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Issue metadata

Status: Verified
Owner:
Closed: Oct 25
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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CHECK failure: written_bytes2 > 0u in paint_op_buffer_eq_fuzzer.cc

Project Member Reported by ClusterFuzz, Oct 25

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6570551328636928

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: windows_libfuzzer_chrome_asan
Platform Id: windows

Crash Type: CHECK failure
Crash Address: 
Crash State:
  written_bytes2 > 0u in paint_op_buffer_eq_fuzzer.cc
  __scrt_common_main_seh
  paint_op_buffer_eq_fuzzer.cc
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_libfuzzer_chrome_asan&range=602003:602021

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6570551328636928

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 25

Components: Internals>Compositing
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, Oct 25

Labels: Test-Predator-Auto-Owner
Owner: enne@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/13de7e3dc62741227c5c27a709251d1a13029491 (cc: Don't create a scaled shader for fixed scales).

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, Oct 25

ClusterFuzz has detected this issue as fixed in range 602543:602564.

Detailed report: https://clusterfuzz.com/testcase?key=6570551328636928

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: windows_libfuzzer_chrome_asan
Platform Id: windows

Crash Type: CHECK failure
Crash Address: 
Crash State:
  written_bytes2 > 0u in paint_op_buffer_eq_fuzzer.cc
  __scrt_common_main_seh
  paint_op_buffer_eq_fuzzer.cc
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_libfuzzer_chrome_asan&range=602003:602021
Fixed: https://clusterfuzz.com/revisions?job=windows_libfuzzer_chrome_asan&range=602543:602564

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6570551328636928

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, Oct 25

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6570551328636928 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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