New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 921959 link

Starred by 1 user

Issue metadata

Status: Verified
Owner: ----
Closed: Jan 16
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference READ in webrtc::video_coding::DecodedFramesHistory::WasDecoded

Project Member Reported by ClusterFuzz, Jan 15

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6231151873884160

Fuzzer: libFuzzer_frame_buffer2_fuzzer
Fuzz target binary: frame_buffer2_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  webrtc::video_coding::DecodedFramesHistory::WasDecoded
  webrtc::video_coding::FrameBuffer::UpdateFrameInfoWithIncomingFrame
  webrtc::video_coding::FrameBuffer::InsertFrame
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=622688:622701

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6231151873884160

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.
 
Project Member

Comment 1 by ClusterFuzz, Jan 15

Cc: tommi@webrtc.org niklas.enbom@webrtc.org stefan@webrtc.org mflodman@webrtc.org henrika@webrtc.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 2 by ClusterFuzz, Jan 15

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

Introduce DecodedFramesHistory class and use it in FrameBuffer by ilnik@webrtc.org - https://webrtc.googlesource.com/src/+/13717842dfcf39c310ad5825fa0689511a922dd4

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Can anyone please add ilnik@chromium.org to cc? I can't edit anything with my webrtc account and my chromioum doesn't have access to this issue.
Project Member

Comment 5 by ClusterFuzz, Jan 15

Labels: OS-Windows
Project Member

Comment 6 by ClusterFuzz, Jan 16 (6 days ago)

ClusterFuzz has detected this issue as fixed in range 623038:623040.

Detailed report: https://clusterfuzz.com/testcase?key=6231151873884160

Fuzzer: libFuzzer_frame_buffer2_fuzzer
Fuzz target binary: frame_buffer2_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  webrtc::video_coding::DecodedFramesHistory::WasDecoded
  webrtc::video_coding::FrameBuffer::UpdateFrameInfoWithIncomingFrame
  webrtc::video_coding::FrameBuffer::InsertFrame
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=622688:622701
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=623038:623040

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6231151873884160

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 7 by ClusterFuzz, Jan 16 (6 days ago)

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6231151873884160 is verified as fixed, so closing issue as verified.

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

Sign in to add a comment