CVE-2022-23558: Integer overflow in TFLite array creation

(updated )

An attacker can craft a TFLite model that would cause an integer overflow in TfLiteIntArrayCreate:

TfLiteIntArray* TfLiteIntArrayCreate(int size) {
int alloc_size = TfLiteIntArrayGetSizeInBytes(size);
// ...
TfLiteIntArray* ret = (TfLiteIntArray*)malloc(alloc_size);
// ...
}

The TfLiteIntArrayGetSizeInBytes returns an int instead of a size_t:

int TfLiteIntArrayGetSizeInBytes(int size) {
static TfLiteIntArray dummy;

int computed_size = sizeof(dummy) + sizeof(dummy.data[0]) * size;

References

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