From c7358ea4883aa508d2c9523567aaddae18c29d2e Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Tue, 7 Mar 2023 21:29:19 +0100
Subject: [PATCH] add size limit for surfaces

---
 src/ddsurface.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/ddsurface.c b/src/ddsurface.c
index b8ff738..a091a43 100644
--- a/src/ddsurface.c
+++ b/src/ddsurface.c
@@ -1279,6 +1279,12 @@ HRESULT dd_CreateSurface(
     if (lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_OVERLAY)
         return DDERR_UNSUPPORTED;
 
+    if (!(lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE) && 
+        (lpDDSurfaceDesc->dwWidth > 16384 || lpDDSurfaceDesc->dwHeight > 16384))
+    {
+        return DDERR_INVALIDPARAMS;
+    }
+
     if ((lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE) &&
         g_ddraw->primary &&
         g_ddraw->primary->width == g_ddraw->width &&