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Issue metadata

Status: Verified
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



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Null-dereference READ in SkDiscardableMemory::Create

Project Member Reported by ClusterFuzz, Jan 16 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5402216944107520

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  SkDiscardableMemory::Create
  SkBitmapCache::Alloc
  SkSpecialImage_Gpu::onGetROPixels
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=527343:527370

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5402216944107520

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 16 2018

Labels: OS-Mac
Project Member

Comment 2 by ClusterFuzz, Jan 16 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.

Comment 3 by hcm@chromium.org, Apr 10 2018

Components: Internals>Compositing>Rasterization
Owner: khushals...@chromium.org

Comment 4 by hcm@chromium.org, Apr 10 2018

Components: -Internals>Skia
Status: Assigned (was: Untriaged)

Comment 6 by enne@chromium.org, Apr 13 2018

Cc: enne@chromium.org
Project Member

Comment 7 by ClusterFuzz, Apr 15 2018

ClusterFuzz has detected this issue as fixed in range 550790:550813.

Detailed report: https://clusterfuzz.com/testcase?key=5402216944107520

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  SkDiscardableMemory::Create
  SkBitmapCache::Alloc
  SkSpecialImage_Gpu::onGetROPixels
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=527343:527370
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=550790:550813

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5402216944107520

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 8 by ClusterFuzz, Apr 15 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5402216944107520 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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