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Issue 733145 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Sep 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference READ in blink::Document::ScheduleLayoutTreeUpdate

Project Member Reported by ClusterFuzz, Jun 14 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5902560757284864

Fuzzer: inferno_twister
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000000
Crash State:
  blink::Document::ScheduleLayoutTreeUpdate
  blink::Document::WillChangeFrameOwnerProperties
  blink::HTMLFrameOwnerElement::SetEmbeddedContentView
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=477423:477482

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5902560757284864


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Components: Blink>Layout

Comment 2 by e...@chromium.org, Aug 21 2017

Owner: shend@chromium.org
Status: Assigned (was: Untriaged)
shend: your SubtreeWillChangeContents change stands out in the regression range, any chance it might have caused this?

https://chromium-review.googlesource.com/525214

Comment 3 by shend@chromium.org, Aug 22 2017

Cc: shend@chromium.org
Owner: ----
Status: Available (was: Assigned)
Hmm I don't think so. As can be seen by the diff of generated code, we simply rename the getters and setters and move them to be public: https://gist.github.com/darrnshn/46ddf3dfedfbbc8a990e1c3acff6507d/revisions
Project Member

Comment 4 by ClusterFuzz, Sep 5 2017

Status: WontFix (was: Available)
ClusterFuzz testcase 5902560757284864 is flaky and no longer crashes, so closing issue.

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

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