[llvm-bugs] Issue 17049 in oss-fuzz: llvm:llvm-itanium-demangle-fuzzer: ASSERT: Parser->TemplateParams.size() >= OldNumTemplateParamLists

[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-2019-09-07
Type: Bug

New issue 17049 by ClusterFuzz-External: llvm:llvm-itanium-demangle-fuzzer:  
ASSERT: Parser->TemplateParams.size() >= OldNumTemplateParamLists
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17049

Detailed Report: https://oss-fuzz.com/testcase?key=5085409259814912

Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-itanium-demangle-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   Parser->TemplateParams.size() >= OldNumTemplateParamLists
    
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=201909060434:201909070331

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5085409259814912

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for  
instructions to reproduce this bug locally.

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