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[Bug libc/12518] memcpy acts randomly (and differently) with overlapping areas


http://sourceware.org/bugzilla/show_bug.cgi?id=12518

Oliver Henshaw <oliver.henshaw at gmail dot com> changed:

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--- Comment #12 from Oliver Henshaw <oliver.henshaw at gmail dot com> 2011-03-05 13:28:28 UTC ---
The thread starting at http://lwn.net/Articles/414496/ may be instructive on
how this can cause problems despite the good(-ish) intentions of the developer.
In short, squashfs used memcpy with data that was known not to overlap but
later changes invalidated this assumption.

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