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Issue 827715 link

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Issue metadata

Status: Verified
Owner: ----
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Bad-cast to rtc::PacketTransportInternal from invalid vptr in webrtc::RtpTransport::IsTransportWritable

Project Member Reported by ClusterFuzz, Mar 30 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5426602402643968

Fuzzer: phoglund_webrtc_peerconnection
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0xfffffed26eb224c1
Crash State:
  Bad-cast to rtc::PacketTransportInternal from invalid vptr
  webrtc::RtpTransport::IsTransportWritable
  webrtc::RtpTransport::OnWritableState
  
Sanitizer: cfi (CFI)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=546367:546391

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5426602402643968

Additional requirements: Requires HTTP

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Mar 30 2018

Cc: zhihuang@webrtc.org
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Reland "Replace BundleFilter with RtpDemuxer in RtpTransport." by zhihuang@webrtc.org - https://webrtc.googlesource.com/src/+/27f3bf512827b483f9e0c67ce76362d83faa1950

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.

Comment 2 by zhihuang@webrtc.org, Mar 30 2018

Should be fixed. The original CL was reverted.
Project Member

Comment 3 by ClusterFuzz, Mar 31 2018

ClusterFuzz has detected this issue as fixed in range 546853:546919.

Detailed report: https://clusterfuzz.com/testcase?key=5426602402643968

Fuzzer: phoglund_webrtc_peerconnection
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0xfffffed26eb224c1
Crash State:
  Bad-cast to rtc::PacketTransportInternal from invalid vptr
  webrtc::RtpTransport::IsTransportWritable
  webrtc::RtpTransport::OnWritableState
  
Sanitizer: cfi (CFI)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=546367:546391
Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=546853:546919

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5426602402643968

Additional requirements: Requires HTTP

See https://github.com/google/clusterfuzz-tools 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 4 by ClusterFuzz, Mar 31 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 5426602402643968 is verified as fixed, so closing issue as verified.

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

Comment 5 by sheriffbot@chromium.org, Mar 31 2018

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Components: Blink>WebRTC
Adding label for posterity.
Project Member

Comment 7 by sheriffbot@chromium.org, Jul 7

Labels: -Restrict-View-SecurityNotify allpublic
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
Project Member

Comment 8 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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