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Issue metadata

Status: Available
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Out-of-memory in indexed_ruleset_fuzzer

Project Member Reported by ClusterFuzz, Jun 5 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4622390274031616

Fuzzer: libFuzzer_indexed_ruleset_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Out-of-memory (exceeds 2048 MB)
Crash Address: 
Crash State:
  indexed_ruleset_fuzzer
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=563201:563205

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4622390274031616

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Project Member

Comment 1 by ClusterFuzz, Jun 5 2018

Cc: csharrison@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Components: UI>Browser>AdFilter
Note: I think MSAN uses >= 2x the memory as a regular run (due to shadowing all memory allocations). This can be reproduced with a non-MSAN run with -rss_limit_mb=1024.
Cc: kkaluri@chromium.org
Labels: M-69 Test-Predator-Wrong CF-NeedsTriage
Unable to find actual suspect through code search and also observing no CL's under regression range, hence adding appropriate label and requesting someone from dev team to look in to this issue.

Thanks!
Labels: -Pri-1 Pri-2
Status: Available (was: Untriaged)
Marking available. I don't think this is super high priority but we should probably get to the bottom of it.
Labels: -M-69 -CF-NeedsTriage M-71
This seems to be OOM, however it is still happening on M71. Worth to take a look?
Still worth taking a look, just haven't had the time to look into it.
Project Member

Comment 7 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 4622390274031616 appears to be flaky, updating reproducibility label.
Labels: -Unreproducible Reproducible
Please ignore the last comment about testcase being unreproducible. The testcase is still reproducible. This happened due to a code refactoring on ClusterFuzz side, and the underlying root cause is now fixed. Resetting the label back to Reproducible. Sorry about the inconvenience caused from these incorrect notifications.
Please ignore the last comment about testcase being unreproducible. The testcase is still reproducible. This happened due to a code refactoring on ClusterFuzz side, and the underlying root cause is now fixed. Resetting the label back to Reproducible. Sorry about the inconvenience caused from these incorrect notifications.

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