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Issue 824064 link

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Issue metadata

Status: WontFix
Owner:
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in blink::WebFormElementObserverImpl::ObserverCallback::Deliver

Project Member Reported by ClusterFuzz, Mar 21 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5916588554059776

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::WebFormElementObserverImpl::ObserverCallback::Deliver
  blink::MutationObserver::Deliver
  blink::MutationObserver::DeliverMutations
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=540454:540455

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5916588554059776

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 21 2018

Components: Blink>DOM
Labels: Test-Predator-Auto-Components
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, Mar 21 2018

Labels: Test-Predator-Auto-Owner
Owner: michaelbai@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/8148326c1e81df720356a9eb7e40fe63b69fba52 (Get Select control change for autofill in browser side).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Project Member

Comment 3 by ClusterFuzz, Mar 23 2018

ClusterFuzz has detected this issue as fixed in range 545310:545315.

Detailed report: https://clusterfuzz.com/testcase?key=5916588554059776

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::WebFormElementObserverImpl::ObserverCallback::Deliver
  blink::MutationObserver::Deliver
  blink::MutationObserver::DeliverMutations
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=540454:540455
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=545310:545315

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5916588554059776

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 4 by ClusterFuzz, Mar 23 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5916588554059776 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Labels: ClusterFuzz-Wrong
Status: Assigned (was: Verified)
Labels: -ClusterFuzz-Wrong
Status: WontFix (was: Assigned)

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