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Issue 844197 link

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Issue metadata

Status: Verified
Owner:
Closed: Jul 10
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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FATAL:font_cache.cc(401)] Check failed: false

Project Member Reported by ClusterFuzz, May 17 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5096623001305088

Fuzzer: inferno_canvas_wrecker
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Null-dereference WRITE
Crash Address: 0x000000000000
Crash State:
  blink::WebClipboardImpl::WriteImageToClipboard
  blink::WebClipboardImpl::WriteImage
  blink::Pasteboard::WriteImage
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=554669:554670

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5096623001305088

Additional requirements: Requires Gestures

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 17 2018

Components: Blink 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.
Project Member

Comment 2 by ClusterFuzz, May 17 2018

Labels: Test-Predator-Auto-Owner
Owner: vabr@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/59d9af6de66ddcbb516fa02fc6c06d58cb26ec02 (Address comments in form parsing).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

Comment 3 by vabr@chromium.org, May 18 2018

Components: Blink>Fonts Blink>Layout
Labels: Test-Predator-Wrong-CLs
Owner: ----
Status: Untriaged (was: Assigned)
I am positive that this is not https://crrev.com/c/1032791.
Looking at the reported stack trace, I'm adding some relevant labels.
Components: -Blink -Platform

Comment 5 by e...@chromium.org, May 18 2018

Cc: e...@chromium.org
Components: -Blink>Layout
Owner: kojii@chromium.org
Status: Assigned (was: Untriaged)
Summary: FATAL:font_cache.cc(401)] Check failed: false (was: Null-dereference WRITE in blink::WebClipboardImpl::WriteImageToClipboard)
Looks like we got a reproducible clusterfuzz issue for a font crash, with luck this could help us track down the long open "no fallback" issue.
Project Member

Comment 6 by ClusterFuzz, Jul 10

ClusterFuzz has detected this issue as fixed in range 573498:573499.

Detailed report: https://clusterfuzz.com/testcase?key=5096623001305088

Fuzzer: inferno_canvas_wrecker
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Null-dereference WRITE
Crash Address: 0x000000000000
Crash State:
  blink::WebClipboardImpl::WriteImageToClipboard
  blink::WebClipboardImpl::WriteImage
  blink::Pasteboard::WriteImage
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=554669:554670
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=573498:573499

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5096623001305088

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.
Project Member

Comment 7 by ClusterFuzz, Jul 10

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5096623001305088 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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