[webkit-changes] [WebKit/WebKit] ebb91e: Add a bounds check in [RTCCVPixelBuffer toI420]

[youennf]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: ebb91ef51ed3a08bfe50add2a3ce4e7da96e25e3
      https://github.com/WebKit/WebKit/commit/ebb91ef51ed3a08bfe50add2a3ce4e7da96e25e3
  Author: Youenn Fablet <youennf at gmail.com>
  Date:   2023-05-30 (Tue, 30 May 2023)

  Changed paths:
    M Source/ThirdParty/libwebrtc/Source/webrtc/sdk/objc/components/video_frame_buffer/RTCCVPixelBuffer.mm
    M Source/ThirdParty/libwebrtc/Source/webrtc/sdk/objc/native/src/objc_frame_buffer.mm

  Log Message:
  -----------
  Add a bounds check in [RTCCVPixelBuffer toI420]
https://bugs.webkit.org/show_bug.cgi?id=257479
rdar://108377764

Reviewed by Jean-Yves Avenard.

Add a width/height check to toI420 for extra safety.
Update ObjCFrameBuffer::wrapped_frame_buffer to always use a mutex.

* Source/ThirdParty/libwebrtc/Source/webrtc/sdk/objc/components/video_frame_buffer/RTCCVPixelBuffer.mm:
(-[RTCCVPixelBuffer toI420]):
* Source/ThirdParty/libwebrtc/Source/webrtc/sdk/objc/native/src/objc_frame_buffer.mm:
(webrtc::ObjCFrameBuffer::wrapped_frame_buffer const):

Canonical link: https://commits.webkit.org/264670@main