slice*} bounds check
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7f1d3f6d62
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@ -94,9 +94,9 @@ private:
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Wrap,
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Adopt
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};
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explicit ByteBufferImpl(size_t); // For ConstructionMode=Uninitialized
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explicit ByteBufferImpl(size_t); // For ConstructionMode=Uninitialized
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ByteBufferImpl(const void*, size_t, ConstructionMode); // For ConstructionMode=Copy
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ByteBufferImpl(void*, size_t, ConstructionMode); // For ConstructionMode=Wrap/Adopt
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ByteBufferImpl(void*, size_t, ConstructionMode); // For ConstructionMode=Wrap/Adopt
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ByteBufferImpl() {}
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u8* m_data { nullptr };
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@ -183,10 +183,10 @@ public:
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{
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if (is_null())
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return {};
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if (offset >= this->size())
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return {};
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if (offset + size >= this->size())
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size = this->size() - offset;
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// I cannot hand you a slice I don't have
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ASSERT(offset + size <= this->size());
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return wrap(offset_pointer(offset), size);
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}
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@ -194,10 +194,10 @@ public:
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{
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if (is_null())
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return {};
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if (offset >= this->size())
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return {};
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if (offset + size >= this->size())
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size = this->size() - offset;
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// I cannot hand you a slice I don't have
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ASSERT(offset + size <= this->size());
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return copy(offset_pointer(offset), size);
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}
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@ -222,7 +222,7 @@ public:
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void overwrite(size_t offset, const void* data, size_t data_size)
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{
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// make sure we're not told to write past the end
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ASSERT(offset + data_size < size());
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ASSERT(offset + data_size <= size());
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__builtin_memcpy(this->data() + offset, data, data_size);
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}
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