[llvm-bugs] Issue 12903 in oss-fuzz: llvm/clang-fuzzer: Stack-overflow in llvm::StringMapImpl::LookupBucketFor

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #2 on issue 12903 by ClusterFuzz-External: llvm/clang-fuzzer:  
Stack-overflow in llvm::StringMapImpl::LookupBucketFor
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12903#c2

ClusterFuzz has detected this issue as fixed in range  
201902100421:201902110421.

Detailed report: https://oss-fuzz.com/testcase?key=5769629396369408

Project: llvm
Fuzzer: libFuzzer_llvm_clang-fuzzer
Fuzz target binary: clang-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7ffc93df6f28
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=201902030422:201902040424
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201902100421:201902110421

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5769629396369408

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

If you suspect that the result above is incorrect, try re-doing that job on  
the test case report page.

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