[llvm-bugs] Issue 16914 in oss-fuzz: llvm:clang-fuzzer: Stack-overflow in clang::Sema::GetTypeForDeclarator

[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-2019-09-02
Type: Bug

New issue 16914 by ClusterFuzz-External: llvm:clang-fuzzer: Stack-overflow  
in clang::Sema::GetTypeForDeclarator
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16914

Detailed Report: https://oss-fuzz.com/testcase?key=5631018840621056

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

Crash Type: Stack-overflow
Crash Address: 0x7ffce4d4fee8
Crash State:
   clang::Sema::GetTypeForDeclarator
   clang::Sema::ActOnBlockArguments
   clang::Parser::ParseBlockLiteralExpression

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=5631018840621056

Issue filed automatically.

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

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