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Issue 670047 link

Starred by 1 user
Status: Verified
Owner:
reed@google.com
Closed: Oct 2017
Cc:
nyerramilli@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Regression



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Integer-overflow in compute_int_quad_dist

Project Member Reported by ClusterFuzz, Nov 30 2016 
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5814506468147200

Fuzzer: libfuzzer_skia_path_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_int_quad_dist
  compute_quad_level
  void hair_path<
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=415587:415619

Minimized Testcase (0.13 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94C0DdN06yUGQdWj0JydCWr-O3jc0Fs-Qzh01klT2KhDuyWQFJA87frUnXY43WjZQRHhRiiNDAPqvtNIKNhID8JEzF3V2dx5nHjEXyEnzNJKYZ-xIDVziTngeUU6_kSDEV3pl_y8qJXhaZ5TuBG1pYkRacPRg?testcase_id=5814506468147200

Issue filed automatically.

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

Comment 1 by mummare...@chromium.org, Dec 1 2016

Labels: Test-Predator-Wrong M-55

Comment 2 by nyerramilli@chromium.org, Feb 6 2017

Cc: nyerramilli@chromium.org
Components: Internals>Skia
Labels: -Type-Bug M-56 Type-Bug-Regression
Owner: bsalomon@chromium.org
Status: Assigned (was: Untriaged)
assigning to skia team, requesting to check the issue and help.

Comment 3 by bsalo...@google.com, Feb 6 2017

Owner: reed@google.com
Project Member

Comment 4 by ClusterFuzz, Jul 30 2017 

Detailed report: https://clusterfuzz.com/testcase?key=5246927448047616

Fuzzer: skia_path_fuzzer
Job Type: libfuzzer_chrome_ubsan
Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_int_quad_dist
  compute_quad_level
  void hair_path<
  
Sanitizer: undefined (UBSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5246927448047616


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

Comment 5 by ClusterFuzz, Jul 31 2017 

Detailed report: https://clusterfuzz.com/testcase?key=5246927448047616

Fuzzer: skia_path_fuzzer
Job Type: libfuzzer_chrome_ubsan
Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_int_quad_dist
  compute_quad_level
  void hair_path<
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=423338:423416

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5246927448047616


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

Comment 6 by ClusterFuzz, Oct 11 2017 

ClusterFuzz has detected this issue as fixed in range 507652:507664.

Detailed report: https://clusterfuzz.com/testcase?key=5246927448047616

Fuzzer: skia_path_fuzzer
Job Type: libfuzzer_chrome_ubsan
Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_int_quad_dist
  compute_quad_level
  void hair_path<
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=423338:423416
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=507652:507664

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5246927448047616

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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 7 by ClusterFuzz, Oct 11 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5246927448047616 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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