From a06aa1590ffb6e3178ef9110ac3003ec7c9fcbb0 Mon Sep 17 00:00:00 2001
From: Alug <alufoliehorst@gmail.com>
Date: Thu, 16 Oct 2025 13:39:35 +0200
Subject: [PATCH] add allocation failure case in R_DrawMasked

---
 src/r_things.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/r_things.cpp b/src/r_things.cpp
index 3b8e69808..0b332bff0 100644
--- a/src/r_things.cpp
+++ b/src/r_things.cpp
@@ -3857,6 +3857,9 @@ void R_DrawMasked(maskcount_t* masks, INT32 nummasks)
 
 	heads = static_cast<drawnode_t*>(calloc(nummasks, sizeof(drawnode_t)));
 
+	if (!heads)
+		I_Error("R_DrawMasked: No more free memory\n");
+
 	for (i = 0; i < nummasks; i++)
 	{
 		heads[i].next = heads[i].prev = &heads[i];