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Issue metadata

Status: Verified
Owner:
Email to this user bounced
Closed: Jul 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in do_anti_hairline

Project Member Reported by ClusterFuzz, Jun 1 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5797942601711616

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  do_anti_hairline
  SkScan::AntiHairLineRgn
  void hair_path<
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=398502:398570

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5797942601711616


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: ranjitkan@chromium.org reed@google.com
Labels: M-61 Test-Predator-Correct-CLs
Owner: reed@chromium.org
Status: Assigned (was: Untriaged)
Assigning to the concern owner from Predator results --
The result is a list of CLs that change the crashed files.

Author: Mike Reed
Project: chromium-skia
Changelist: https://chromium.googlesource.com/skia.git/+/a1361364e64138adda3dc5f71d50d7503838bb6d
Time: Tue Mar 07 14:37:29 2017
The CL last changed line 233 of file SkBitmapDevice.cpp, which is stack frame 6.

@reed: Assigning to you, kindly take a look into it. Please help us to find an owner if not with respect to your change.

Thanks.!
Project Member

Comment 2 by ClusterFuzz, Jul 19 2017

ClusterFuzz has detected this issue as fixed in range 486753:487317.

Detailed report: https://clusterfuzz.com/testcase?key=5797942601711616

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  do_anti_hairline
  SkScan::AntiHairLineRgn
  void hair_path<
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=398502:398570
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=486753:487317

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5797942601711616


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 3 by ClusterFuzz, Jul 19 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5797942601711616 is verified as fixed, so closing issue.

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

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