diff -up cups-1.3.7/filter/texttops.c.CVE-2010-0542 cups-1.3.7/filter/texttops.c

--- cups-1.3.7/filter/texttops.c.CVE-2010-0542	2010-05-13 17:14:58.907217374 +0100

+++ cups-1.3.7/filter/texttops.c	2010-05-13 17:15:27.696093503 +0100

@@ -181,8 +181,20 @@ WriteProlog(const char *title,		/* I - T

     exit(1);

   }

-  Page    = calloc(sizeof(lchar_t *), SizeLines);

-  Page[0] = calloc(sizeof(lchar_t), SizeColumns * SizeLines);

+  if ((Page = calloc(sizeof(lchar_t *), SizeLines)) == NULL)

+  {

+    _cupsLangPrintf(stderr, _("ERROR: Unable to print %dx%d text page.\n"),

+                    SizeColumns, SizeLines);

+    exit(1);

+  }

+

+  if ((Page[0] = calloc(sizeof(lchar_t), SizeColumns * SizeLines)) == NULL)

+  {

+    _cupsLangPrintf(stderr, _("ERROR: Unable to print %dx%d text page.\n"),

+                    SizeColumns, SizeLines);

+    exit(1);

+  }

+

   for (i = 1; i < SizeLines; i ++)

     Page[i] = Page[0] + i * SizeColumns;