[llvm-bugs] Issue 20281 in oss-fuzz: llvm:clang-fuzzer: Stack-overflow in clang::DiagnosticIDs::isUnrecoverable

[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-2020-01-22
Type: Bug

New issue 20281 by ClusterFuzz-External: llvm:clang-fuzzer: Stack-overflow  
in clang::DiagnosticIDs::isUnrecoverable
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20281

Detailed Report: https://oss-fuzz.com/testcase?key=5748440663588864

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

Crash Type: Stack-overflow
Crash Address: 0x7fff3d7cbd58
Crash State:
   clang::DiagnosticIDs::isUnrecoverable
   clang::DiagnosticIDs::ProcessDiag
   clang::DiagnosticsEngine::EmitCurrentDiagnostic

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=202001200517:202001210521

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5748440663588864

Issue filed automatically.

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