based on Findit results, assigning to esprehn@ Could you please check the above issue & help us in finding an owner it its not yours.

Suspected CLs	The result is a list of CLs that change the crashed files.

Author: esprehn
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/499ab26b15f221bbd217f068720bc9fe9b2e6923
Time: Wed Jul 13 05:22:10 2016
Lines 68-73, 381 of file DatabaseAuthorizer.cpp which potentially caused crash are changed in this cl (frame #0, "blink::"; frame #1, "blink::DatabaseAuthorizer::allowFunction").
Minimum distance from crash line to modified line: 0. (file: DatabaseAuthorizer.cpp, crashed on: 65, modified: 65).

Suspected Project: chromium

Yeah woops, that's used on the Database thread.

https://codereview.chromium.org/2152173002

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/24bf381b82d0222181a2d3f8e2184e07c35989da

commit 24bf381b82d0222181a2d3f8e2184e07c35989da
Author: esprehn <esprehn@chromium.org>
Date: Fri Jul 15 08:52:53 2016

Fix static race in DatabaseAuthorizer's whitelistedFunctions.

The DatabaseAuthorizer is created on the main thread but used on
the database thread, we should use a thread safe static local to do
the init.

BUG= 628480 

Review-Url: https://codereview.chromium.org/2152173002
Cr-Commit-Position: refs/heads/master@{#405727}

[modify] https://crrev.com/24bf381b82d0222181a2d3f8e2184e07c35989da/third_party/WebKit/Source/modules/webdatabase/DatabaseAuthorizer.cpp

ClusterFuzz has detected this issue as fixed in range 405645:405727.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5785022569381888

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_debug_content_shell_drt
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  listStaticLocalVerifier.isNotRacy()
  blink::whitelistedFunctions
  blink::DatabaseAuthorizer::allowFunction
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=404947:405052
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=405645:405727

Minimized Testcase (0.23 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95sIdku8ebfPD8S6TGlLszkXF6a_Rshm1STXF-_6jUzUdmSc4d0vQ0jLBg_zzwx157gQuL49ggElW9mL7eRI1bl6aG4vlLrjXhrVlbhTTpLgec8RlBni95fDRp11kQ8RMT-5xl4fq-XlMZDIy7CgeWqnyM1bg?testcase_id=5785022569381888
<script>
	var db = openDatabase('test_db', '1.0', 'Test database', 1024);
	db.transaction(function(tx) {
			tx.executeSql('SELECT "AAAAABBBBBCCCCCDDDDEEEEE" REGEXP "(?<!\\ubeaf(\\ubeaf{11000}){11000})"');
		location.reload();
	});
</script>


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