[issue39689] test_struct failure on s390x Fedora Clang buildbot

[Ammar Askar]

Ammar Askar <ammar at ammaraskar.com> added the comment:

Nothing too interesting, here's the stack trace:

/src/cpython3/Modules/_struct.c:487:28: runtime error: load of value 32, which is not a valid value for type '_Bool'
    #0 0x7f50371a7670 in nu_bool cpython3/Modules/_struct.c:487:28
    #1 0x7f503719ea3d in s_unpack_internal cpython3/Modules/_struct.c:1512:21
    #2 0x7f5037199f7e in unpack cpython3/Modules/clinic/_struct.c.h:259:20
    #3 0xb8b8bc in cfunction_vectorcall_FASTCALL cpython3/Objects/methodobject.c:366:24
    #4 0x4fe113 in _PyObject_VectorcallTstate cpython3/./Include/cpython/abstract.h:111:21
    #5 0x4fe51f in object_vacall cpython3/Objects/call.c:789:14
    #6 0x4fe7d8 in PyObject_CallFunctionObjArgs cpython3/Objects/call.c:896:14
    #7 0x4d394e in fuzz_struct_unpack cpython3/Modules/_xxtestfuzz/fuzzer.c:121:26
    #8 0x4d394e in _run_fuzz cpython3/Modules/_xxtestfuzz/fuzzer.c:398:14
    #9 0x4d394e in LLVMFuzzerTestOneInput cpython3/Modules/_xxtestfuzz/fuzzer.c:453:11

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nosy: +ammar2

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<https://bugs.python.org/issue39689>
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