GNU bug report logs - #62983
workaround PCRE2 bug affecting at least \D and \W

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Package: grep;

Reported by: Carlo Marcelo Arenas Belón <carenas <at> gmail.com>

Date: Fri, 21 Apr 2023 02:05:01 UTC

Severity: normal

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Carlo Marcelo Arenas Belón <carenas <at> gmail.com>
To: bug-grep <at> gnu.org
Subject: workaround PCRE2 bug affecting at least \D and \W
Date: Thu, 20 Apr 2023 19:04:18 -0700

[Message part 1 (text/plain, inline)]
All versions of PCRE2 that include PCRE2_MATCH_INVALID_UTF had a bug on
its JIT implementation that results in failure to match for the negative
perl classes, and seems to be easier to replicate when the matching
character is a multibyte one.

Disable that flag and use the original fallback instead.

Alternatively JIT could be disabled instead, but the option selected has
less of an impact on performance.

Carlo

[0001-pcre-workaround-bug-affecting-W-or-D.patch (text/plain, attachment)]
This bug report was last modified 2 years and 46 days ago.

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