Fixing SDP parsing crash due to invalid port numbers.

webrtc/pc/webrtcsdp_unittest.cc

Index: webrtc/pc/webrtcsdp_unittest.cc
diff --git a/webrtc/pc/webrtcsdp_unittest.cc b/webrtc/pc/webrtcsdp_unittest.cc
index 81a5aaf4fe65634bb5bf78b66d08fe46425aeeee..75116e8e33ec5ac5ec5276546ab65b78c0c9ee6f 100644
--- a/webrtc/pc/webrtcsdp_unittest.cc
+++ b/webrtc/pc/webrtcsdp_unittest.cc
@@ -3424,3 +3424,25 @@ TEST_F(WebRtcSdpTest, IceCredentialsInCandidateStringIgnored) {
   EXPECT_EQ("ufrag_voice", c.username());
   EXPECT_EQ("pwd_voice", c.password());
 }
+
+// Test that SDP with an invalid port number in "a=candidate" lines is
+// rejected, without crashing.
+// Regression test for:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=677029
+TEST_F(WebRtcSdpTest, DeserializeInvalidPortInCandidateAttribute) {
+  static const char kSdpWithInvalidCandidatePort[] =
+      "v=0\r\n"
+      "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
+      "s=-\r\n"
+      "t=0 0\r\n"
+      "m=audio 9 RTP/SAVPF 111\r\n"
+      "c=IN IP4 0.0.0.0\r\n"
+      "a=rtcp:9 IN IP4 0.0.0.0\r\n"
+      "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
+      "a=rtpmap:111 opus/48000/2\r\n"
+      "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 12345678 typ host "
+      "generation 2 raddr 192.168.1.1 rport 87654321\r\n";
+
+  JsepSessionDescription jdesc_output(kDummyString);
+  EXPECT_FALSE(SdpDeserialize(kSdpWithInvalidCandidatePort, &jdesc_output));
+}