[LLVMbugs] [Bug 21341] New: Segmentation fault in std::string on revision 217082

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21341

            Bug ID: 21341
           Summary: Segmentation fault in std::string on revision 217082
           Product: libc++
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: abyss.7 at gmail.com
                CC: llvmbugs at cs.uiuc.edu, mclow.lists at gmail.com
    Classification: Unclassified

The commit was found by git bisection. The commit message looks like:

Make the ASAN RAII object a nop when building w/o ASAN

I get a segfault in my app with a stacktrace:

SEGV on unknown address 0x000000000001 (pc 0x7fea212ac645 bp 0x7fffe545c840 sp
0x7fffe545c500 T0)
    #0 0x7fea212ac644 in
std::__1::remove_reference<std::__1::__compressed_pair<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >::__rep,
std::__1::allocator<char> >&>::type&&
std::__1::move<std::__1::__compressed_pair<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >::__rep,
std::__1::allocator<char>
>&>(std::__1::__compressed_pair<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >::__rep,
std::__1::allocator<char> >&&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/type_traits:1606:5
    #1 0x7fea212ac644 in std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>
>::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/string:2126
    #2 0x7fea212ac644 in std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>
>::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/string:2134
    #3 0x7fea212ac644 in void std::__1::allocator<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >
>::construct<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >
>(std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >*, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/memory:1645
    #4 0x7fea212ac644 in void
std::__1::allocator_traits<std::__1::allocator<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> > >
>::__construct<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >
>(std::__1::integral_constant<bool, true>,
std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> > >&, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >*,
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/memory:1572
    #5 0x7fea212ac644 in void
std::__1::allocator_traits<std::__1::allocator<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> > >
>::construct<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >
>(std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> > >&, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >*,
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/memory:1453
    #6 0x7fea212ac644 in std::__1::vector<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >,
std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> > > >::push_back(std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> >&&)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/libcxx/exported/include/vector:1613
    #7 0x7fea212ac644 in leveldb::(anonymous
namespace)::PosixEnv::GetChildren(std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> > const&,
std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> > > >*)
/home/user/Projects/test_project/out/Test.gn/../../src/third_party/leveldb/exported/util/env_posix.cc:366

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