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Issue metadata

Status: Verified
Owner:
Closed: Aug 31
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in position_cluster

Project Member Reported by ClusterFuzz, Jul 22

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6434580631126016

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  position_cluster
  hb_ot_position
  hb_ot_shape_internal
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=497420:497430

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6434580631126016

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jul 22

Components: Blink>Fonts
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, Jul 22

Labels: Test-Predator-Auto-Owner
Owner: kojii@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/85b84a4d900effddac4b32e7774d23f51fd562e0 (Fix mid-word-break to handle grapheme clusters).

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.
Cc: drott@chromium.org kojii@chromium.org
Owner: behdad@chromium.org
 Issue 856873  turned out to be flaky, but new one came in.

behdad@, would you mind to take a look?
Project Member

Comment 4 by ClusterFuzz, Aug 31

ClusterFuzz has detected this issue as fixed in range 587601:587602.

Detailed report: https://clusterfuzz.com/testcase?key=6434580631126016

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  position_cluster
  hb_ot_position
  hb_ot_shape_internal
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=497420:497430
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=587601:587602

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6434580631126016

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 5 by ClusterFuzz, Aug 31

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6434580631126016 is verified as fixed, so closing issue as verified.

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

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