GHSA-6PWM-X34P-FVJ2 ONNX: Out-of-bounds read in ConvTranspose shape inference via undersized weight rank

Summary ONNX ConvTranspose shape inference performed an out-of-bounds read when the weight tensor had fewer than three dimensions and the model did not provide a kernelshape attribute. The inference function derived an empty effectivekernelshape vector from the undersized weight tensor, then...