[llvm-bugs] Issue 44938 in oss-fuzz: llvm:clang-fuzzer: Stack-overflow in clang::Sema::isTemplateName

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevl... at apple.com, igm... at gmail.com, davg at google.com, mitchp at google.com, bigch... at gmail.com, eneyman at google.com, llvm-... at lists.llvm.org, jfb at chromium.org, v... at apple.com, mitch... at outlook.com, xpl... at gmail.com, akils... at apple.com 
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer OS-Linux Proj-llvm Reported-2022-02-22
Type: Bug

New issue 44938 by ClusterFuzz-External: llvm:clang-fuzzer: Stack-overflow in clang::Sema::isTemplateName
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44938

Detailed Report: https://oss-fuzz.com/testcase?key=6463357090136064

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

Crash Type: Stack-overflow
Crash Address: 0x7ffd6752ae28
Crash State:
  clang::Sema::isTemplateName
  clang::Parser::ParseOptionalCXXScopeSpecifier
  clang::Parser::TryAnnotateCXXScopeToken
  
Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=202108040600:202201250612

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6463357090136064

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally.
When you fix this bug, please
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If you need to contact the OSS-Fuzz team with a question, concern, or any other feedback, please file an issue at https://github.com/google/oss-fuzz/issues. Comments on individual Monorail issues are not monitored.

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