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perl-5.41.3
River stage five • 12010 direct dependents • 33600 total dependents
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/ make_patchnum.pl
Security Advisories (1)
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

NAME

make_patchnum.pl - make patchnum

SYNOPSIS

miniperl make_patchnum.pl

perl make_patchnum.pl

DESCRIPTION

This program creates the files holding the information about locally applied patches to the source code. The created files are git_version.h and lib/Config_git.pl.

lib/Config_git.pl

Contains status information from git in a form meant to be processed by the tied hash logic of Config.pm. It is actually optional, although -V:git.\* will be uninformative without it.

git_version.h contains similar information in a C header file format, designed to be used by patchlevel.h. This file is obtained from stock_git_version.h if miniperl is not available, and then later on replaced by the version created by this script.

AUTHOR

Yves Orton, Kenichi Ishigaki, Max Maischein

COPYRIGHT

Same terms as Perl itself.