[llvm-bugs] Issue 12432 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: QN->Components->Count >= 2

[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, eneyman at google.com, llvm-b... at lists.llvm.org,  
jfb at chromium.org, v... at apple.com, mitchphi... at outlook.com,  
xpl... at gmail.com, akils... at apple.com
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer Proj-llvm Reported-2019-01-08
Type: Bug

New issue 12432 by ClusterFuzz-External:  
llvm/llvm-microsoft-demangle-fuzzer: ASSERT: QN->Components->Count >= 2
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12432

Detailed report: https://oss-fuzz.com/testcase?key=5754723636871168

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-microsoft-demangle-fuzzer
Fuzz target binary: llvm-microsoft-demangle-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   QN->Components->Count >= 2
   llvm::ms_demangle::Demangler::parse
   llvm::microsoftDemangle

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201901070410:201901080410

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5754723636871168

Issue filed automatically.

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

When you fix this bug, please
   * mention the fix revision(s).
   * state whether the bug was a short-lived regression or an old bug in any  
stable releases.
   * add any other useful information.
This information can help downstream consumers.

If you need to contact the OSS-Fuzz team with a question, concern, or any  
other feedback, please file an issue at  
https://github.com/google/oss-fuzz/issues.

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