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Issue metadata

Status: Assigned
Owner:
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux , Chrome
Pri: 3
Type: Bug



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Timeout in mediasource_MP2T_AACLC_AVC_pipeline_integration_fuzzer

Project Member Reported by ClusterFuzz, Oct 28

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6209912812863488

Fuzzer: libFuzzer_mediasource_MP2T_AACLC_AVC_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  mediasource_MP2T_AACLC_AVC_pipeline_integration_fuzzer
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=539293:539310

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6209912812863488

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Cc: kkaluri@chromium.org
Labels: M-71 Test-Predator-Wrong CF-NeedsTriage
Unable to find the suspect through code search and also from the provided CL, hence adding appropriate label and leaving it as untriaged for further updates.

Thanks!
Labels: -CF-NeedsTriage
Owner: tguilbert@chromium.org
Status: Assigned (was: Untriaged)
tguilbert@, just wondering this change (https://chromium.googlesource.com/chromium/src/+/2f5083869dd554243dbaf08e06b59b9355dfbab0) is related from the above regression range?
Owner: chcunningham@chromium.org
The change in C#2 could not have caused this regression.

=> chcunningham@ as part of ffmpeg roll.
Cc: dalecur...@chromium.org wolenetz@chromium.org
Dale, Matt - I recall certain "timeout" fuzzer bugs are WAI, but I'm not familiar with the details. Does this fall into that group?
Labels: -Pri-1 Pri-3
Depends on the bug, you need to check if there's an easy way to avoid it by clamping to some sane value based on stream metadata.
Project Member

Comment 6 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 6209912812863488 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.
Project Member

Comment 8 by ClusterFuzz, Today (15 hours ago)

Labels: OS-Chrome

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