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1.memleak

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increase used_block_count when use put_mem_block
2.assertion failed
Disallow repeating a case-change group
This commit is contained in:
zhangyiru 2021-10-14 15:41:58 -04:00
parent 26e2accfef
commit c8e96fd0cc
3 changed files with 81 additions and 1 deletions
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42
backport-Disallow-repeating-a-case-change-group.patch Normal file
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@ -0,0 +1,42 @@
From 370afe3f446c69a7ccc4c09f056272346afc264b Mon Sep 17 00:00:00 2001
From: zhangyiru <zhangyiru3@huawei.com>
Date: Thu, 14 Oct 2021 15:55:56 -0400
Subject: [PATCH] Disallow repeating a case-change group
fix assertion failed: https://github.com/boostorg/regex/issues/151
Signed-off-by: zhangyiru <zhangyiru3@huawei.com>
---
boost/regex/v4/basic_regex_parser.hpp | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/boost/regex/v4/basic_regex_parser.hpp b/boost/regex/v4/basic_regex_parser.hpp
index 6c7065f05..2ce615943 100644
--- a/boost/regex/v4/basic_regex_parser.hpp
+++ b/boost/regex/v4/basic_regex_parser.hpp
@@ -1042,6 +1042,7 @@ bool basic_regex_parser<charT, traits>::parse_repeat(std::size_t low, std::size_
case syntax_element_jump:
case syntax_element_startmark:
case syntax_element_backstep:
+ case syntax_element_toggle_case:
// can't legally repeat any of the above:
fail(regex_constants::error_badrepeat, m_position - m_base);
return false;
@@ -3116,7 +3117,13 @@ bool basic_regex_parser<charT, traits>::unwind_alts(std::ptrdiff_t last_paren_st
m_alt_jumps.pop_back();
this->m_pdata->m_data.align();
re_jump* jmp = static_cast<re_jump*>(this->getaddress(jump_offset));
- BOOST_ASSERT(jmp->type == syntax_element_jump);
+ if (jmp->type != syntax_element_jump)
+ {
+ // Something really bad happened, this used to be an assert,
+ // but we'll make it an error just in case we should ever get here.
+ fail(regex_constants::error_unknown, this->m_position - this->m_base, "Internal logic failed while compiling the expression, probably you added a repeat to something non-repeatable!");
+ return false;
+ }
jmp->alt.i = this->m_pdata->m_data.size() - jump_offset;
}
return true;
--
2.27.0

27
backport-increase_used_block_count_when_use_-put_mem_block.patch Normal file
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@ -0,0 +1,27 @@
From db3c106f1e80e67f9ed80ee276c5e080519290ad Mon Sep 17 00:00:00 2001
From: zhangyiru <zhangyiru3@huawei.com>
Date: Thu, 14 Oct 2021 15:39:19 -0400
Subject: [PATCH] increase used_block_count when use_ put_mem_block
fix memleak problem: https://github.com/boostorg/regex/issues/153
Signed-off-by: zhangyiru <zhangyiru3@huawei.com>
---
boost/regex/v4/perl_matcher_non_recursive.hpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/boost/regex/v4/perl_matcher_non_recursive.hpp b/boost/regex/v4/perl_matcher_non_recursive.hpp
index eb470a78d..54ce751da 100644
--- a/boost/regex/v4/perl_matcher_non_recursive.hpp
+++ b/boost/regex/v4/perl_matcher_non_recursive.hpp
@@ -1363,6 +1363,7 @@ bool perl_matcher<BidiIterator, Allocator, traits>::unwind_repeater_counter(bool
template <class BidiIterator, class Allocator, class traits>
bool perl_matcher<BidiIterator, Allocator, traits>::unwind_extra_block(bool)
{
+ ++used_block_count;
saved_extra_block* pmp = static_cast<saved_extra_block*>(m_backup_state);
void* condemmed = m_stack_base;
m_stack_base = pmp->base;
--
2.27.0

13
boost.spec
View File

@ -22,7 +22,7 @@
Name: boost
Version: 1.73.0
Release: 4
Release: 5
Summary: The free peer-reviewed portable C++ source libraries
License: Boost Software License V1.0
URL: http://www.boost.org
@ -45,6 +45,8 @@ Patch3: boost-1.58.0-pool-test_linking.patch
Patch4: boost-1.66.0-no-rpath.patch
Patch9000: regex-fix-dead-loop-in-parse_repeat.patch
Patch9001: backport-Disallow-repeating-a-case-change-group.patch
Patch9002: backport-increase_used_block_count_when_use_-put_mem_block.patch
Requires: %{name}-atomic%{?_isa} = %{version}-%{release}
Requires: %{name}-chrono%{?_isa} = %{version}-%{release}
@ -593,6 +595,8 @@ find ./boost -name '*.hpp' -perm /111 | xargs chmod a-x
%patch3 -p1
%patch4 -p1
%patch9000 -p1
%patch9001 -p1
%patch9002 -p1
%build
%if %{with python3}
@ -1139,6 +1143,13 @@ fi
%{_mandir}/man1/bjam.1*
%changelog
* Thu Oct 14 2021 zhangyiru <zhangyiru3@huawei.com> - 1.73.0-5
- Type:bugfix
- ID:NA
- SUG:NA
- DESC:increase used_block_count when use put_mem_block
Disallow repeating a case-change group
* Tue Jun 22 2021 Xu Huijie <xuhuijie2@huawei.com> - 1.73.0-4
- Type:bugfix
- ID:NA