Issue 722005  has been merged into this issue.

Also crashing in the wild:
QUERY: custom_data.ChromeCrashProto.magic_signature_1.name='blink::ImageLoader::DispatchPendingErrorEvent'

Suspected CL: https://codereview.chromium.org/2859383002/

Reverting.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9d5bcf58d9932d151f12231a6544b67903780fed

commit 9d5bcf58d9932d151f12231a6544b67903780fed
Author: hiroshige <hiroshige@chromium.org>
Date: Sat May 13 18:03:28 2017

Revert of Add CHECK()s about ImageLoader::has_pending_load_event_ (patchset #12 id:220001 of https://codereview.chromium.org/2859383002/ )

Reason for revert:
Assertion failures in the wild and on clusterfuzz.
BUG= 721994 

Original issue's description:
> Add CHECK()s about ImageLoader::has_pending_load_event_
>
> As preparation for [1], this CL checks some assumptions to hold that
> are helpful for proving the equivalences in [1].
>
> [1] https://codereview.chromium.org/2859093003/
>
> BUG= 624697 ,  719759 
>
> Review-Url: https://codereview.chromium.org/2859383002
> Cr-Commit-Position: refs/heads/master@{#471464}
> Committed: https://chromium.googlesource.com/chromium/src/+/1b070387595668ec438ffec65185e61017300e3c

TBR=japhet@chromium.org,yhirano@chromium.org,kinuko@chromium.org,kouhei@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG= 624697 ,  719759 

Review-Url: https://codereview.chromium.org/2878263002
Cr-Commit-Position: refs/heads/master@{#471598}

[modify] https://crrev.com/9d5bcf58d9932d151f12231a6544b67903780fed/third_party/WebKit/Source/core/loader/ImageLoader.cpp

Reverted. I expect fixed on next canary.

ClusterFuzz has detected this issue as fixed in range 471596:471599.

Detailed report: https://clusterfuzz.com/testcase?key=4876188245032960

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  has_pending_error_event_ in ImageLoader.cpp
  blink::ImageLoader::DispatchPendingErrorEvent
  blink::EventSender<>::DispatchPendingEvents
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=471391:471465
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=471596:471599

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4876188245032960


Additional requirements: Requires HTTP

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 4876188245032960 is verified as fixed, so closing issue.

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

 Issue 722057  has been merged into this issue.