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From: Anuraag Agrawal <>
Subject: [musl] Large overflow in __intscan ignored
Date: Fri, 1 Dec 2023 14:08:54 +0900	[thread overview]
Message-ID: <> (raw)

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Currently, __intscan, used by functions like strtol, does not seem to check
for overflow during multiplication.

It at the end checks against the limit, e.g. the size of a long

However, if the value overflows and ends up in the range of the limit,
errno will not be set. It seems that each multiplication operation needs to
be checking for overflow and return errno if it ever happens.

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             reply	other threads:[~2023-12-01  5:09 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-01  5:08 Anuraag Agrawal [this message]
2023-12-01  5:14 ` [musl] " Anuraag Agrawal
2023-12-01 15:52   ` Rich Felker
2023-12-01 16:21 ` [musl] " Markus Wichmann
2023-12-02  1:42   ` Anuraag Agrawal
2023-12-02  8:48     ` Markus Wichmann
2023-12-02 16:29       ` Rich Felker
2024-02-26  1:30         ` Rich Felker

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