[llvm-bugs] Issue 29182 in oss-fuzz: llvm:clang-fuzzer: ASSERT: RT->getDecl()->isUnion() && "RecordType is expected to be a union."

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
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Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer Engine-libfuzzer OS-Linux Proj-llvm Reported-2021-01-03
Type: Bug

New issue 29182 by ClusterFuzz-External: llvm:clang-fuzzer: ASSERT: RT->getDecl()->isUnion() && "RecordType is expected to be a union."
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29182

Detailed Report: https://oss-fuzz.com/testcase?key=5108635363573760

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

Crash Type: ASSERT
Crash Address: 
Crash State:
  RT->getDecl()->isUnion() && "RecordType is expected to be a union."
  ItaniumNumberingContext::getManglingNumber
  clang::Sema::BuildAnonymousStructOrUnion
  
Sanitizer: memory (MSAN)

Crash Revision: https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&revision=202011180625

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5108635363573760

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally.
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