Status: New
Owner: ----
CC: [email protected], [email protected], [email protected],
[email protected], [email protected], [email protected],
[email protected], [email protected], [email protected],
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Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer
Engine-libfuzzer OS-Linux Proj-llvm Security_Severity-Medium
Reported-2019-10-14
Type: Bug-Security
New issue 18208 by ClusterFuzz-External:
llvm:llvm-opt-fuzzer--x86_64-loop_unroll: Use-of-uninitialized-value in
bool llvm::DenseMapBase<llvm::DenseMap<llvm::StringRef,
llvm::detail::DenseSetEm
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18208
Detailed Report: https://oss-fuzz.com/testcase?key=5077047453417472
Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-opt-fuzzer--x86_64-loop_unroll
Job Type: libfuzzer_msan_llvm
Platform Id: linux
Crash Type: Use-of-uninitialized-value
Crash Address:
Crash State:
bool llvm::DenseMapBase<llvm::DenseMap<llvm::StringRef,
llvm::detail::DenseSetEm
llvm::detail::DenseSetPair<llvm::StringRef>*
llvm::DenseMapBase<llvm::DenseMap<l
llvm::UniqueStringSaver::save
Sanitizer: memory (MSAN)
Recommended Security Severity: Medium
Crash Revision:
https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&revision=201906300300
Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=5077047453417472
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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This information can help downstream consumers.
If you need to contact the OSS-Fuzz team with a question, concern, or any
other feedback, please file an issue at
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