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Issue metadata

Status: Verified
Owner: ----
Closed: Jan 16
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug



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Null-dereference READ in CGGlyphBitmapCreateWithPathAndDilation

Project Member Reported by ClusterFuzz, Jan 15

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5767442307219456

Fuzzer: ifratric-browserfuzzer-v3
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  CGGlyphBitmapCreateWithPathAndDilation
  CGFontCreateGlyphBitmapWithDilation
  CGGlyphBuilderLockBitmaps
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=602801:602807

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5767442307219456

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.
 
Project Member

Comment 1 by ClusterFuzz, Jan 15

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 16 (6 days ago)

ClusterFuzz has detected this issue as fixed in range 622845:622866.

Detailed report: https://clusterfuzz.com/testcase?key=5767442307219456

Fuzzer: ifratric-browserfuzzer-v3
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  CGGlyphBitmapCreateWithPathAndDilation
  CGFontCreateGlyphBitmapWithDilation
  CGGlyphBuilderLockBitmaps
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=602801:602807
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=622845:622866

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5767442307219456

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.

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, Jan 16 (6 days ago)

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 5767442307219456 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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