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I created a random mangled name generator and have thrown about 200 million random strings at the demangler. I succeeded in crashing it twice more and those crashers have been fixed and the test suite updated with the crash cases.

Browse Source 
llvm-svn: 184562
This commit is contained in:
Howard Hinnant 2013-06-21 17:04:24 +00:00
parent e83cb0922b
commit 72a54eab35
2 changed files with 4 additions and 4 deletions
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6
libcxxabi/src/cxa_demangle.cpp
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@ -1022,8 +1022,6 @@ parse_base_unresolved_name(const char* first, const char* last, C& db)
db.names.back().first += std::move(args);
}
}
else
first = t;
}
else
{
@ -2071,7 +2069,7 @@ parse_type(const char* first, const char* last, C& db)
size_t k0 = db.names.size();
t = parse_type(first+2, last, db);
size_t k1 = db.names.size();
if (t != first+1)
if (t != first+2)
{
db.subs.emplace_back(db.names.get_allocator());
for (size_t k = k0; k < k1; ++k)
@ -3841,7 +3839,7 @@ parse_nested_name(const char* first, const char* last, C& db)
}
first = t0 + 1;
db.cv = cv;
if (pop_subs)
if (pop_subs && !db.subs.empty())
db.subs.pop_back();
}
return first;

2
libcxxabi/test/test_demangle.cpp
View File

@ -29591,6 +29591,8 @@ const char* invalid_cases[] =
{
"_ZIPPreEncode",
"Agentt",
"NSoERj5E=Y1[uM:ga",
"Aon_PmKVPDk7?fg4XP5smMUL6;<WsI_mgbf23cCgsHbT<l8EE\0uVRkNOoXDrgdA4[8IU>Vl<>IL8ayHpiVDDDXTY;^o9;i",
};
const unsigned NI = sizeof(invalid_cases) / sizeof(invalid_cases[0]);