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Issue metadata

Status: Duplicate
Merged: issue 835371
Owner:
Closed: Apr 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug-Security



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Heap-use-after-free in [thunk]:blink::LayoutBoxModelObject::`vcall'{944,{flat}}'

Project Member Reported by ClusterFuzz, Apr 19 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6048982523183104

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Heap-use-after-free READ 8
Crash Address: 0x1233bdea1a80
Crash State:
  [thunk]:blink::LayoutBoxModelObject::`vcall'{944,{flat}}'
  blink::LayoutBoxModelObject::MarginBefore
  blink::LayoutBlockFlow::YPositionForFloatIncludingMargin
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6048982523183104

Issue filed automatically.

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

Comment 1 by sheriffbot@chromium.org, Apr 19 2018

Labels: M-66
Project Member

Comment 2 by sheriffbot@chromium.org, Apr 19 2018

Labels: Pri-1

Comment 3 by vakh@chromium.org, Apr 20 2018

Components: Blink>Layout
Owner: wangxianzhu@chromium.org
Status: Assigned (was: Untriaged)
wangxianzhu: Can you please help triage this better? Thanks.
Mergedinto: 835371
Status: Duplicate (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, May 1 2018

ClusterFuzz has detected this issue as fixed in range 555009:555010.

Detailed report: https://clusterfuzz.com/testcase?key=6048982523183104

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Heap-use-after-free READ 8
Crash Address: 0x1233bdea1a80
Crash State:
  [thunk]:blink::LayoutBoxModelObject::`vcall'{944,{flat}}'
  blink::LayoutBoxModelObject::MarginBefore
  blink::LayoutBlockFlow::YPositionForFloatIncludingMargin
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=555009:555010

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6048982523183104

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 sheriffbot@chromium.org, Aug 7

Labels: -Restrict-View-SecurityTeam allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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