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Issue metadata

Status: Verified
Owner:
Closed: Sep 2016
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Regression



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Data race in base::internal::WeakReferenceOwner::~WeakReferenceOwner

Project Member Reported by ClusterFuzz, Sep 2 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6081850932199424

Fuzzer: inferno_flicker
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 1
Crash Address: 0x7d040000d8b5
Crash State:
  base::internal::WeakReferenceOwner::~WeakReferenceOwner
  media::FFmpegDemuxer::~FFmpegDemuxer
  media::FFmpegDemuxer::~FFmpegDemuxer
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=415049:415582

Minimized Testcase (2.22 Kb): https://cluster-fuzz.appspot.com/download/AMIfv972iAzLBCZNpLlL9kMdH57mAaum0fcWWIhpv-jFYtmhsr6chRx85Y-svIwx7foGMphN3c8O0S2UZHn8zDBsZ1cNUvGEUcQo5pi0naa0lqtElY6WO4VVI7ya4DAfjzNkYRYuWRLnFBiT8ONp7xvrVys8MSUwOw?testcase_id=6081850932199424

Issue manually filed by: msrchandra

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Components: Tools>Test>FindIt>CorrectResult
Labels: -Type-Bug findit-wrong Te-Logged Type-Bug-Regression
Owner: dalecur...@chromium.org
Status: Assigned (was: Untriaged)
Using find it assigning the issue to the concern owner.
Providing find it results for internal purpose.
Suspected CLs	The result is a list of CLs that change the crashed files.

Author: dalecurtis
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/f299e19db62058180acf4276540670a90ff7b472
Time: Tue Aug 30 19:54:19 2016
File ffmpeg_demuxer.cc is changed in this cl (and is part of stack frame #2, "media::FFmpegDemuxer::~FFmpegDemuxer")
Minimum distance from crash line to modified line: 11. (file: ffmpeg_demuxer.cc, crashed on: 880, modified: 891).

Author: dalecurtis
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/9d638a1ee2933e62dccaed16eef64e64cbe2ded9
Time: Tue Aug 30 06:20:55 2016
File webmediaplayer_impl.cc is changed in this cl (and is part of stack frame #4, "media::WebMediaPlayerImpl::~WebMediaPlayerImpl")
Minimum distance from crash line to modified line: 30. (file: webmediaplayer_impl.cc, crashed on: 260, modified: 230).

Suspected Project: chromium

Suspecting Commit# f299e19db62058180acf4276540670a90ff7b472
Suspecting Review URL# https://codereview.chromium.org/2267963002

@dalecurtis -- Could you please look into the issue. Pardon me if it has nothing to do with your changes.
Thank You.
Project Member

Comment 2 by ClusterFuzz, Sep 4 2016

ClusterFuzz has detected this issue as fixed in range 416413:416450.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6081850932199424

Fuzzer: inferno_flicker
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 1
Crash Address: 0x7d040000d8b5
Crash State:
  base::internal::WeakReferenceOwner::~WeakReferenceOwner
  media::FFmpegDemuxer::~FFmpegDemuxer
  media::FFmpegDemuxer::~FFmpegDemuxer
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=415049:415582
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=416413:416450

Minimized Testcase (2.22 Kb): https://cluster-fuzz.appspot.com/download/AMIfv972iAzLBCZNpLlL9kMdH57mAaum0fcWWIhpv-jFYtmhsr6chRx85Y-svIwx7foGMphN3c8O0S2UZHn8zDBsZ1cNUvGEUcQo5pi0naa0lqtElY6WO4VVI7ya4DAfjzNkYRYuWRLnFBiT8ONp7xvrVys8MSUwOw?testcase_id=6081850932199424

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.
Project Member

Comment 3 by ClusterFuzz, Sep 4 2016

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase is verified as fixed, closing issue.

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

Comment 4 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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