Status: New
Owner: ----
CC:,,,,,,,, Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer Proj-llvm Reported-2018-04-11
Type: Bug-Security

New issue 7560 by ClusterFuzz-External: llvm/llvm-opt-fuzzer--x86_64-loop_vectorize: Heap-use-after-free in llvm::LoopVectorizationCostModel::setCostBasedWideningDecision

Detailed report:

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-opt-fuzzer--x86_64-loop_vectorize
Fuzz target binary: llvm-opt-fuzzer--x86_64-loop_vectorize
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Heap-use-after-free READ 4
Crash Address: 0x6080000124e0
Crash State:

Sanitizer: address (ASAN)

Recommended Security Severity: High


Reproducer Testcase:

Issue filed automatically.

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