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Issue metadata

Status: Verified
Owner:
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Data race in v8::internal::String::MakeExternal

Project Member Reported by ClusterFuzz, May 26 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5209187798482944

Fuzzer: lcamtuf_cross_fuzz
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 8
Crash Address: 0x7ec218627410
Crash State:
  v8::internal::String::MakeExternal
  v8::String::MakeExternal
  blink::V8CSSStyleDeclaration::namedPropertyQueryCallback
  
Sanitizer: thread (TSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=546171:546176

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5209187798482944

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 26 2018

Components: Blink>Bindings Blink>JavaScript
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.
Project Member

Comment 2 by ClusterFuzz, May 26 2018

Labels: Test-Predator-Auto-Owner
Owner: pwnall@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/4d64ee24bf32970b88fcaa5ada38e59f016402ce (Remove dummy files created for rolling googletest.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Project Member

Comment 3 by ClusterFuzz, May 29 2018

ClusterFuzz has detected this issue as fixed in range 562265:562266.

Detailed report: https://clusterfuzz.com/testcase?key=5209187798482944

Fuzzer: lcamtuf_cross_fuzz
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 8
Crash Address: 0x7ec218627410
Crash State:
  v8::internal::String::MakeExternal
  v8::String::MakeExternal
  blink::V8CSSStyleDeclaration::namedPropertyQueryCallback
  
Sanitizer: thread (TSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=546171:546176
Fixed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=562265:562266

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5209187798482944

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.
Project Member

Comment 4 by ClusterFuzz, May 29 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5209187798482944 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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