[llvm-bugs] Issue 5308 in oss-fuzz: llvm: Stack-overflow in llvm::StringMapImpl::LookupBucketFor

ClusterFuzz-External via monorail via llvm-bugs llvm-bugs at lists.llvm.org
Sun Jan 14 18:12:46 PST 2018


Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer Proj-llvm Reported-2018-01-15
Type: Bug

New issue 5308 by ClusterFuzz-External: llvm: Stack-overflow in  
llvm::StringMapImpl::LookupBucketFor
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5308

Detailed report: https://oss-fuzz.com/testcase?key=6129584899620864

Project: llvm
Fuzzer: libFuzzer_llvm_clang-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fffe9754aa8
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=201801110649:201801120612

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=6129584899620864

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
more information.

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 have questions for the OSS-Fuzz team, please file an issue at  
https://github.com/google/oss-fuzz/issues.

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