Prevent OOB reads for truncated H264 STAP-A packets.

webrtc/modules/video_coding/main/source/session_info_unittest.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 1043 matching lines @@
   packet_.markerBit = false;
   FillPacket(1);
   EXPECT_EQ(packet_buffer_size(),
             static_cast<size_t>(session_.InsertPacket(packet_, frame_buffer_,
                                                       kNoErrors, frame_data)));
 
   EXPECT_EQ(2 * packet_buffer_size(), session_.MakeDecodable());
   EXPECT_EQ(0U, session_.SessionLength());
 }
 
+TEST_F(TestNalUnits, SurvivesIncorrectH264StapALength) {
+  packet_.codecSpecificHeader.codec = kRtpVideoH264;
+  packet_.codecSpecificHeader.codecHeader.H264.packetization_type = kH264StapA;
+  const uint8_t kPacket[] = {120, 16, 129, 58};
+  packet_.dataPtr = kPacket;
+  packet_.sizeBytes = sizeof(kPacket);
+  EXPECT_EQ(kSizeError, session_.InsertPacket(packet_, frame_buffer_, kNoErrors,
+                                              frame_data));
+}
+
 }  // namespace webrtc