[llvm-bugs] Issue 15752 in oss-fuzz: llvm/clang-fuzzer: Stack-overflow in clang::DiagnosticIDs::isUnrecoverable

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
igm... at gmail.com, mitchp at google.com, bigchees... at gmail.com,  
eneyman at google.com, llvm-b... at lists.llvm.org, jfb at chromium.org,  
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-07-12
Type: Bug

New issue 15752 by ClusterFuzz-External: llvm/clang-fuzzer: Stack-overflow  
in clang::DiagnosticIDs::isUnrecoverable
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15752

Detailed report: https://oss-fuzz.com/testcase?key=5642957929054208

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: 0x7ffe0c081bf8
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=201907080311:201907090313

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5642957929054208

Issue filed automatically.

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

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