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Issue metadata

Status: Verified
Owner:
Closed: Aug 16
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Crash in blink::HeapLinkedHashSet<blink::WeakMember<blink::SVGSMILElement>, WTF::MemberHa

Project Member Reported by ClusterFuzz, Aug 15

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5566451071844352

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x267bd7e743d0
Crash State:
  blink::HeapLinkedHashSet<blink::WeakMember<blink::SVGSMILElement>, WTF::MemberHa
  blink::SMILTimeContainer::UpdateAnimations
  blink::SMILTimeContainer::UpdateAnimationsAndScheduleFrameIfNeeded
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=583155:583156

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5566451071844352

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 15

Components: Blink>SVG Platform
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: keishi@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/bea6537a032fb89f8f3fd6ee839267f9963fddfe (Change SMILTimeContainer::scheduled_animations_ to use ephemeron).

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 sheriffbot@chromium.org, Aug 15

Labels: Target-70 M-70
Project Member

Comment 4 by sheriffbot@chromium.org, Aug 15

Labels: ReleaseBlock-Stable
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

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

Comment 5 by sheriffbot@chromium.org, Aug 15

Labels: Pri-1
Cc: pdr@chromium.org
Reverting in https://chromium-review.googlesource.com/c/chromium/src/+/1176401. This caused a dozen bugs with different stacks.
Project Member

Comment 7 by ClusterFuzz, Aug 16

ClusterFuzz has detected this issue as fixed in range 583246:583247.

Detailed report: https://clusterfuzz.com/testcase?key=5566451071844352

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x267bd7e743d0
Crash State:
  blink::HeapLinkedHashSet<blink::WeakMember<blink::SVGSMILElement>, WTF::MemberHa
  blink::SMILTimeContainer::UpdateAnimations
  blink::SMILTimeContainer::UpdateAnimationsAndScheduleFrameIfNeeded
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=583155:583156
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=583246:583247

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5566451071844352

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 8 by ClusterFuzz, Aug 16

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5566451071844352 is verified as fixed, so closing issue as verified.

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

Comment 9 by sheriffbot@chromium.org, Aug 16

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Labels: -ReleaseBlock-Stable
Project Member

Comment 11 by sheriffbot@chromium.org, Nov 22

Labels: -Restrict-View-SecurityNotify 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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