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Issue 832053 link

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Issue metadata

Status: Duplicate
Merged: issue 827880
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Regression



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Null-dereference READ in blink::FontCache::CrashWithFontInfo

Project Member Reported by ClusterFuzz, Apr 12 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5077042899714048

Fuzzer: marty_html_twiddler
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::FontCache::CrashWithFontInfo
  blink::HarfBuzzShaper::ShapeSegment
  blink::HarfBuzzShaper::Shape
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=550035:550039

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5077042899714048

Additional requirements: Requires Gestures

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Apr 12 2018

Components: Platform
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.
Cc: brajkumar@chromium.org
Components: -Platform Blink>Fonts
Labels: -Type-Bug M-66 Test-Predator-Wrong Type-Bug-Regression
Owner: kojii@chromium.org
Status: Assigned (was: Untriaged)
By comparing the above stack trace it looks similar to  issue 827880 , hence assigning to the same dev for more updates on this issue.

kojii@ Could you please take a look in to this issue?

Thanks!

Comment 3 by kojii@chromium.org, Apr 16 2018

Mergedinto: 827880
Status: Duplicate (was: Assigned)
Thank you, yeah, this is likely a dup of  issue 827880 .

Similarly to  issue 812677 , I can't reproduce this locally, and the clusterfuzz tool still doesn't work for me, so hard to diagnose further.
Project Member

Comment 4 by ClusterFuzz, Apr 17 2018

ClusterFuzz has detected this issue as fixed in range 550885:550886.

Detailed report: https://clusterfuzz.com/testcase?key=5077042899714048

Fuzzer: marty_html_twiddler
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::FontCache::CrashWithFontInfo
  blink::HarfBuzzShaper::ShapeSegment
  blink::HarfBuzzShaper::Shape
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=550035:550039
Fixed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=550885:550886

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5077042899714048

Additional requirements: Requires Gestures

See https://github.com/google/clusterfuzz-tools 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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