我如何抑制gcc中来自AddressSanitizer的堆栈缓冲区溢出 [英] How can I suppress a stack-buffer-overflow from AddressSanitizer in gcc

问题描述

我的应用程序正在使用 boost :: program_options ，它会触发AddressSanitizer stack-buffer-overflow，同时从异常中生成错误消息。

My app is using boost::program_options and it's triggering an AddressSanitizer "stack-buffer-overflow" while generating an error message from an exception.

我不担心增强错误-功能起作用，而这只是在非生产应用程序的命令行解析部分中。但是我想隐藏AddressSanitizer消息。

I'm not worried about the boost bug - the functionality works and this is just in the command line parsing portion of a non-production app. However I'd like to suppress the AddressSanitizer message.

ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fffe6ce7070 at pc 0x0000007406cd bp 0x7fffe6ce6fe0 sp 0x7fffe6ce6fd8
READ of size 8 at 0x7fffe6ce7070 thread T0
    #0 0x7406cc in std::_Head_base<0ul, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, false>::_M_head(std::_Head_base<0ul, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, false>&) /frc/toolchain6/include/c++/5.3.0/tuple:142
    #1 0x7406cc in _M_create_node /frc/toolchain6/include/c++/5.3.0/tuple:347
    #2 0x7403fd in std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >::_M_emplace_hint_unique<std::piecewise_construct_t const&, std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&>, std::tuple<> >(std::_Rb_tree_const_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, std::piecewise_construct_t const&, std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&>&&, std::tuple<>&&) /frc/toolchain6/include/c++/5.3.0/bits/stl_tree.h:2170
    #3 0xd5eff8 in boost::program_options::error_with_option_name::substitute_placeholders(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const (/home/joe/myapp_workspace/myapp/myapp-debug+0xd5eff8)
    #4 0xd5c0dd in boost::program_options::error_with_option_name::what() const (/home/joe/myapp_workspace/myapp/myapp-debug+0xd5c0dd)
    #5 0x58addf in main /home/joe/myapp_workspace/myapp/main.cpp:62
    #6 0x7fd7e056176c in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2176c)
    #7 0x436aa0  (/home/joe/myapp_workspace/myapp/myapp-debug+0x436aa0)

我尝试使用ASAN_OPTIONS抑制文件方法，但似乎仅支持错误类型的简短列表（例如 vptr_check和泄漏）。

I've tried using the ASAN_OPTIONS suppression file method but that only seems to support a very short list of error types (such as "vptr_check" and "leak").

推荐答案

我认为这不容易抑制此错误的方法-Casa版本的Asan具有黑名单机制，但是它对上下文不敏感，因此您必须在 std :: string 的所有用法中禁用内存检查

I don't think there's an easy way to suppress this error - Clang version of Asan has blacklisting mechanism but it's context insensitive so you'd have to disable memory checking in all usages of std::string which is highly undesirable.

一种选择是使用 -fsanitize-recover = address 编译器标志并添加 halt_on_error = 0 到您的 ASAN_OPTIONS 环境变量（请参阅 Wiki 了解详细信息，请注意，仅支持恢复ed是相对较新的GCC和Clang）。这将在第一个错误后继续执行。然后，您将可以查看完整的Asan报告并选择您感兴趣的地方。

One option is to use -fsanitize-recover=address compiler flag and add halt_on_error=0 to your ASAN_OPTIONS environment variable (see wiki for details and note that recovery is only supported is relatively new GCC and Clang). This will continue execution after first error. You'll then be able to examine full Asan report and select what interests you.

这篇关于我如何抑制gcc中来自AddressSanitizer的堆栈缓冲区溢出的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！