From a9374f068bbb696249dcd73ef8a0e10ca73447d5 Mon Sep 17 00:00:00 2001
From: smallmodel <15067410+smallmodel@users.noreply.github.com>
Date: Thu, 17 Aug 2023 18:24:50 +0200
Subject: [PATCH] Added a check to avoid packed from being out of bounds in
 MSG_PackCoord()

---
 code/qcommon/msg.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/code/qcommon/msg.cpp b/code/qcommon/msg.cpp
index f83ac0bb..9ce52802 100644
--- a/code/qcommon/msg.cpp
+++ b/code/qcommon/msg.cpp
@@ -2157,7 +2157,11 @@ int MSG_PackAlpha(float alpha, int bits)
 int MSG_PackCoord(float coord)
 {
 	unsigned int packed = (unsigned int)round(coord * 4.0 + MAX_PACKED_COORD_HALF);
-	coordstats[packed]++;
+	if (packed >= MAX_PACKED_COORD) {
+		Com_DPrintf("Illegal XYZ coordinates for an entity, small information lost in transmission\n");
+	} else {
+		coordstats[packed]++;
+	}
 
 	return packed;
 }