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Issue 813305 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in _hb_ot_shape_fallback_spaces

Project Member Reported by ClusterFuzz, Feb 17 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6044669881090048

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  _hb_ot_shape_fallback_spaces
  hb_ot_position_default
  hb_ot_position
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=390221:390292

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6044669881090048

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 17 2018

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.
Cc: brajkumar@chromium.org
Labels: M-65 Test-Predator-Wrong
Owner: behdad@chromium.org
Status: Assigned (was: Untriaged)
Unable to find actual suspect through code search nor from the provided regression range. observing similar  issue 657466  with same stack has marked as wont fix recently.
  	
behdad@ Could you please confirm is this issue is duplicate of  bug 657466 ?

Thanks!

Comment 3 by behdad@google.com, Feb 19 2018

Yes, looks the same to me.
Project Member

Comment 4 by ClusterFuzz, Feb 22 2018

ClusterFuzz has detected this issue as fixed in range 538102:538104.

Detailed report: https://clusterfuzz.com/testcase?key=6044669881090048

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  _hb_ot_shape_fallback_spaces
  hb_ot_position_default
  hb_ot_position
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=390221:390292
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=538102:538104

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6044669881090048

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, Feb 22 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6044669881090048 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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