llvm:clang-fuzzer: Segv on unknown address in clang::LookupResult::sanity

2019-12-24T00:42:21
ID OSSFUZZ-19683
Type ossfuzz
Reporter Google
Modified 2020-03-16T18:51:32

Description

Detailed Report: https://oss-fuzz.com/testcase?key=4872329519955968

Project: llvm Fuzzing Engine: libFuzzer Fuzz Target: clang-fuzzer Job Type: libfuzzer_msan_llvm Platform Id: linux

Crash Type: Segv on unknown address Crash Address: Crash State: clang::LookupResult::sanity clang::Sema::HandleDeclarator clang::Sema::ActOnDeclarator

Sanitizer: memory (MSAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&range=201911200438:201911230451

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4872329519955968

Issue filed automatically.

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