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From: Jed Davis <jld@mozilla.com>
Date: Sun, 17 Nov 2019 03:40:00 +0000
Subject: Bug 1545504 - Strengthen bounds check in WebRTC PhysicalSocketServer.
r=jesup
PhysicalSocketServer isn't currently used by Mozilla's WebRTC
integration, but just in case, let's make sure that this array index is
bounds-checked in actual use, not just in debug builds (which tend to
never see realistic test conditions).
---
rtc_base/physical_socket_server.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/rtc_base/physical_socket_server.cc b/rtc_base/physical_socket_server.cc
index 9b8584e74f..5a75fbb707 100644
--- a/rtc_base/physical_socket_server.cc
+++ b/rtc_base/physical_socket_server.cc
@@ -1548,7 +1548,7 @@ bool PhysicalSocketServer::WaitSelect(int cmsWait, bool process_io) {
int fd = pdispatcher->GetDescriptor();
// "select"ing a file descriptor that is equal to or larger than
// FD_SETSIZE will result in undefined behavior.
- RTC_DCHECK_LT(fd, FD_SETSIZE);
+ RTC_CHECK_LT(fd, FD_SETSIZE);
if (fd > fdmax)
fdmax = fd;