Status: New
Owner: ----
CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com,
igm...@gmail.com, d...@google.com, mit...@google.com,
bigchees...@gmail.com, eney...@google.com, llvm-b...@lists.llvm.org,
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Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-11-15
Type: Bug
New issue 18955 by ClusterFuzz-External: llvm:clang-fuzzer:
Null-dereference READ in clang::TagType const*
clang::Type::castAs<clang::TagType>
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18955
Detailed Report: https://oss-fuzz.com/testcase?key=5759333988302848
Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: clang-fuzzer
Job Type: libfuzzer_msan_llvm
Platform Id: linux
Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
clang::TagType const* clang::Type::castAs<clang::TagType>
clang::Sema::LookupTemplateName
clang::Sema::isTemplateName
Sanitizer: memory (MSAN)
Regressed:
https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&range=201906300300:201910150335
Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=5759333988302848
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
* mention the fix revision(s).
* state whether the bug was a short-lived regression or an old bug in any
stable releases.
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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
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