Prevent OOB reads for truncated H264 STAP-A packets.

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

Index: webrtc/modules/video_coding/main/source/session_info_unittest.cc
diff --git a/webrtc/modules/video_coding/main/source/session_info_unittest.cc b/webrtc/modules/video_coding/main/source/session_info_unittest.cc
index fae55f425295fab1acb29cec780b43cead96ac8f..76f34407346844eefc86c9392041652e5a6dcaa5 100644
--- a/webrtc/modules/video_coding/main/source/session_info_unittest.cc
+++ b/webrtc/modules/video_coding/main/source/session_info_unittest.cc
@@ -1061,4 +1061,14 @@ TEST_F(TestNalUnits, ReorderWrapLosses) {
   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