This doesn't look like it runs in shipping code, right?

lukasza, assigning to you since you seem to own the topmost stack frame. :) Feel free to pass it on to someone more appropriate.

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

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

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

ClusterFuzz has detected this issue as fixed in range 504212:504265.

Detailed report: https://clusterfuzz.com/testcase?key=6096740209131520

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Stack-buffer-overflow READ 4
Crash Address: 0x0080ea18
Crash State:
  content::BlinkTestController::OnAllServiceWorkersCleared
  base::debug::TaskAnnotator::RunTask
  base::internal::IncomingTaskQueue::RunTask
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=503730:503731
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=504212:504265

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6096740209131520

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.

ClusterFuzz testcase 6096740209131520 is verified as fixed, so closing issue as verified.

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

Both regressed and fixed in M63, removing ReleaseBlock-Stable

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