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

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

A friendly reminder that M57 Beta launch is coming soon on February 2nd! Your bug is labelled as Beta ReleaseBlock, pls make sure to land the fix and get it merged into the release branch (2987) ASAP so it gets enough baking time in Dev (before Beta promotion). Thank you!

robhogan: here's another one that looks like it might be related to https://codereview.chromium.org/2329863002 (or maybe possibly a dupe of  issue 683104 ). Please take a look if you can. Thanks!

ClusterFuzz has detected this issue as fixed in range 446211:446229.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4533190279823360

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  blink::FloatingObject::unsafeClone
  blink::LayoutBlockFlow::moveAllChildrenIncludingFloatsTo
  blink::LayoutRubyBase::moveChildren
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_msan_chrome&range=444763:444813
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_msan_chrome&range=446211:446229

Minimized Testcase (1.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96tbXVx0rO-FxC7faCfIwWu_uXekUkn3b3Jnvxz2PagRU0Dm3ekBdYpyzNVnZZ94DDUZgD87f0TlsFs2625np0inx-gwMqQJcjqrWYxqci1tBeKbFGs1qR5qcfVsXk1jWt_H4PKXQYwvAb6f1qxHW8H2gHrKSJIeBNCsw9_8SP5MUfe8Dt4CMRpwCQKSz-y5-SVpNr6GMGC7wGFGlTmRIhS6bJHFiSq_1Zu4t53KD5gHoi1im4_wRgDLLoaBautWDfOxchYqnWSZ2MjecopD7T3sCJui_0WUJqEIb8F60soUFEdel3mL8hTosZ1Kjaz-hthYgjbfgbitgx8l1Kqh6EKCDNNfoSGh0Yahhok6upLc7IpJIw?testcase_id=4533190279823360

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 has detected this issue as fixed in range 446318:446618.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4533190279823360

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  blink::FloatingObject::unsafeClone
  blink::LayoutBlockFlow::moveAllChildrenIncludingFloatsTo
  blink::LayoutRubyBase::moveChildren
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_msan_chrome&range=444763:444813
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_msan_chrome&range=446318:446618

Minimized Testcase (1.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96tbXVx0rO-FxC7faCfIwWu_uXekUkn3b3Jnvxz2PagRU0Dm3ekBdYpyzNVnZZ94DDUZgD87f0TlsFs2625np0inx-gwMqQJcjqrWYxqci1tBeKbFGs1qR5qcfVsXk1jWt_H4PKXQYwvAb6f1qxHW8H2gHrKSJIeBNCsw9_8SP5MUfe8Dt4CMRpwCQKSz-y5-SVpNr6GMGC7wGFGlTmRIhS6bJHFiSq_1Zu4t53KD5gHoi1im4_wRgDLLoaBautWDfOxchYqnWSZ2MjecopD7T3sCJui_0WUJqEIb8F60soUFEdel3mL8hTosZ1Kjaz-hthYgjbfgbitgx8l1Kqh6EKCDNNfoSGh0Yahhok6upLc7IpJIw?testcase_id=4533190279823360

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.

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