[llvm-bugs] Issue 18516 in oss-fuzz: llvm:clang-fuzzer: Stack-overflow in llvm::StringMapImpl::LookupBucketFor

[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-2019-10-25
Type: Bug

New issue 18516 by ClusterFuzz-External: llvm:clang-fuzzer: Stack-overflow  
in llvm::StringMapImpl::LookupBucketFor
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18516

Detailed Report: https://oss-fuzz.com/testcase?key=5637794458501120

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

Crash Type: Stack-overflow
Crash Address: 0x7fffe3e1ece8
Crash State:
   llvm::StringMapImpl::LookupBucketFor
   std::__1::pair<llvm::StringMapIterator<clang::IdentifierInfo*>, bool>  
llvm::Stri
   clang::Preprocessor::LookUpIdentifierInfo

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201910220758:201910230338

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5637794458501120

Issue filed automatically.

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