[llvm-bugs] Issue 16889 in oss-fuzz: llvm:clang-fuzzer: Stack-overflow in GetFullTypeForDeclarator

ClusterFuzz-External via monorail via llvm-bugs llvm-bugs at lists.llvm.org
Sat Aug 31 18:22:06 PDT 2019


Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-09-01
Type: Bug

New issue 16889 by ClusterFuzz-External: llvm:clang-fuzzer: Stack-overflow  
in GetFullTypeForDeclarator
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16889

Detailed Report: https://oss-fuzz.com/testcase?key=5090109182967808

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

Crash Type: Stack-overflow
Crash Address: 0x7ffd51d2eec8
Crash State:
   GetFullTypeForDeclarator
   clang::Sema::GetTypeForDeclarator
   clang::Sema::ActOnBlockArguments

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201908280324:201908290314

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5090109182967808

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for  
instructions to reproduce this bug locally.

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