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Issue metadata

Status: WontFix
Owner:
Closed: Jun 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference READ in blink::MediaElementEventQueue::EnqueueEvent

Project Member Reported by ClusterFuzz, Jun 7 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6621876462551040

Fuzzer: ifratric-browserfuzzer-v3
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::MediaElementEventQueue::EnqueueEvent
  blink::HTMLMediaElement::ScheduleEvent
  blink::HTMLMediaElement::InvokeLoadAlgorithm
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=564809:564810

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6621876462551040

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jun 7 2018

Components: Blink>DOM Blink>Media
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, Jun 7 2018

Labels: Test-Predator-Auto-Owner
Owner: hajimehoshi@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/c2a875c92ddd55d3ccdf1818ad685b57590a0565 (Make MediaElementEventQueue and EventQueueImpl inherit ContextLifecycleObserver).

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.
Status: WontFix (was: Assigned)
I think this was already fixed by https://chromium-review.googlesource.com/c/chromium/src/+/1088449.
Project Member

Comment 4 by ClusterFuzz, Jun 7 2018

ClusterFuzz has detected this issue as fixed in range 564857:564859.

Detailed report: https://clusterfuzz.com/testcase?key=6621876462551040

Fuzzer: ifratric-browserfuzzer-v3
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::MediaElementEventQueue::EnqueueEvent
  blink::HTMLMediaElement::ScheduleEvent
  blink::HTMLMediaElement::InvokeLoadAlgorithm
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=564809:564810
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=564857:564859

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6621876462551040

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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