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Issue metadata

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



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Integer-overflow in position_mark

Project Member Reported by ClusterFuzz, Feb 14 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6198448785981440

Fuzzer: libFuzzer_harfbuzz_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  position_mark
  position_around_base
  position_cluster
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=513517:513548

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6198448785981440

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Project Member

Comment 1 by ClusterFuzz, Feb 14 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.
Project Member

Comment 2 by ClusterFuzz, Feb 14 2018

Labels: Test-Predator-Auto-Owner
Owner: drott@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/d9338280305c81f3dac8aa1a3da3e459e3f341f9 (Roll HarfBuzz to 1.6.3).

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, Feb 22 2018

ClusterFuzz has detected this issue as fixed in range 538102:538114.

Detailed report: https://clusterfuzz.com/testcase?key=6198448785981440

Fuzzer: libFuzzer_harfbuzz_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  position_mark
  position_around_base
  position_cluster
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=513517:513548
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=538102:538114

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6198448785981440

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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, Feb 22 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6198448785981440 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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