Reject overlong forms and out-of-range code points in _Mbrtowc #5943
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Added UTF-8 validation in _Mbrtowc to reject overlong encodings and out-of-range code points, returning EILSEQ instead of accepting ill-formed sequences.
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Without a test case, it is unclear whether this is fixing a real bug, or if it's AI-written code that's not doing anything productive. |
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Closing due to no response, superseded by #6060, thanks @cpplearner! |
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Added UTF-8 validation in _Mbrtowc to reject overlong encodings and out-of-range code points, returning EILSEQ instead of accepting ill-formed sequences.