third_party/libwebrtc/moz-patch-stack/0015.patch

   1 From: Jed Davis <jld@mozilla.com>
   2 Date: Sun, 17 Nov 2019 03:40:00 +0000
   3 Subject: Bug 1545504 - Strengthen bounds check in WebRTC PhysicalSocketServer.
   4  r=jesup
   5
   6 PhysicalSocketServer isn't currently used by Mozilla's WebRTC
   7 integration, but just in case, let's make sure that this array index is
   8 bounds-checked in actual use, not just in debug builds (which tend to
   9 never see realistic test conditions).
  10
  11 Differential Revision: https://phabricator.services.mozilla.com/D52745
  12 Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/2b079067648bfe0d064a334bf19bdcc233e26b6e
  13 ---
  14  rtc_base/physical_socket_server.cc | 2 +-
  15  1 file changed, 1 insertion(+), 1 deletion(-)
  16
  17 diff --git a/rtc_base/physical_socket_server.cc b/rtc_base/physical_socket_server.cc
  18 index 4ed4fd0cbb..60d024c769 100644
  19 --- a/rtc_base/physical_socket_server.cc
  20 +++ b/rtc_base/physical_socket_server.cc
  21 @@ -1397,7 +1397,7 @@ bool PhysicalSocketServer::WaitSelect(int cmsWait, bool process_io) {
  22          int fd = pdispatcher->GetDescriptor();
  23          // "select"ing a file descriptor that is equal to or larger than
  24          // FD_SETSIZE will result in undefined behavior.
  25 -        RTC_DCHECK_LT(fd, FD_SETSIZE);
  26 +        RTC_CHECK_LT(fd, FD_SETSIZE);
  27          if (fd > fdmax)
  28            fdmax = fd;
  29
  30 --
  31 2.34.1
  32