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Issue 775762 link

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Issue metadata

Status: Duplicate
Merged: issue 775922
Owner:
Not on Chrome anymore
Closed: Oct 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference READ in blink::StyleRule::ShouldConsiderForMatchingRules

Project Member Reported by ClusterFuzz, Oct 18 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5424998214008832

Fuzzer: inferno_layout_test_fuzzer
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000000
Crash State:
  blink::StyleRule::ShouldConsiderForMatchingRules
  blink::ElementRuleCollector::CollectMatchingRulesForList<blink::HeapTerminatedAr
  blink::ElementRuleCollector::CollectMatchingRules
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=509326:509389

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5424998214008832

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Cc: kkaluri@chromium.org
Components: Blink
Labels: Test-Predator-Wrong M-63
Owner: nainar@chromium.org
Status: Assigned (was: Untriaged)
Using the provided regression range assigning to the possible suspect as per the change made for the file, “StyleRule.cpp”

Suspecting Commit# https://chromium.googlesource.com/chromium/src/+/b30a67726d61312f337145310c81678c8e0ab20d

nainar@ -- Could you please look into this issue, kindly reassign if it has nothing to do with your changes.

Thanks.
Components: -Blink Blink>CSS

Comment 3 by nainar@chromium.org, Oct 18 2017

Mergedinto: 775922
Status: Duplicate (was: Assigned)
Project Member

Comment 4 by ClusterFuzz, Oct 19 2017

ClusterFuzz has detected this issue as fixed in range 509917:509960.

Detailed report: https://clusterfuzz.com/testcase?key=5424998214008832

Fuzzer: inferno_layout_test_fuzzer
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000000
Crash State:
  blink::StyleRule::ShouldConsiderForMatchingRules
  blink::ElementRuleCollector::CollectMatchingRulesForList<blink::HeapTerminatedAr
  blink::ElementRuleCollector::CollectMatchingRules
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=509326:509389
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=509917:509960

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5424998214008832

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.

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