From 97497fa1a1b058bad530e45fec459dfd2d92c63a Mon Sep 17 00:00:00 2001
From: James R <justsomejames2@gmail.com>
Date: Fri, 16 Dec 2022 18:56:52 -0800
Subject: [PATCH] Guard against out of bounds sprite brightmap

---
 src/r_things.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/r_things.c b/src/r_things.c
index 6f1dd436a..90b5cc1db 100644
--- a/src/r_things.c
+++ b/src/r_things.c
@@ -889,6 +889,13 @@ static void R_DrawVisSprite(vissprite_t *vis)
 		if ((UINT64)overflow_test&0xFFFFFFFF80000000ULL) return; // ditto
 	}
 
+	// Prevent an out of bounds error
+	if (bmpatch && (bmpatch->width != patch->width ||
+				bmpatch->height != patch->height))
+	{
+		return;
+	}
+
 	R_SetColumnFunc(BASEDRAWFUNC, false); // hack: this isn't resetting properly somewhere.
 	dc_colormap = vis->colormap;
 	dc_fullbright = colormaps;