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Issue metadata

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



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Null-dereference READ in blink::Node::UpdateDistribution

Project Member Reported by ClusterFuzz, Jun 20 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6195960475811840

Fuzzer: attekett_dom_fuzzer
Job Type: linux_asan_chrome_v8_arm
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x00000009
Crash State:
  blink::Node::UpdateDistribution
  blink::ComparePositions
  blink::PositionTemplate<blink::EditingAlgorithm<blink::FlatTreeTraversal> >::ope
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=480591:480658

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6195960475811840


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 20 2017

Labels: OS-Android
Project Member

Comment 2 by ClusterFuzz, Jun 21 2017

Labels: OS-Mac
Project Member

Comment 3 by ClusterFuzz, Jun 22 2017

ClusterFuzz has detected this issue as fixed in range 481254:481414.

Detailed report: https://clusterfuzz.com/testcase?key=6195960475811840

Fuzzer: attekett_dom_fuzzer
Job Type: linux_asan_chrome_v8_arm
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x00000009
Crash State:
  blink::Node::UpdateDistribution
  blink::ComparePositions
  blink::PositionTemplate<blink::EditingAlgorithm<blink::FlatTreeTraversal> >::ope
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=480591:480658
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=481254:481414

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6195960475811840


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 4 by ClusterFuzz, Jun 22 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6195960475811840 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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