[llvm-bugs] Issue 26130 in oss-fuzz: llvm:clang-fuzzer: ASSERT: SS == getCurFunction()->SwitchStack.back().getPointer() && "switch stack missing

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
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Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer Engine-libfuzzer OS-Linux Proj-llvm Reported-2020-10-04
Type: Bug

New issue 26130 by ClusterFuzz-External: llvm:clang-fuzzer: ASSERT: SS == getCurFunction()->SwitchStack.back().getPointer() && "switch stack missing
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26130

Detailed Report: https://oss-fuzz.com/testcase?key=5188216376000512

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

Crash Type: ASSERT
Crash Address: 
Crash State:
  SS == getCurFunction()->SwitchStack.back().getPointer() && "switch stack missing
  clang::Sema::ActOnFinishSwitchStmt
  clang::Parser::ParseSwitchStatement
  
Sanitizer: memory (MSAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&range=202007280159:202007290306

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5188216376000512

Issue filed automatically.

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