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Issue metadata

Status: Verified
Owner: ----
Closed: Jun 2017
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug



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Null-dereference READ in blink::LayoutBlock::AddChildBeforeDescendant

Project Member Reported by ClusterFuzz, Jun 6 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4958791622983680

Fuzzer: bj_broddelwerk
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  blink::LayoutBlock::AddChildBeforeDescendant
  blink::LayoutBlockFlow::AddChild
  blink::LayoutTreeBuilderForText::CreateLayoutObject
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=477224:477239

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4958791622983680


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Project Member

Comment 1 by ClusterFuzz, Jun 7 2017

Labels: OS-Windows
Project Member

Comment 2 by ClusterFuzz, Jun 8 2017

ClusterFuzz has detected this issue as fixed in range 477533:477555.

Detailed report: https://clusterfuzz.com/testcase?key=4958791622983680

Fuzzer: bj_broddelwerk
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  blink::LayoutBlock::AddChildBeforeDescendant
  blink::LayoutBlockFlow::AddChild
  blink::LayoutTreeBuilderForText::CreateLayoutObject
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=477224:477239
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=477533:477555

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4958791622983680


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 3 by ClusterFuzz, Jun 8 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4958791622983680 is verified as fixed, so closing issue.

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

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