$OpenBSD: patch-pbm_pbmreduce_c,v 1.1 2003/03/29 04:13:54 brad Exp $
--- pbm/pbmreduce.c.orig	Wed Apr 26 15:24:02 2000
+++ pbm/pbmreduce.c	Fri Mar 28 20:22:06 2003
@@ -92,8 +92,9 @@ main( argc, argv )
 
     if ( halftone == QT_FS ) {
         /* Initialize Floyd-Steinberg. */
-        thiserr = (long*) malloc( ( newcols + 2 ) * sizeof(long) );
-        nexterr = (long*) malloc( ( newcols + 2 ) * sizeof(long) );
+        overflow_add(newcols, 2);
+        thiserr = (long*) malloc2( ( newcols + 2 ), sizeof(long) );
+        nexterr = (long*) malloc2( ( newcols + 2 ), sizeof(long) );
         if ( thiserr == 0 || nexterr == 0 )
           pm_error( "out of memory" );