Fix parsing a Unicode property name when compiling a regular expression

This commit is contained in:
Petr Písař 2019-09-02 09:29:30 +02:00
parent 6023832adf
commit 126a7ebead
2 changed files with 38 additions and 0 deletions

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@ -0,0 +1,31 @@
From 8d3e0237887e7149be56d17a9448cb465edc5f76 Mon Sep 17 00:00:00 2001
From: Karl Williamson <khw@cpan.org>
Date: Thu, 22 Aug 2019 10:16:14 -0600
Subject: [PATCH] regcomp.c: Fix wrong limit test
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Spotted by Hugo van der Sanden in code reading.
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
regcomp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/regcomp.c b/regcomp.c
index aba6648da5..d61fd434fe 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -23132,7 +23132,7 @@ Perl_parse_uniprop_string(pTHX_
/* If the original input began with 'In' or 'Is', it could be a subroutine
* call to a user-defined property instead of a Unicode property name. */
- if ( non_pkg_begin + name_len > 2
+ if ( name_len - non_pkg_begin > 2
&& name[non_pkg_begin+0] == 'I'
&& (name[non_pkg_begin+1] == 'n' || name[non_pkg_begin+1] == 's'))
{
--
2.21.0

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@ -263,6 +263,10 @@ Patch52: perl-5.31.2-perlapi-5.30-promise-not-met-change-to-5.32.patch
# Do not run File-Find tests in parallel, fixed after 5.31.2
Patch53: perl-5.31.2-Run-tests-in-ext-File-Find-t-in-series.patch
# Fix parsing a Unicode property name when compiling a regular expression,
# fixed after 5.31.3
Patch54: perl-5.31.3-regcomp.c-Fix-wrong-limit-test.patch
# Link XS modules to libperl.so with EU::CBuilder on Linux, bug #960048
Patch200: perl-5.16.3-Link-XS-modules-to-libperl.so-with-EU-CBuilder-on-Li.patch
@ -2838,6 +2842,7 @@ Perl extension for Version Objects
%patch51 -p1
%patch52 -p1
%patch53 -p1
%patch54 -p1
%patch200 -p1
%patch201 -p1
@ -2898,6 +2903,7 @@ perl -x patchlevel.h \
'Fedora Patch51: Fix parsing a denominator when parsing a Unicode property name' \
'Fedora Patch52: Fix a documentation about a future API change' \
'Fedora Patch53: Do not run File-Find tests in parallel' \
'Fedora Patch54: Fix parsing a Unicode property name when compiling a regular expression' \
'Fedora Patch200: Link XS modules to libperl.so with EU::CBuilder on Linux' \
'Fedora Patch201: Link XS modules to libperl.so with EU::MM on Linux' \
%{nil}
@ -5145,6 +5151,7 @@ popd
%changelog
* Mon Sep 02 2019 Petr Pisar <ppisar@redhat.com> - 4:5.30.0-445
- Adjust spec file to rpm-build-4.15.0-0.rc1.1
- Fix parsing a Unicode property name when compiling a regular expression
* Thu Aug 22 2019 Petr Pisar <ppisar@redhat.com> - 4:5.30.0-444
- Fix a NULL pointer dereference in PerlIOVia_pushed()