junov: Can you please take a look? Thanks.

This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

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This is a printing bug, not a canvas bug.
halcanary: please take a look.

Is this fixed with https://codereview.chromium.org/2509983004/ ?

I'll ask ClusterFuzz to rerun it.

reed's revert is r433136, and CF is testing at r433191. So we'll let it do its thing and report back.

halcanary: Uh oh! This issue still open and hasn't been updated in the last 14 days. This is a serious vulnerability, and we want to ensure that there's progress. Could you please leave an update with the current status and any potential blockers?

If you're not the right owner for this issue, could you please remove yourself as soon as possible or help us find the right one?

If the issue is fixed or you can't reproduce it, please close the bug. If you've started working on a fix, please set the status to Started.

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Any updates on this?  We're planning on shipping to Beta tomorrow on 12/8

Moving to ReleaseBlock-Stable so this still gets tracked in the milestone

ClusterFuzz has detected this issue as fixed in range 432588:432805.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6638571684626432

Fuzzer: ifratric_acrojs
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Heap-use-after-free READ 8
Crash Address: 0x621001650910
Crash State:
  SkCanvas::getDevice
  skia::GetMetaData
  printing::MetafileSkiaWrapper::GetMetafileFromCanvas
  
Recommended Security Severity: High

Regressed: https://cluster-fuzz.appspot.com/revisions?job=mac_asan_chrome&range=432464:432588
Fixed: https://cluster-fuzz.appspot.com/revisions?job=mac_asan_chrome&range=432588:432805

Minimized Testcase (876.46 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96vW-CX3LG0cIpdKok8nPT9uqDPZcn3Xf0wgxHpu38PAJwFYoQBvnpVLdxcdWWhMsWCBue-tRvPMV-EHrVZu5uG4nVORAfIpY4Zo6uTbHOLbmF9ZS3-aV-ySr4xvdNbC-hSRmcW598Dx4RMqoKLI7dcwn8sPnVJFwWQ3tEiALYCTcKvF2k?testcase_id=6638571684626432

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 6638571684626432 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

Your change meets the bar and is auto-approved for M56 (branch: 2924)

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

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Fixed in M56 per comment 16

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot