/ 
perl-5.45.1
⭐ Starred 2013 / Pod::Functions
Security Advisories (1)
CVE-2026-15534 (2026-08-09)

Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each participating WHILEM node, so the bit count is the subject length plus one times the number of nodes. Nothing checks that product for positive overflow of the signed 32-bit count: a 286331153 byte subject matched against a pattern with 15 participating nodes stores the count as 14, leaving a two byte cache. The cache is then indexed from the real match position and node number, so reads go past the end of the allocation, and on failure CACHEsayNO sets a bit past it. A caller that matches an attacker controlled subject of this size against a pattern of this shape can crash the process or corrupt heap memory.

NAME

Pod::Functions - Group Perl's functions a la perlfunc.pod

SYNOPSIS

use Pod::Functions;

my @misc_ops = @{ $Kinds{ 'Misc' } };
my $misc_dsc = $Type_Description{ 'Misc' };

or

perl /path/to/lib/Pod/Functions.pm

This will print a grouped list of Perl's functions, like the "Perl Functions by Category" in perlfunc section.

DESCRIPTION

It exports the following variables:

%Kinds

This holds a hash-of-lists. Each list contains the functions in the category the key denotes.

%Type

In this hash each key represents a function and the value is the category. The category can be a comma separated list.

%Flavor

In this hash each key represents a function and the value is a short description of that function.

%Type_Description

In this hash each key represents a category of functions and the value is a short description of that category.

@Type_Order

This list of categories is used to produce the same order as the "Perl Functions by Category" in perlfunc section.