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Issue 633142 link

Starred by 1 user
Status: Fixed
Owner:
█ hubbe@chromium.org
Last visit > 30 days ago
Closed: Oct 2016
Cc:
nyerramilli@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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reader_.get() in multibuffer_data_source.cc

Project Member Reported by ClusterFuzz, Aug 1 2016 
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4906872826232832

Fuzzer: inferno_flicker
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  reader_.get() in multibuffer_data_source.cc
  media::MultibufferDataSource::MediaPlaybackRateChanged
  media::WebMediaPlayerImpl::setRate
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_chrome&range=376896:376900

Minimized Testcase (1421.22 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94uyytuA57pceQTqm3NprLxfQlB8wywIMPI2VtsuoHN1e92Dc5srgs3SA5hVbaBB4eX21pAW2yqKw7c5LziQ9XOPiaxH_IJ6QwTvf_G_cOUQtPozk3qgnO-rpJYG31Kbll6rq1pol33GTjKEz74X5zsYt79Rdw05pZFDHbTZbmSMy9r4xQ?testcase_id=4906872826232832

Filer: nyerramilli

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

Comment 1 by nyerramilli@google.com, Aug 1 2016

Cc: nyerramilli@chromium.org
Components: Tools>Test>FindIt>NoResult
Labels: findit-wrong Te-Logged
Owner: pkasting@chromium.org
Status: Assigned (was: Untriaged)
providing Findit results for internal purpose:
Suspected CLs	Findit could not determine the memory tool from the stacktrace. Is it in a new format?

using codesearch, seeing some changes to 'multibuffer_data_source.cc' in 
https://chromium.googlesource.com/chromium/src/+/f5279485c5c9319fefc51fab2ff26b4672310cc1

pkasting@, Would you mind checking the above issue & see if it's related, please re-assign if it is not related to your change.

Comment 2 by pkasting@chromium.org, Aug 1 2016

Components: Blink>Media
Owner: jrumm...@chromium.org
My CL has no functional effect and only affects logging.

Reassigning to a random media/ OWNER to triage better.

Comment 3 by jrumm...@chromium.org, Aug 1 2016

Owner: hubbe@chromium.org

Comment 4 by mlamouri@chromium.org, Aug 3 2016

Components: -Blink>Media Internals>Media

Comment 5 by kateso...@chromium.org, Oct 18 2016

Components: -Tools>Test>FindIt>NoResult
Project Member

Comment 6 by bugdroid1@chromium.org, Oct 28 2016 

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9d7fd58d9bd9540890aa53a243e1a07408fba7eb

commit 9d7fd58d9bd9540890aa53a243e1a07408fba7eb
Author: hubbe <hubbe@chromium.org>
Date: Fri Oct 28 02:22:05 2016

Remove redundant and erroneous DCHECK

reader_ can be null, and that's fine.

BUG= 633142 

Review-Url: https://codereview.chromium.org/2449103008
Cr-Commit-Position: refs/heads/master@{#428252}

[modify] https://crrev.com/9d7fd58d9bd9540890aa53a243e1a07408fba7eb/media/blink/multibuffer_data_source.cc

Comment 7 by hubbe@chromium.org, Oct 28 2016

Status: Fixed (was: Assigned)
Project Member

Comment 8 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
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
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