renderer_crash.patch

   1 From 4e828b3bd2d410151dc2574d084bed631dac42ca Mon Sep 17 00:00:00 2001
   2 From: Daniel McArdle <dmcardle@chromium.org>
   3 Date: Thu, 16 Apr 2020 20:18:47 +0000
   4 Subject: [PATCH] [Backport] Fix for bug 1071327
   5
   6 Manual backport of patch originally reviewed on
   7 https://chromium-review.googlesource.com/c/chromium/src/+/2153325:
   8 Avoid nullptr dereference in RTCPeerConnectionHandler
   9
  10 Bug: 1071327
  11 Fixes: QTBUG-86752
  12 Change-Id: Icf4189905dc5c95854b5af4b3e5e25e0607dd39e
  13 Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
  14 ---
  15
  16 diff --git a/chromium/third_party/blink/renderer/modules/peerconnection/rtc_peer_connection_handler.cc b/chromium/third_party/blink/renderer/modules/peerconnection/rtc_peer_connection_handler.cc
  17 index 5a68327..371f25c 100644
  18 --- a/chromium/third_party/blink/renderer/modules/peerconnection/rtc_peer_connection_handler.cc
  19 +++ b/chromium/third_party/blink/renderer/modules/peerconnection/rtc_peer_connection_handler.cc
  20 @@ -2319,7 +2319,8 @@
  21
  22  void RTCPeerConnectionHandler::OnModifySctpTransport(
  23      blink::WebRTCSctpTransportSnapshot state) {
  24 -  client_->DidModifySctpTransport(state);
  25 +  if (client_)
  26 +    client_->DidModifySctpTransport(state);
  27  }
  28
  29  void RTCPeerConnectionHandler::OnModifyTransceivers(
  30 @@ -2446,7 +2447,8 @@
  31  }
  32
  33  void RTCPeerConnectionHandler::OnInterestingUsage(int usage_pattern) {
  34 -  client_->DidNoteInterestingUsage(usage_pattern);
  35 +  if (client_)
  36 +    client_->DidNoteInterestingUsage(usage_pattern);
  37  }
  38
  39  webrtc::SessionDescriptionInterface*