[llvm-bugs] Issue 60957 in oss-fuzz: llvm:clang-objc-fuzzer: ASSERT: Tok.is(tok::r_square) && "isCXX11AttributeSpecifier lied"

[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-2023-07-30
Type: Bug

New issue 60957 by ClusterFuzz-External: llvm:clang-objc-fuzzer: ASSERT: Tok.is(tok::r_square) && "isCXX11AttributeSpecifier lied"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60957

Detailed Report: https://oss-fuzz.com/testcase?key=6337667191930880

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

Crash Type: ASSERT
Crash Address: 
Crash State:
  Tok.is(tok::r_square) && "isCXX11AttributeSpecifier lied"
  clang::Parser::DiagnoseProhibitedCXX11Attribute
  clang::Parser::ParsePostfixExpressionSuffix
  
Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=202307200611:202307230617

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6337667191930880

Issue filed automatically.

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