[issue40958] ASAN/UBSAN: heap-buffer-overflow in pegen.c

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:

I theorize that this happens when the error points to the end of the line. I assume that the difference between col_offset and PyUnicode_GET_LENGTH(line) may be still bigger than 1 if the line contains some Unicode stuff like with:

>> "Ṕýţĥòñ" +

but I think that would be the same situation.

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<https://bugs.python.org/issue40958>
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