[llvm-bugs] Issue 15538 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-irce: ASSERT: MaybeEntry.get().Kind == BitstreamEntry::SubBlock

[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 Reproducible Stability-Memory-MemorySanitizer  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-06-29
Type: Bug

New issue 15538 by ClusterFuzz-External: llvm/llvm-opt-fuzzer--x86_64-irce:  
ASSERT: MaybeEntry.get().Kind == BitstreamEntry::SubBlock
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15538

Detailed report: https://oss-fuzz.com/testcase?key=5634037315534848

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

Crash Type: ASSERT
Crash Address:
Crash State:
   MaybeEntry.get().Kind == BitstreamEntry::SubBlock
   jumpToValueSymbolTable
   BitcodeReader::parseValueSymbolTable

Sanitizer: memory (MSAN)

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5634037315534848

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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