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Fix signed integer overflow in memory stream seek #20922

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Fix signed integer overflow in memory stream seek #20922

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@arshidkv12 arshidkv12 commented Jan 13, 2026

@arshidkv12 arshidkv12 requested a review from bukka as a code owner January 13, 2026 11:37
@arshidkv12 arshidkv12 requested a review from Girgias as a code owner January 13, 2026 11:45
@devnexen devnexen requested a review from ndossche January 13, 2026 18:44
@devnexen devnexen linked an issue Jan 15, 2026 that may be closed by this pull request
UBSan: Negation of PHP_INT_MIN triggers runtime error in streams/memory.c via SplTempFileObject::fseek #20921
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UBSan: Negation of PHP_INT_MIN triggers runtime error in streams/memory.c via SplTempFileObject::fseek

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