Status: New
Owner: ----
CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com,
igm...@gmail.com, llvm-b...@lists.llvm.org, v...@apple.com,
akils...@apple.com
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Unreproducible
Engine-libfuzzer Proj-llvm Reported-2018-01-03
Type: Bug
New issue 4908 by ClusterFuzz-External:
llvm/llvm-isel-fuzzer--aarch64-gisel: Null-dereference READ in
llvm::IRMutator::mutateModule
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4908
Detailed report: https://oss-fuzz.com/testcase?key=5853001831940096
Project: llvm
Fuzzer: libFuzzer_llvm_llvm-isel-fuzzer--aarch64-gisel
Fuzz target binary: llvm-isel-fuzzer--aarch64-gisel
Job Type: libfuzzer_asan_llvm
Platform Id: linux
Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
llvm::IRMutator::mutateModule
LLVMFuzzerCustomMutator
Sanitizer: address (ASAN)
Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=5853001831940096
Issue filed automatically.
See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for
more information.
Note: This crash might not be reproducible with the provided testcase. That
said, for the past 14 days we've been seeing this crash frequently. If you
are unable to reproduce this, please try a speculative fix based on the
crash stacktrace in the report. The fix can be verified by looking at the
crash statistics in the report, a day after the fix is deployed. We will
auto-close the bug if the crash is not seen for 14 days.
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.
* add any other useful information.
This information can help downstream consumers.
If you have questions for the OSS-Fuzz team, please file an issue at
https://github.com/google/oss-fuzz/issues.
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