llvm_libcxxabi: Negative-size-param in __cxxabiv1::NodeArray __cxxabiv1::Db::makeNodeArray<std::__1::__wrap_iter<__cxxa

Type ossfuzz
Reporter Google
Modified 2017-08-30T13:05:15


Project: https://github.com/llvm/llvm-project.git

Detailed report: https://oss-fuzz.com/testcase?key=4630402486501376

Project: llvm_libcxxabi Fuzzer: libFuzzer_llvm_libcxxabi_cxa_demangle_fuzzer Fuzz target binary: cxa_demangle_fuzzer Job Type: libfuzzer_asan_llvm_libcxxabi Platform Id: linux

Crash Type: Negative-size-param Crash Address: Crash State: __cxxabiv1::NodeArray __cxxabiv1::Db::makeNodeArray<std::__1::__wrap_iter<__cxxa __cxxabiv1::parse_conversion_expr __cxxabiv1::parse_expression

Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm_libcxxabi&range=201707270528:201707280529

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4630402486501376

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for more information.

This bug is subject to a 90 day disclosure deadline. If 90 days elapse without an upstream patch, then the bug report will automatically become visible to the public.

When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers.

If you have questions for the OSS-Fuzz team, please file an issue at https://github.com/google/oss-fuzz/issues.