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[Bug regex/18040] use-after-free in regexec/get_subexp


https://sourceware.org/bugzilla/show_bug.cgi?id=18040

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |fweimer at redhat dot com

--- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
Is it possible to trigger this without REG_EXTENDED and a back reference?

(â\1â in an ERE makes behavior undefined according to POSIX.)

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