BinExport assertion fail for register (unexpected child expression) #2528
Description
sample available on request
$ python scripts/inspect-binexport2.py tests/data/binexport2/sample.BinExport -d ─╯
DEBUG inspect-binexport2: perf: loading BinExport2: 0.10s inspect-binexport2.py:31
DEBUG inspect-binexport2: perf: indexing BinExport2: 1.56s inspect-binexport2.py:31
Traceback (most recent call last):
File "capa/scripts/inspect-binexport2.py", line 461, in <module>
sys.exit(main())
^^^^^^
File "capa/scripts/inspect-binexport2.py", line 369, in main
operands.append(render_operand(be2, operand, index=operand_index))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "capa/scripts/inspect-binexport2.py", line 210, in render_operand
_render_expression_tree(be2, operand, tree, 0, o)
File "capa/scripts/inspect-binexport2.py", line 162, in _render_expression_tree
raise NotImplementedError(len(children_tree_indexes))
NotImplementedError: 0when passing that exception:
Traceback (most recent call last):
File "capa/scripts/inspect-binexport2.py", line 462, in <module>
sys.exit(main())
^^^^^^
File "capa/scripts/inspect-binexport2.py", line 370, in main
operands.append(render_operand(be2, operand, index=operand_index))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "capa/scripts/inspect-binexport2.py", line 211, in render_operand
_render_expression_tree(be2, operand, tree, 0, o)
File "capa/scripts/inspect-binexport2.py", line 84, in _render_expression_tree
assert len(children_tree_indexes) == 0
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionErroron first triage I see a register with symbol z3 and child expression .
likely an issue in the BinExport plugin, which could be handled more gracefully here