[llvm-bugs] Issue 54723 in oss-fuzz: llvm:clang-objc-fuzzer: ASSERT: isa<T>(CanonicalType)

[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-2023-01-01
Type: Bug

New issue 54723 by ClusterFuzz-External: llvm:clang-objc-fuzzer: ASSERT: isa<T>(CanonicalType)
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54723

Detailed Report: https://oss-fuzz.com/testcase?key=4822994059132928

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

Crash Type: ASSERT
Crash Address: 
Crash State:
  isa<T>(CanonicalType)
  clang::FunctionType const* clang::Type::castAs<clang::FunctionType>
  clang::CallExpr::getCallReturnType
  
Sanitizer: memory (MSAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&range=202011180625:202201250612

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4822994059132928

Issue filed automatically.

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