Status: New
Owner: ----
CC: [email protected], [email protected], [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-2021-06-23
Type: Bug-Security
New issue 35508 by ClusterFuzz-External:
llvm:llvm-opt-fuzzer--x86_64-instcombine: 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=35508
Detailed Report: https://oss-fuzz.com/testcase?key=5155703497687040
Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-opt-fuzzer--x86_64-instcombine
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=202007250208
Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5155703497687040
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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