onnxruntime

00e9ef3d - Fix input validation and null-pointer dereference in STFTDecomposition graph transformer (#28465)

Fix input validation and null-pointer dereference in STFTDecomposition graph transformer (#28465) ### Description Validate that `frame_step` and `dft_size` (derived from `frame_length`) are positive before they are used in buffer sizing and loop arithmetic. Use SafeInt for the weight buffer allocation to guard against overflow. Also fix an unconditional dereference of `window_recipient` which is nullptr when the STFT node has no window input. ### Motivation and Context A model with non-positive initializer values for frame_length or frame_step causes signed-to-unsigned wrapping in size computations, leading to out-of-bounds writes during graph optimization. The nullptr dereference is a crash on any windowless STFT node. --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>