Providing Findit results for internal purpose:
Suspected CLs	No CL in the regression range changes the crashed files. The result is the blame information.

Author: dtapuska@chromium.org
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/326ce2568b705fee2fbdc5e60616718ea548dfc1
Time: Thu Jul 16 01:55:02 2015
The CL last changed line 429 of file EventTarget.cpp, which is stack frame 0.

Author: abhishek.a21@samsung.com
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/ca35ef0b1ae9922047503360a19c3c7fe057d462
Time: Thu Jul 31 11:46:49 2014
The CL last changed line 272 of file mock_web_speech_recognizer.cc, which is stack frame 1.

Author: tzik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/99de02ba952b0a69291f81c5b8ca14d81cc1f74f
Time: Fri Jul 01 05:54:12 2016
The CL last changed line 164 of file bind_internal.h, which is stack frame 2.

Author: tzik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/99de02ba952b0a69291f81c5b8ca14d81cc1f74f
Time: Fri Jul 01 05:54:12 2016
The CL last changed line 283 of file bind_internal.h, which is stack frame 3.

Author: tzik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/ee2487294417a82adfc854aa680c7765eef7494e
Time: Wed Jun 01 08:22:51 2016
The CL last changed line 346 of file bind_internal.h, which is stack frame 4.

Author: tzik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/99de02ba952b0a69291f81c5b8ca14d81cc1f74f
Time: Fri Jul 01 05:54:12 2016
The CL last changed line 324 of file bind_internal.h, which is stack frame 5.

Author: tzik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/77d41139d261342a429d2775c59d8e8a386d4c81
Time: Wed Mar 09 09:47:03 2016
The CL last changed line 389 of file callback.h, which is stack frame 6.

Suspected Project: chromium
Suspected Component: Blink>DOM

using codesearch, seeing some changes to EventTarget.cpp in
https://chromium.googlesource.com/chromium/src/+/d6f91db2f44e1d429f625b61e8f41016cac0c3a1

mustaq@, Could you please check the above issue & help us in finding an owner it its not yours.

Seems like a bug in mock_web_speech_recognizer.cc. The stack trace shows that MockWebSpeechRecognizer::RunTaskFromQueue() pops a EventTarget::dispatchEvent() from a queue of |MockWebSpeechRecognizer::Task|s, which is absolutely odd.
https://cs.chromium.org/chromium/src/components/test_runner/mock_web_speech_recognizer.cc?rcl=0&l=272

Assigning to lukasza@ who did the last change in  mock_web_speech_recognizer.cc. Please help us find the right owner for this bug.

ClusterFuzz has detected this issue as fixed in range 420031:420042.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6416662964469760

Fuzzer: inferno_layout_test_unmodified
Job Type: mac_asan_content_shell
Platform Id: mac

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  blink::EventTarget::dispatchEvent
  test_runner::MockWebSpeechRecognizer::RunTaskFromQueue
  base::internal::Invoker<base::internal::BindState<void
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=mac_asan_content_shell&range=392770:392806
Fixed: https://cluster-fuzz.appspot.com/revisions?job=mac_asan_content_shell&range=420031:420042

Minimized Testcase (0.17 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95AsmFhnpB-rmo8XylY6vJv4xCi7AeooEG6rYrk3_9K2FgQEsd6mLlITiHpNmuMv--TAKvlCuHW7egnzemYeJJ8LxxCSH0ZdjFxObSeY2j_qOoMiIMmutB7zXDuwXN-aHbs6R-QTbJnW4rp4CZkaVKxCUDYmA?testcase_id=6416662964469760
<script>
  var recognition = new webkitSpeechRecognition();
  recognition.start();
  var recognition2 = new webkitSpeechRecognition();
  recognition2.start();
  </script>


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