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Issue metadata

Status: Verified
Owner: ----
Closed: Dec 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in rewind

Project Member Reported by ClusterFuzz, Dec 13 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4869581289291776

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  rewind
  merge_edges_above
  merge_collinear_edges
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=518504:518524

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4869581289291776

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 13 2017

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, Dec 13 2017

ClusterFuzz has detected this issue as fixed in range 523476:523511.

Detailed report: https://clusterfuzz.com/testcase?key=4869581289291776

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  rewind
  merge_edges_above
  merge_collinear_edges
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=518504:518524
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=523476:523511

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4869581289291776

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 3 by ClusterFuzz, Dec 13 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4869581289291776 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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