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[Bug gprof/29100] Buffer overflow when read function mapping file


From: yguoaz at gmail dot com
Subject: [Bug gprof/29100] Buffer overflow when read function mapping file
Date: Tue, 16 Aug 2022 11:53:44 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=29100

--- Comment #2 from yguoaz at gmail dot com ---
(In reply to Alan Modra from comment #1)
> The calculation would need to overflow a size_t, not an int.

Hi, sizeof(size_t) == sizeof(int) may hold in certain platforms (e.g., a 32 bit
machine). In that case, the overflow will happen and the size will wrap to a
small value.

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