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perl-5.40.2
⭐ Starred 2013 / Test2::Manual::Tooling::Plugin::TestExit
Security Advisories (3)
CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

CVE-2026-4176 (2026-03-29)

Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.

CVE-2026-8376 (2026-05-25)

Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds. Perl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer. A caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time.

NAME

Test2::Manual::Tooling::Plugin::TestExit - How to safely add pre-exit behaviors.

DESCRIPTION

This describes the correct/safe way to add pre-exit behaviors to tests via a custom plugin.

The naive way to attempt this would be to add an END { ... } block. That can work, and may not cause problems.... On the other hand there are a lot of ways that can bite you. Describing all the potential problems of an END block, and how it might conflict with Test2 (Which has its own END block) is beyond the scope of this document.

COMPLETE CODE UP FRONT

package Test2::Plugin::MyPlugin;

use Test2::API qw{test2_add_callback_exit};

sub import {
    my $class = shift;

    test2_add_callback_exit(sub {
        my ($ctx, $orig_code, $new_exit_code_ref) = @_;

        return if $orig_code == 42;

        $$new_exit_code_ref = 42;
    });
}

1;

LINE BY LINE

use Test2::API qw{test2_add_callback_exit};

This imports the (test2_add_callback_exit) callback.

test2_add_callback_exit(sub { ... });

This adds our callback to be called before exiting.

my ($ctx, $orig_code, $new_exit_code_ref) = @_

The callback gets 3 arguments. First is a context object you may use. The second is the original exit code of the END block Test2 is using. The third argument is a scalar reference which you may use to get the current exit code, or set a new one.

return if $orig_code == 42

This is a short-cut to do nothing if the original exit code was already 42.

$$new_exit_code_ref = 42

This changes the exit code to 42.

SEE ALSO

Test2::Manual - Primary index of the manual.

SOURCE

The source code repository for Test2-Manual can be found at https://github.com/Test-More/Test2-Suite/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>

COPYRIGHT

Copyright 2018 Chad Granum <exodist@cpan.org>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/