From 4ca864c71e2a18e2f0acc2cdbd339919a7cb9b39 Mon Sep 17 00:00:00 2001
From: Zdenek Dohnal <zdohnal@redhat.com>
Date: Tue, 28 Nov 2023 08:38:17 +0100
Subject: [PATCH] raster-interpreter.c: Fix crash when incoming `*ptr` is NULL

The same fix as in OpenPrinting/CUPS #831
---
 ppd/raster-interpret.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ppd/raster-interpret.c b/ppd/raster-interpret.c
index de3a38cc..ad0b456b 100644
--- a/ppd/raster-interpret.c
+++ b/ppd/raster-interpret.c
@@ -1203,6 +1203,9 @@ ppd_scan_ps(_ppd_ps_stack_t  *st,	// I  - Stack
   int			parens;		// Parenthesis nesting level
 
 
+  if (!*ptr)
+    return (NULL);
+
   //
   // Skip leading whitespace...
   //