diff -up john-1.7.3.1/src/NETHALFLM_fmt.c.stack_smash john-1.7.3.1/src/NETHALFLM_fmt.c
--- john-1.7.3.1/src/NETHALFLM_fmt.c.stack_smash	2008-10-29 19:45:21.000000000 +0100
+++ john-1.7.3.1/src/NETHALFLM_fmt.c	2008-10-29 19:48:15.000000000 +0100
@@ -106,10 +106,10 @@ static void nethalflm_crypt_all(int coun
   static unsigned char magic[] = {0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25};
   DES_key_schedule ks;
   unsigned char password[7 + 1];
-  unsigned char lm[7];
+  unsigned char lm[8];
 
   /* clear buffers */
-  memset(lm, 0, 7);
+  memset(lm, 0, 8);
   memset(output, 0, 8);  
 
   strncpy((char *) password, saved_plain, 7);