[llvm-bugs] Issue 25804 in oss-fuzz: llvm:clang-fuzzer: Stack-overflow in clang::StmtVisitorBase<llvm::make_const_ptr, FloatExprEvaluator, bool>::Visit

ClusterFuzz-External via monorail via llvm-bugs llvm-bugs at lists.llvm.org
Sat Sep 19 12:32:19 PDT 2020


Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer OS-Linux Proj-llvm Reported-2020-09-19
Type: Bug

New issue 25804 by ClusterFuzz-External: llvm:clang-fuzzer: Stack-overflow in clang::StmtVisitorBase<llvm::make_const_ptr, FloatExprEvaluator, bool>::Visit
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25804

Detailed Report: https://oss-fuzz.com/testcase?key=6282498190082048

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

Crash Type: Stack-overflow
Crash Address: 0x7ffe8b840e40
Crash State:
  clang::StmtVisitorBase<llvm::make_const_ptr, FloatExprEvaluator, bool>::Visit
  bool EvaluateComparisonBinaryOperator<IntExprEvaluator::VisitBinaryOperator
  IntExprEvaluator::VisitBinaryOperator
  
Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=202009170602:202009180613

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6282498190082048

Issue filed automatically.

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