[llvm-bugs] Issue 12439 in oss-fuzz: llvm/llvm-itanium-demangle-fuzzer: Stack-overflow in llvm::itanium_demangle::AbstractManglingParser<llvm::itanium_demangle::ManglingP

ClusterFuzz-External via monorail via llvm-bugs llvm-bugs at lists.llvm.org
Tue Jan 8 15:13:12 PST 2019


Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer Proj-llvm Reported-2019-01-08
Type: Bug

New issue 12439 by ClusterFuzz-External: llvm/llvm-itanium-demangle-fuzzer:  
Stack-overflow in  
llvm::itanium_demangle::AbstractManglingParser<llvm::itanium_demangle::ManglingP
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12439

Detailed report: https://oss-fuzz.com/testcase?key=5118124322455552

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

Crash Type: Stack-overflow
Crash Address: 0x7fffc8c34ff8
Crash State:
    
llvm::itanium_demangle::AbstractManglingParser<llvm::itanium_demangle::ManglingP
    
llvm::itanium_demangle::AbstractManglingParser<llvm::itanium_demangle::ManglingP
    
llvm::itanium_demangle::AbstractManglingParser<llvm::itanium_demangle::ManglingP

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=5118124322455552

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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