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Issue 776363 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Not on Chrome anymore
Closed: Oct 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in blink::CSSLazyParsingState::GetStyleEngine

Project Member Reported by ClusterFuzz, Oct 19 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6514855157956608

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x0000000005c0
Crash State:
  blink::CSSLazyParsingState::GetStyleEngine
  blink::CSSLazyPropertyParserImpl::ParseProperties
  blink::StyleRule::Copy
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=509917:509960

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6514855157956608

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 19 2017

Components: Blink>CSS
Labels: Test-Predator-AutoComponents
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Oct 19 2017

Labels: Test-Predator-AutoOwner
Owner: nainar@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/c6dfaf800108be95ccd9c5c8cb73bed66e80ba1f (Revert "Only copy parsed properties over when mutating a rule.").

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Comment 3 by meade@chromium.org, Oct 20 2017

Labels: Update-Weekly
Project Member

Comment 4 by ClusterFuzz, Oct 24 2017

ClusterFuzz has detected this issue as fixed in range 510655:510724.

Detailed report: https://clusterfuzz.com/testcase?key=6514855157956608

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x0000000005c0
Crash State:
  blink::CSSLazyParsingState::GetStyleEngine
  blink::CSSLazyPropertyParserImpl::ParseProperties
  blink::StyleRule::Copy
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=509917:509960
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=510655:510724

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6514855157956608

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.

Comment 5 by nainar@chromium.org, Oct 24 2017

Status: Fixed (was: Assigned)
Project Member

Comment 6 by ClusterFuzz, Oct 26 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 6514855157956608 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components
Labels: -Test-Predator-AutoOwner Test-Predator-Auto-Owner

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