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Issue metadata

Status: Verified
Owner:
Closed: Jul 27
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug



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Null-dereference WRITE in blink::CSSAnimations::MaybeApplyPendingUpdate

Project Member Reported by ClusterFuzz, Jul 26

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6263763305758720

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference WRITE
Crash Address: 0x0000000000c8
Crash State:
  blink::CSSAnimations::MaybeApplyPendingUpdate
  blink::Element::StyleForLayoutObject
  blink::Element::RecalcOwnStyle
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=561422:561424

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6263763305758720

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jul 26

Components: Blink>Animation Blink>DOM
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.
Components: -Blink>DOM
Labels: Test-Predator-Wrong-Components
Cc: kkaluri@chromium.org
Labels: M-68 Test-Predator-Wrong
Owner: flackr@chromium.org
Status: Assigned (was: Untriaged)
Predator and CL could not provide any possible suspects.

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

Suspect CL: https://chromium.googlesource.com/chromium/src/+/6562517fa6e3a6d3a9690f36d3582e2fd23fa63a

flackr@ -- Could you please look into this issue.

Thanks!
Project Member

Comment 4 by ClusterFuzz, Jul 26

Labels: OS-Windows
Project Member

Comment 5 by ClusterFuzz, Jul 27

ClusterFuzz has detected this issue as fixed in range 578276:578278.

Detailed report: https://clusterfuzz.com/testcase?key=6263763305758720

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference WRITE
Crash Address: 0x0000000000c8
Crash State:
  blink::CSSAnimations::MaybeApplyPendingUpdate
  blink::Element::StyleForLayoutObject
  blink::Element::RecalcOwnStyle
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=561422:561424
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=578276:578278

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6263763305758720

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 6 by ClusterFuzz, Jul 27

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6263763305758720 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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