Closed tyler92 closed 2 weeks ago
This patch fixes a stack overflow error for schemas with unresolvable ref. E.g. with the following test case:
ref
[ { "description": "invalid remote ref", "schema": {"$ref": "invalid"}, "tests": [ { "description": "remote ref invalid", "data": "a", "valid": false } ] } ]
Address sanitizer report:
AddressSanitizer:DEADLYSIGNAL ================================================================= ==1869218==ERROR: AddressSanitizer: stack-overflow on address 0x7fff0cca5f68 (pc 0x561dd7c16c0f bp 0x7fff0cca67b0 sp 0x7fff0cca5f70 T0) #0 0x561dd7c16c0f in __asan_memcpy (valijson/myfuzzing/prefix/bin/fuzzer+0x16ec0f) #1 0x561dd7d00fe3 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>* std::__uninitialized_copy<false>::__uninit_copy<__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>*>(__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, __gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>*) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/stl_uninitialized.h:137:33 #2 0x561dd7d00d69 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>* std::uninitialized_copy<__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>*>(__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, __gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>*) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/stl_uninitialized.h:184:14 #3 0x561dd7d0071a in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>* std::__uninitialized_copy_a<__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>*, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>(__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, __gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>*, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>&) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/stl_uninitialized.h:373:14 #4 0x561dd7d0d562 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>* std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>::_M_allocate_and_copy<__gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>>(unsigned long, __gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>, __gnu_cxx::__normal_iterator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const*, std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>>) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/stl_vector.h:1619:8 #5 0x561dd7d0c9ad in std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>::operator=(std::vector<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>> const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/vector.tcc:238:24 #6 0x561dd7d10259 in std::__detail::_Executor<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, std::__cxx11::regex_traits<char>, true>::_M_main_dispatch(std::__detail::_Executor<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, std::__cxx11::regex_traits<char>, true>::_Match_mode, std::integral_constant<bool, true>) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex_executor.tcc:86:22 #7 0x561dd7d10046 in std::__detail::_Executor<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, std::__cxx11::regex_traits<char>, true>::_M_main(std::__detail::_Executor<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, std::__cxx11::regex_traits<char>, true>::_Match_mode) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex_executor.h:150:16 #8 0x561dd7cf68d5 in std::__detail::_Executor<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, std::__cxx11::regex_traits<char>, true>::_M_match() /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex_executor.h:94:9 #9 0x561dd7cf488d in bool std::__detail::__regex_algo_impl<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, char, std::__cxx11::regex_traits<char>>(__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, __gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::__cxx11::match_results<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>&, std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char>> const&, std::regex_constants::match_flag_type, std::__detail::_RegexExecutorPolicy, bool) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex.tcc:80:25 #10 0x561dd7cf3c49 in bool std::regex_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>, char, std::__cxx11::regex_traits<char>>(__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, __gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::__cxx11::match_results<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>>>&, std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char>> const&, std::regex_constants::match_flag_type) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex.h:2268:14 #11 0x561dd7cf3606 in bool std::regex_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, char, std::__cxx11::regex_traits<char>>(__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, __gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char>> const&, std::regex_constants::match_flag_type) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex.h:2294:14 #12 0x561dd7c6c0e3 in bool std::regex_match<std::char_traits<char>, std::allocator<char>, char, std::__cxx11::regex_traits<char>>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char>> const&, std::regex_constants::match_flag_type) /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/regex.h:2399:14 #13 0x561dd7c6b92b in valijson::internal::uri::isUrn(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&) valijson/myfuzzing/cmake-build/../../include/valijson/internal/uri.hpp:31:10 #14 0x561dd7db3f4d in void valijson::SchemaParser::resolveThenPopulateSchema<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>(valijson::Schema&, valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>> const&, valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>> const&, valijson::Subschema const&, std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, valijson::SchemaParser::FunctionPtrs<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>::FetchDoc, valijson::Subschema const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const*, valijson::SchemaParser::DocumentCache<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>::Type&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>, valijson::Subschema const*, 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, valijson::Subschema const*>>>&) valijson/schema_parser.hpp:1021:75 #15 0x561dd7db48ff in void valijson::SchemaParser::resolveThenPopulateSchema<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>(valijson::Schema&, valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>> const&, valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>> const&, valijson::Subschema const&, std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, valijson::SchemaParser::FunctionPtrs<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>::FetchDoc, valijson::Subschema const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const*, valijson::SchemaParser::DocumentCache<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>::Type&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>, valijson::Subschema const*, 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, valijson::Subschema const*>>>&) valijson/schema_parser.hpp:1052:13 #16 0x561dd7db48ff in void valijson::SchemaParser::resolveThenPopulateSchema<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>(valijson::Schema&, valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>> const&, valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>> const&, valijson::Subschema const&, std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, valijson::SchemaParser::FunctionPtrs<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>::FetchDoc, valijson::Subschema const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const*, valijson::SchemaParser::DocumentCache<valijson::adapters::GenericRapidJsonAdapter<rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator>>>>::Type&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>, valijson::Subschema const*, 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, valijson::Subschema const*>>>&) valijson/schema_parser.hpp:1052:13 ... valijson::SchemaParser::resolveThenPopulateSchema ...
This patch fixes a stack overflow error for schemas with unresolvable
ref. E.g. with the following test case:Address sanitizer report: