stack-overflow in src/ast_sel_cmp.cpp:349

[puppet-meteor]

Version: sassc-3.6.1-8-g3e73 libsass-3.6.3-57-g9515

OS: Ubuntu 16.04 LTS

POC: https://github.com/puppet-meteor/NLP_POC/blob/master/sassc/POC_13_000004

cmd: ./sassc POC

ASAN log:

================================================================= ==40794==ERROR: AddressSanitizer: stack-overflow on address 0x7fffff7fefc8 (pc 0x7ffff6ee1749 bp 0x7fffff7ff840 sp 0x7fffff7fefd0 T0) #0 0x7ffff6ee1748 in memcmp (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x77748) #1 0x720c59 in std::char_traits::compare(char const*, char const*, unsigned long) /usr/include/c++/5/bits/char_traits.h:262 #2 0x720c59 in __gnu_cxx::__enable_if<std::__is_char::__value, bool>::__type std::operator==(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) /usr/include/c++/5/bits/basic_string.h:4914 #3 0x720c59 in Sass::TypeSelector::operator==(Sass::TypeSelector const&) const src/ast_sel_cmp.cpp:349 #4 0x65fca5 in bool Sass::PtrObjEqualityFnSass::SimpleSelector(Sass::SimpleSelector const*, Sass::SimpleSelector const*) src/ast_helpers.hpp:127 #5 0x65fca5 in bool Sass::ObjEqualityFn<Sass::SharedImplSass::SimpleSelector >(Sass::SharedImplSass::SimpleSelector const&, Sass::SharedImplSass::SimpleSelector const&) src/ast_helpers.hpp:141 #6 0x65fca5 in bool Sass::ObjEquality::operator()<Sass::SharedImplSass::SimpleSelector >(Sass::SharedImplSass::SimpleSelector const&, Sass::SharedImplSass::SimpleSelector const&) const src/ast_helpers.hpp:148 #7 0x65fca5 in std::__detail::_Equal_helper<Sass::SharedImplSass::SimpleSelector, std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, std::__detail::_Select1st, Sass::ObjEquality, unsigned long, true>::_S_equals(Sass::ObjEquality const&, std::__detail::_Select1st const&, Sass::SharedImplSass::SimpleSelector const&, unsigned long, std::__detail::_Hash_node<std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, true>) /usr/include/c++/5/bits/hashtable_policy.h:1322 #8 0x65fca5 in std::__detail::_Hashtable_base<Sass::SharedImplSass::SimpleSelector, std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, std::__detail::_Select1st, Sass::ObjEquality, Sass::ObjHash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >::_M_equals(Sass::SharedImplSass::SimpleSelector const&, unsigned long, std::__detail::_Hash_node<std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, true>) const /usr/include/c++/5/bits/hashtable_policy.h:1704 #9 0x65fca5 in std::_Hashtable<Sass::SharedImplSass::SimpleSelector, std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, std::allocator<std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > > >, std::__detail::_Select1st, Sass::ObjEquality, Sass::ObjHash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_find_before_node(unsigned long, Sass::SharedImplSass::SimpleSelector const&, unsigned long) const /usr/include/c++/5/bits/hashtable.h:1433 #10 0x647a24 in std::_Hashtable<Sass::SharedImplSass::SimpleSelector, std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, std::allocator<std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > > >, std::__detail::_Select1st, Sass::ObjEquality, Sass::ObjHash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_find_node(unsigned long, Sass::SharedImplSass::SimpleSelector const&, unsigned long) const /usr/include/c++/5/bits/hashtable.h:632 #11 0x647a24 in std::__detail::_Map_base<Sass::SharedImplSass::SimpleSelector, std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > >, std::allocator<std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > > >, std::__detail::_Select1st, Sass::ObjEquality, Sass::ObjHash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>::operator /usr/include/c++/5/bits/hashtable_policy.h:618 #12 0x647a24 in std::unordered_map<Sass::SharedImplSass::SimpleSelector, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > >, Sass::ObjHash, Sass::ObjEquality, std::allocator<std::pair<Sass::SharedImplSass::SimpleSelector const, std::unordered_set<Sass::SharedImplSass::SelectorList, Sass::ObjPtrHash, Sass::ObjPtrEquality, std::allocator<Sass::SharedImplSass::SelectorList > > > > >::operator /usr/include/c++/5/bits/unordered_map.h:672 #13 0x647a24 in Sass::Extender::registerSelector(Sass::SharedImplSass::SelectorList const&, Sass::SharedImplSass::SelectorList const&) src/extender.cpp:215 #14 0x64811e in Sass::Extender::registerSelector(Sass::SharedImplSass::SelectorList const&, Sass::SharedImplSass::SelectorList const&) src/extender.cpp:219 #15 0x64811e in Sass::Extender::registerSelector(Sass::SharedImplSass::SelectorList const&, Sass::SharedImplSass::SelectorList const&) src/extender.cpp:219 ................................................... SUMMARY: AddressSanitizer: stack-overflow ??:0 memcmp ==40794==ABORTING