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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible
Engine-libfuzzer OS-Linux Proj-llvm Security_Severity-High Reported-2024-05-02
Type: Bug-Security
New issue 68540 by ClusterFuzz-External: llvm:llvm-dwarfdump-fuzzer:
Heap-buffer-overflow in llvm::DWARFUnitIndex::parseImpl
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68540
Detailed Report: https://oss-fuzz.com/testcase?key=5965613558005760
Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-dwarfdump-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux
Crash Type: Heap-buffer-overflow WRITE 8
Crash Address: 0x603000000950
Crash State:
llvm::DWARFUnitIndex::parseImpl
llvm::DWARFUnitIndex::parse
ThreadUnsafeDWARFContextState::getCUIndex
Sanitizer: address (ASAN)
Recommended Security Severity: High
Regressed:
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=202011020601:202011030620
Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5965613558005760
Issue filed automatically.
See https://google.github.io/oss-fuzz/advanced-topics/reproducing for
instructions to reproduce this bug locally.
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