[llvm-bugs] Issue 15520 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-licm: Abrt in llvm::Expected<llvm::Optional<llvm::BitstreamBlockInfo> >::fatalUncheckedExpecte

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-06-28
Type: Bug

New issue 15520 by ClusterFuzz-External: llvm/llvm-opt-fuzzer--x86_64-licm:  
Abrt in llvm::Expected<llvm::Optional<llvm::BitstreamBlockInfo>  
>::fatalUncheckedExpecte
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15520

Detailed report: https://oss-fuzz.com/testcase?key=5932328162951168

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-opt-fuzzer--x86_64-licm
Fuzz target binary: llvm-opt-fuzzer--x86_64-licm
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x000000000001
Crash State:
   llvm::Expected<llvm::Optional<llvm::BitstreamBlockInfo>  
>::fatalUncheckedExpecte
   llvm::Expected<llvm::Optional<llvm::BitstreamBlockInfo> >::~Expected
   BitcodeReaderBase::readBlockInfo

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201906260258:201906270304

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5932328162951168

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
instructions to reproduce this bug locally.

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