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Issue 874575 link

Starred by 1 user
Status: WontFix
Owner:
keishi@chromium.org
Closed: Aug 30
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Bad-cast to blink::GarbageCollectedMixinblink::ObjectAliveTrait<blink::LifecycleObserverBase, true>::IsHeapObjectAlive in blink::ThreadHeap::WeakProcessing

Project Member Reported by ClusterFuzz, Aug 15 
Detailed report: https://clusterfuzz.com/testcase?key=5581802123821056

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x0eb3274935f8
Crash State:
  Bad-cast to blink::GarbageCollectedMixinblink::ObjectAliveTrait<blink::LifecycleObserverBase, true>::IsHeapObjectAlive
  blink::ThreadHeap::WeakProcessing
  blink::ThreadState::MarkPhaseEpilogue
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=583229:583230

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5581802123821056

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 15

Components: Blink>MemoryAllocator>GarbageCollection
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, Aug 15

Labels: Test-Predator-Auto-Owner
Owner: peconn@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/19090f0be68c5209c25230f36d8f4cb0b1f790e2 (🤝 Hide toolbar when on verified origin.).

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.

Comment 3 by carlosil@chromium.org, Aug 15

Labels: M-70

Comment 4 by peconn@chromium.org, Aug 16

Labels: Test-Predator-Wrong-CLs
Owner: ----
My CL just changes the Java UI, it doesn't touch blink at all.
Project Member

Comment 5 by ClusterFuzz, Aug 16

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 5581802123821056 appears to be flaky, updating reproducibility label.
Project Member

Comment 6 by sheriffbot@chromium.org, Aug 16

Labels: Pri-1

Comment 7 by carlosil@chromium.org, Aug 16

Owner: haraken@chromium.org
haraken: Assigning to you since you are in the OWNERS file for this component, could you take a look? (and reassign if appropriate?). Thanks!

Comment 8 by haraken@chromium.org, Aug 17

Owner: keishi@chromium.org
Project Member

Comment 9 by ClusterFuzz, Aug 30

Status: WontFix (was: Assigned)
ClusterFuzz testcase 5581802123821056 is flaky and no longer crashes, so closing issue.

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

Comment 10 by sheriffbot@chromium.org, Dec 6

Labels: -Restrict-View-SecurityTeam allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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