Author: ivoc
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/cf0887d3df989061ca653339e7affa8e49a3cfe6
Time: Thu Jul 07 18:23:53 2016
Files webrtc_eventlog_host.cc, peer_connection_tracker_host.cc are changed in this cl (and is part of stack frame #1, "content::WebRTCEventLogHost::PeerConnectionRemoved")
Minimum distance from crash line to modified line: 6. (file: peer_connection_tracker_host.cc, crashed on: 26, modified: 20).

This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/884da816c46c6a77c289d4aee36e2f34f47269c3

commit 884da816c46c6a77c289d4aee36e2f34f47269c3
Author: ivoc <ivoc@chromium.org>
Date: Thu Jul 28 15:43:04 2016

Changed raw pointer to WeakPtr to prevent use-after-free on destruction.

BUG= 631320 

Review-Url: https://codereview.chromium.org/2187243002
Cr-Commit-Position: refs/heads/master@{#408401}

[modify] https://crrev.com/884da816c46c6a77c289d4aee36e2f34f47269c3/content/browser/media/webrtc/webrtc_eventlog_host.cc
[modify] https://crrev.com/884da816c46c6a77c289d4aee36e2f34f47269c3/content/browser/media/webrtc/webrtc_eventlog_host.h
[modify] https://crrev.com/884da816c46c6a77c289d4aee36e2f34f47269c3/content/browser/renderer_host/media/peer_connection_tracker_host.cc
[modify] https://crrev.com/884da816c46c6a77c289d4aee36e2f34f47269c3/content/browser/renderer_host/media/peer_connection_tracker_host.h
[modify] https://crrev.com/884da816c46c6a77c289d4aee36e2f34f47269c3/content/browser/renderer_host/render_process_host_impl.cc

This should be fixed now.

ClusterFuzz has detected this issue as fixed in range 408378:408381.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4651044139433984

Fuzzer: ipc_fuzzer_gen
Job Type: linux_asan_chrome_ipc
Platform Id: linux

Crash Type: Heap-use-after-free READ 8
Crash Address: 0x6170000b9048
Crash State:
  content::WebRTCEventLogHost::PeerConnectionRemoved
  bool IPC::MessageT<PeerConnectionTrackerHost_RemovePeerConnection_Meta, std::__1
  content::PeerConnectionTrackerHost::OnMessageReceived
  
Recommended Security Severity: High

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_ipc&range=404161:404191
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_ipc&range=408378:408381

Minimized Testcase (488.66 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96LRJCiD3xiksXW8PTBjf0c7jvDjMXMKWgOhq4s1rkSSWjUGOaLpWHHnhT01pbR3CdTJIu8mPG0hBf5EDoKXxGfdVSD_URlmdA2Enjktga1_F-a68WXooXcEatfsWfenCMy0mezWj_dHSc5MMMzD0utZj9KZQi16rg_tmu77N5Bk6DEoZY?testcase_id=4651044139433984

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.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot