[Bug 261554] textproc/mgdiff: crash when aiming to open a file

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 261554] textproc/mgdiff crash when aiming to open a file"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 08 Mar 2022 16:43:10 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261554

Fernando Apesteguía <fernape@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kevans@freebsd.org
             Status|New                         |Open

--- Comment #1 from Fernando Apesteguía <fernape@FreeBSD.org> ---
It looks to me like a crash in devel/libgnuregex.

In regex_internal.c:re_string_reconstruct pstr->trans is at a memory address
which is not accessible. This crashes later in
regex_internal.c:re_string_translate_buffer

I'm afraid I'm not familiar with the library as to pin-point where the problem
is.

Adding kevans@ to see if he can shed some light here.

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