File U_0003-XPutImage-clip-images-to-maximum-height-width-allowe.patch of Package libX11.37665

From 73a37d5f2fcadd6540159b432a70d80f442ddf4a Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Thu, 7 Sep 2023 15:55:04 -0700
Subject: [PATCH libX11 3/5] XPutImage: clip images to maximum height & width
 allowed by protocol

The PutImage request specifies height & width of the image as CARD16
(unsigned 16-bit integer), same as the maximum dimensions of an X11
Drawable, which the image is being copied to.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
---
 src/PutImage.c | 5 +++++
 1 file changed, 5 insertions(+)

Index: libX11-1.6.5/src/PutImage.c
===================================================================
--- libX11-1.6.5.orig/src/PutImage.c
+++ libX11-1.6.5/src/PutImage.c
@@ -30,6 +30,7 @@ in this Software without prior written a
 #include "Xlibint.h"
 #include "Xutil.h"
 #include <stdio.h>
+#include <limits.h>
 #include "Cr.h"
 #include "ImUtil.h"
 
@@ -961,6 +962,10 @@ XPutImage (
 	height = image->height - req_yoffset;
     if ((width <= 0) || (height <= 0))
 	return 0;
+    if (width > USHRT_MAX)
+        width = USHRT_MAX;
+    if (height > USHRT_MAX)
+        height = USHRT_MAX;
 
     if ((image->bits_per_pixel == 1) || (image->format != ZPixmap)) {
 	dest_bits_per_pixel = 1;