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Issue 865450 link

Starred by 1 user
Status: Duplicate
Merged: issue 630435
Owner: ----
Closed: Jul 19
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Data race in blink::AudioBus::CopyFrom

Project Member Reported by ClusterFuzz, Jul 19 
Detailed report: https://clusterfuzz.com/testcase?key=4728157576626176

Fuzzer: inferno_twister
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 8
Crash Address: 0x7b9000020000
Crash State:
  blink::AudioBus::CopyFrom
  blink::ScriptProcessorHandler::Process
  blink::AudioHandler::ProcessIfNecessary
  
Sanitizer: thread (TSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=561126:561128

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4728157576626176

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
Project Member

Comment 1 by ClusterFuzz, Jul 19

Components: Blink>WebAudio
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Comment 2 by rtoy@chromium.org, Jul 19

Mergedinto: 630435
Status: Duplicate (was: Untriaged)
This is essentially the same as  issue 630435 .  The audio process for ScriptProcessorNode is concatenating data to an array which takes longer and longer so that eventually it can't keep up with the real-time constraint on the audio thread.
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