Author: darin
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/fa18d502ca7285b4f9c5efad788e959c860ed9c6
Time: Fri Aug 12 19:49:27 2016
The CL last changed line 67 of file websocket_manager.cc, which is stack frame 4.

It looks like RenderProcessHost::FromID(process_id) is returning null in some cases, likely during shutdown.

ClusterFuzz has detected this issue as fixed in range 412760:412915.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4701187091988480

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000020
Crash State:
  base::SupportsUserData::GetUserData
  content::WebSocketManager::CreateWebSocket
  base::internal::Invoker<base::internal::BindState<void
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_lsan_chrome_mp&range=411529:411875
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_lsan_chrome_mp&range=412760:412915

Minimized Testcase (0.47 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95YZuQsZv_MnYKfp_19LpyEhDMlNvDPh4I71oBbPL95C6Cq5IDfbhQT4m7r1hrR7CPhmM5mTKARnzBOsbixeixWZTiUmZUUMwDHCIBgX0eJlP816w0k9-9Rsn1m2NlQM4vHfBAxqtB3JzfujYbcuXEqkTVD0w?testcase_id=4701187091988480

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.

Thanks to Ken for the fix:
https://chromium.googlesource.com/chromium/src/+/81dcc5ed8f118ef9838fc9e17486a7c080af8794

Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

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