Affected: tensorflow

TensorFlow is an open source platform for machine learning. When `mlir::tfg::TFOp::nameAttr` receives null type list attributes, it crashes. We have patched the issue in GitHub commits 3a754740d5414e362512ee981eefba41561a63a6 and a0f0b9a21c9270930457095092f558fbad4c03e5. The fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, as these are also affected and still in supported range. There are no known workarounds for this issue.

Affected: PyPI: tensorflow, PyPI: tensorflow-cpu, PyPI: tensorflow-gpu

### Impact When [`mlir::tfg::TFOp::nameAttr`](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/core/ir/importexport/graphdef_import.cc) receives null type list attributes, it crashes. ```cpp

StatusOr<unsigned> GraphDefImporter::ArgNumType(const NamedAttrList &attrs, const OpDef::ArgDef &arg_def, SmallVectorImpl<Type> &types) { // Check whether a type list attribute is specified. if (!arg_def.type_list_attr().empty()) { if (auto v = attrs.get(arg_def.type_list_attr()).dyn_cast<ArrayAttr>()) { for (Attribute attr : v) { if (auto dtype = attr.dyn_cast<TypeAttr>()) { types.push_back(UnrankedTensorType::get(dtype.getValue())); } else { return InvalidArgument("Expected '", arg_def.type_list_attr(), "' to be a list of types"); } } return v.size(); } return NotFound("Type attr not found: ", arg_def.type_list_attr()); }

unsigned num = 1; // Check whether a number attribute is specified. if (!arg_def.number_attr().empty()) { if (auto v = attrs.get(arg_def.number_attr()).dyn_cast<IntegerAttr>()) { num = v.getValue().getZExtValue(); } else { return NotFound("Type attr not found: ", arg_def.number_attr()); } }

// Check for a type or type attribute. Type dtype; if (arg_def.type() != DataType::DT_INVALID) { TF_RETURN_IF_ERROR…