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Issue metadata

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



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Data race in extensions::ExtensionsGuestViewMessageFilter::~ExtensionsGuestViewMessageFilter

Project Member Reported by ClusterFuzz, Nov 19

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4660882346606592

Fuzzer: ochang_domfuzzer
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race READ 8
Crash Address: 0x555c93adf1b8
Crash State:
  extensions::ExtensionsGuestViewMessageFilter::~ExtensionsGuestViewMessageFilter
  void content::BrowserThread::DeleteOnThread<
  guest_view::GuestViewMessageFilter::OnDestruct
  
Sanitizer: thread (TSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4660882346606592

Issue filed automatically.

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

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. We will auto-close the bug if the crash is not seen for 14 days.
 
Project Member

Comment 1 by ClusterFuzz, Nov 19

Components: Internals>Core Platform>Apps>BrowserTag
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.
Owner: ekaramad@chromium.org
Cc: kkaluri@chromium.org
Labels: Test-Predator-Wrong
Status: Assigned (was: Untriaged)
Predator and CL could not provide any possible suspects.

Using Code Search for the file, "extensions_guest_view_message_filter.cc" suspecting the below Cl might have caused this issue

Suspect CL: https://chromium.googlesource.com/chromium/src/+/f8bcf5c5d88062c211335a677ab8969d481168f7

ekaramad@ -- Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thanks!
Yes there is a slight chance for race here. This part of code is undergoing some refactor and I will clean these issues up soon. Thanks.

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