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Issue metadata

Status: Duplicate
Merged: issue 786829
Owner: ----
Closed: Nov 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Data race in blink::RealtimeAnalyser::WriteInput

Project Member Reported by ClusterFuzz, Nov 28 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6394573382483968

Fuzzer: ochang_domfuzzer
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 4
Crash Address: 0x7b3c00001cb0
Crash State:
  blink::RealtimeAnalyser::WriteInput
  blink::AnalyserHandler::Process
  blink::AudioHandler::ProcessIfNecessary
  
Sanitizer: thread (TSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=473110:473113

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6394573382483968

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Nov 28 2017

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, Nov 28 2017

Mergedinto: 786829
Status: Duplicate (was: Untriaged)
It's a race on reading and writing write_index_, which is the same underlying cause as in  issue 786829 .
Project Member

Comment 3 by ClusterFuzz, Nov 29 2017

ClusterFuzz has detected this issue as fixed in range 519715:519769.

Detailed report: https://clusterfuzz.com/testcase?key=6394573382483968

Fuzzer: ochang_domfuzzer
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 4
Crash Address: 0x7b3c00001cb0
Crash State:
  blink::RealtimeAnalyser::WriteInput
  blink::AnalyserHandler::Process
  blink::AudioHandler::ProcessIfNecessary
  
Sanitizer: thread (TSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=473110:473113
Fixed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=519715:519769

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6394573382483968

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

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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