[llvm-bugs] Issue 35991 in oss-fuzz: llvm:llvm-opt-fuzzer--x86_64-loop_predication: Null-dereference READ in llvm::hashing::detail::hash_short

ClusterFuzz-External via monorail via llvm-bugs llvm-bugs at lists.llvm.org
Fri Jul 9 22:01:16 PDT 2021

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevl... at apple.com, igm... at gmail.com, davg at google.com, mitchp at google.com, bigch... at gmail.com, eneyman at google.com, llvm-... at lists.llvm.org, jfb at chromium.org, v... at apple.com, mitch... at outlook.com, xpl... at gmail.com, akils... at apple.com 
Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer Engine-libfuzzer OS-Linux Proj-llvm Reported-2021-07-10
Type: Bug

New issue 35991 by ClusterFuzz-External: llvm:llvm-opt-fuzzer--x86_64-loop_predication: Null-dereference READ in llvm::hashing::detail::hash_short

Detailed Report: https://oss-fuzz.com/testcase?key=5721861928386560

Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-opt-fuzzer--x86_64-loop_predication
Job Type: libfuzzer_msan_llvm
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  std::__1::enable_if<is_hashable_data<char const>::value, llvm::hash_code>::type 
  bool llvm::DenseMapBase<llvm::DenseMap<llvm::StringRef, llvm::detail::DenseSetEm
Sanitizer: memory (MSAN)

Crash Revision: https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&revision=202011180625

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5721861928386560

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.
  * add any other useful information.
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 https://github.com/google/oss-fuzz/issues. Comments on individual Monorail issues are not monitored.

You received this message because:
  1. You were specifically CC'd on the issue

You may adjust your notification preferences at:

Reply to this email to add a comment.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20210709/22a58d15/attachment-0001.html>

More information about the llvm-bugs mailing list