diff --git a/ncompress-4.2.4-uncheckedmalloc.patch b/ncompress-4.2.4-uncheckedmalloc.patch
new file mode 100644
index 0000000..729ef07
--- /dev/null
+++ b/ncompress-4.2.4-uncheckedmalloc.patch
@@ -0,0 +1,34 @@
+diff -urNp ncompress-4.2.4-orig/compress42.c ncompress-4.2.4/compress42.c
+--- ncompress-4.2.4-orig/compress42.c	2008-12-01 13:50:17.000000000 +0100
++++ ncompress-4.2.4/compress42.c	2008-12-01 13:53:03.000000000 +0100
+@@ -132,6 +132,7 @@
+  */
+ #include	<unistd.h>
+ #include	<stdio.h>
++#include  <stdlib.h>
+ #include	<fcntl.h>
+ #include	<ctype.h>
+ #include	<signal.h>
+@@ -696,7 +697,13 @@ main(argc, argv)
+             }
+         }
+ 
+-        filelist = fileptr = (char **)malloc(argc*sizeof(char *));
++        filelist = (char **)malloc(argc*sizeof(char *));
++        if (filelist == NULL)
++          {
++             fprintf(stderr, "Cannot allocate memory for file list.\n");
++             exit (1);
++          }
++        fileptr = filelist;
+     	*filelist = NULL;
+ 
+     	if((progname = rindex(argv[0], '/')) != 0)
+@@ -836,6 +843,7 @@ nextarg:	continue;
+ 				decompress(0, 1);
+ 		}
+         
++    free(filelist);
+ 		exit((exit_code== -1) ? 1:exit_code);
+                 return 0;
+ 	}
diff --git a/ncompress.spec b/ncompress.spec
index 55023cc..9499b0c 100644
--- a/ncompress.spec
+++ b/ncompress.spec
@@ -1,10 +1,10 @@
 Summary: Fast compression and decompression utilities
 Name: ncompress
 Version: 4.2.4
-Release: 50%{?dist}
+Release: 51%{?dist}
 License: Public Domain
 Group: Applications/File
-URL:    ftp://sunsite.unc.edu/pub/Linux/utils/compress/
+URL:    http://ncompress.sourceforge.net/
 Source: ftp://metalab.unc.edu/pub/Linux/utils/compress/%{name}-%{version}.tar.Z
 Patch0: ncompress-4.2.4-make.patch
 Patch1: ncompress-4.2.4-lfs2.patch
@@ -13,6 +13,7 @@ Patch3: ncompress-2GB.patch
 Patch4: ncompress-4.2.4-zerobyteforce.patch
 Patch5: ncompress-4.2.4-bssUnderflow.patch
 Patch6: ncompress-4.2.4-endians.patch
+Patch7: ncompress-4.2.4-uncheckedmalloc.patch
 BuildRequires: gcc glibc-devel fileutils
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -35,6 +36,7 @@ which are compatible with the original UNIX compress utility.
 %patch4 -p1 -b .zerobyteforce
 %patch5 -p1 -b .bssUnderflow
 %patch6 -p1 -b .endians
+%patch7 -p1 -b .malloccheck
 
 %build
 
@@ -71,6 +73,11 @@ rm -rf $RPM_BUILD_ROOT
 %doc LZW.INFO README
 
 %changelog
+* Mon Dec 01 2008 Ondrej Vasik <ovasik@redhat.com> - 4.2.4-51
+- check malloc success (#473488)
+- fix few compiler warnings, free malloc memory before exit
+- new URL
+
 * Tue Feb 19 2008 Fedora Release Engineering <rel-eng@fedoraproject.org> - 4.2.4-50
 - Autorebuild for GCC 4.3