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

awhalley@chromium.org,  please make sure that fix is ready and merged to M55 branch 2883 before 4:00 PM PT on Monday (10/24) as this is reported as M55 Beta blocker. Thank you.

This was caught by msan bots and fixed in https://codereview.chromium.org/2433373004/. I'm rerunning Clusterfuzz to be sure.

However, I'm not sure why Clusterfuzz marked this as M55, because the bug was introduced in https://chromium.googlesource.com/chromium/src/+/22b1cd4 which was well after branch point.

ClusterFuzz has detected this issue as fixed in range 426561:426648.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5693838410907648

Fuzzer: inferno_webbot
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  ChromeSecurityStateModelClient::GetSecurityStyle
  Browser::GetSecurityStyle
  content::WebContentsImpl::DidChangeVisibleSSLState
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_msan_chrome&range=426296:426375
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_msan_chrome&range=426561:426648

Minimized Testcase (0.06 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv942cyZNvMGXq4JZWdHKVkRxSsIkHA2HR8CCDnvZJurd6zWYPyfVHcDDW25zVGPiAkzWvZkTdVZ04Q-8goAbUWevPxoGQT7f2S4IYo6nUb7yeJB-tpGIK4bMvEwahf4ZGtAuMHF9vINNujvwknb6_1M74Ni0cg?testcase_id=5693838410907648
<script>
window.location = "http://xn--pckuas0o.com";</script>


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 is verified as fixed, closing issue.

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

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