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Issue 800649 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Jan 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Abrt in sk_abort_no_print

Project Member Reported by ClusterFuzz, Jan 10 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4765133841891328

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x03e9000074a7
Crash State:
  sk_abort_no_print
  SkPerlinNoiseShaderImpl::SkPerlinNoiseShaderImpl
  SkPerlinNoiseShaderImpl::SkPerlinNoiseShaderImpl
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=527439:527468

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4765133841891328

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jan 10 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, Jan 10 2018

Labels: Test-Predator-Auto-Owner
Owner: vmp...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/184aac3a818a10c142ad8bcccd1ac0bd7372b4c3 (oop: Serialize a few more PaintFilter.).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Comment 3 by vmp...@chromium.org, Jan 10 2018

Cc: enne@chromium.org
Labels: ClusterFuzz-Ignore
Status: WontFix (was: Assigned)
Skia asserts that num_octaves is in the range [0, 255]. However, there doesn't seem to be any security implications here. Skia also clamps the member variable to be <= 255, so the only real concern is negative values. It's only used to iterate from 0 to that value, so the loops will just be skipped.
Project Member

Comment 4 by ClusterFuzz, Jan 13 2018

ClusterFuzz has detected this issue as fixed in range 529162:529166.

Detailed report: https://clusterfuzz.com/testcase?key=4765133841891328

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x03e9000074a7
Crash State:
  sk_abort_no_print
  SkPerlinNoiseShaderImpl::SkPerlinNoiseShaderImpl
  SkPerlinNoiseShaderImpl::SkPerlinNoiseShaderImpl
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=527439:527468
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=529162:529166

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4765133841891328

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.

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