From 9336e15197694eeb823da785668c5d892c318db4 Mon Sep 17 00:00:00 2001
From: StapleButter <thetotalworm@gmail.com>
Date: Tue, 19 Dec 2017 01:00:55 +0100
Subject: [PATCH] avoid crashing when receiving a packet that is too large

---
 src/libui_sdl/Platform.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libui_sdl/Platform.cpp b/src/libui_sdl/Platform.cpp
index f84f8f4f..507e0f3f 100644
--- a/src/libui_sdl/Platform.cpp
+++ b/src/libui_sdl/Platform.cpp
@@ -410,6 +410,8 @@ void LAN_RXCallback(u_char* blarg, const struct pcap_pkthdr* header, const u_cha
 {
     while (PCapRXNum > 0);
 
+    if (header->len > 2048-64) return;
+
     PCapPacketLen = header->len;
     memcpy(PCapPacketBuffer, data, PCapPacketLen);
     PCapRXNum = 1;