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Issue metadata

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



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Integer-overflow in XRect_roundOut

Project Member Reported by ClusterFuzz, Mar 1 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4532101651890176

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  XRect_roundOut
  SkScan::AntiFillXRect
  aa_square_proc
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=539885:539913

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4532101651890176

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 1 2018

Components: Internals>Skia
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, Mar 1 2018

Labels: Test-Predator-Auto-Owner
Owner: reed@google.com
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://skia.googlesource.com/skia/+/0a3b12bbcec77cb7007e0c3421a84affdc27a146 (keep points as floats until after clipping).

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, Mar 8 2018

ClusterFuzz has detected this issue as fixed in range 541609:541620.

Detailed report: https://clusterfuzz.com/testcase?key=4532101651890176

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  XRect_roundOut
  SkScan::AntiFillXRect
  aa_square_proc
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=539885:539913
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=541609:541620

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4532101651890176

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 4 by ClusterFuzz, Mar 8 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4532101651890176 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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