New issue
Advanced search Search tips
Note: Color blocks (like █ or █) mean that a user may not be available. Tooltip shows the reason.

Issue 763656 link

Starred by 1 user
Status: Duplicate
Merged: issue 763654
Owner:
chrishtr@chromium.org
Closed: Sep 2017
Cc:
kkaluri@chromium.org
█ msrchandra@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference in blink::PaintLayerClipper::CalculateRects

Project Member Reported by ClusterFuzz, Sep 9 2017 
Detailed report: https://clusterfuzz.com/testcase?key=6245148072869888

Fuzzer: marty_html_twiddler
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000003
Crash State:
  blink::PaintLayerClipper::CalculateRects
  blink::PaintLayer::CollectFragmentsForPaint
  blink::PaintLayerPainter::PaintLayerContents
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=500791:500794

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6245148072869888

Issue filed automatically.

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

Comment 1 by kkaluri@chromium.org, Sep 11 2017

Cc: msrchandra@chromium.org kkaluri@chromium.org
Components: Infra>Git
Labels: Test-Predator-Wrong M-63
Owner: chrishtr@chromium.org
Status: Assigned (was: Untriaged)
Predator could not provide any possible suspects.
Assigning to the concern owner from CL --
https://chromium.googlesource.com/chromium/src/+log/d09b058a2fca054098e5bd14385516425766519b..bbcd0c20714b7722bc283cb0d3e62151b993e62e?pretty=fuller&n=10000

Suspecting Commit#
https://chromium.googlesource.com/chromium/src/+/c3a3481c4b1b08775b477144d1d2873a2a3d9900

chrishtr@ -- Could you please look into it issue, kindly re-assign if this not related your changes.
Thank You.

Comment 2 by chrishtr@chromium.org, Sep 11 2017

Mergedinto: 763654
Status: Duplicate (was: Assigned)
Project Member

Comment 3 by ClusterFuzz, Sep 12 2017 

ClusterFuzz has detected this issue as fixed in range 501139:501164.

Detailed report: https://clusterfuzz.com/testcase?key=6245148072869888

Fuzzer: marty_html_twiddler
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000003
Crash State:
  blink::PaintLayerClipper::CalculateRects
  blink::PaintLayer::CollectFragmentsForPaint
  blink::PaintLayerPainter::PaintLayerContents
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=500791:500794
Fixed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=501139:501164

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6245148072869888

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.
►

Sign in to add a comment