[llvm-bugs] Issue 15885 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-licm: ASSERT: V && "Unexpected null Value"

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
igm... at gmail.com, mitchp at google.com, bigchees... at gmail.com,  
eneyman at google.com, llvm-b... at lists.llvm.org, jfb at chromium.org,  
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-07-15
Type: Bug

New issue 15885 by ClusterFuzz-External: llvm/llvm-opt-fuzzer--x86_64-licm:  
ASSERT: V && "Unexpected null Value"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15885

Detailed report: https://oss-fuzz.com/testcase?key=5743560961294336

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: ASSERT
Crash Address:
Crash State:
   V && "Unexpected null Value"
   llvm::ValueAsMetadata::get
   llvm::MetadataLoader::MetadataLoaderImpl::parseOneMetadata

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201907140313:201907150311

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5743560961294336

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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