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gh-140576: Fixed crash produced by lexer in case of dedented zero byte #140583

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gh-140576: Fixed crash produced by lexer in case of dedented zero byte #140583

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@efimov-mikhail efimov-mikhail commented Oct 25, 2025 •
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@bedevere-app bedevere-app bot mentioned this pull request Oct 25, 2025
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@efimov-mikhail efimov-mikhail added needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes labels Oct 25, 2025
picnixz
picnixz reviewed Oct 25, 2025
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@efimov-mikhail efimov-mikhail marked this pull request as draft October 25, 2025 18:55
@efimov-mikhail efimov-mikhail changed the title gh-140576: Fixed crash if error occured at tokenizeriter_next gh-140576: Fixed crash produced by lexer in case of dedented zero byte Oct 25, 2025
@efimov-mikhail efimov-mikhail marked this pull request as ready for review October 25, 2025 20:12
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I have to say that I'm in doubt about using PyErr_Occurred() at lexer.c.
I'll be grateful for a little guidance.

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