diff --git a/7.1.173 b/7.1.173
new file mode 100644
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--- /dev/null
+++ b/7.1.173
@@ -0,0 +1,61 @@
+To: vim-dev@vim.org
+Subject: Patch 7.1.173
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=ISO-8859-1
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.1.173
+Problem:    Accessing freed memory. (Dominique Pelle)
+Solution:   Don't call reg_getline() to check if a line is the first in the
+	    file.
+Files:	    src/regexp.c
+
+
+*** ../vim-7.1.172/src/regexp.c	Thu Nov 29 21:26:38 2007
+--- src/regexp.c	Sat Dec  8 15:54:05 2007
+***************
+*** 3810,3820 ****
+  	    break;
+  
+  	  case RE_BOF:
+! 	    /* Passing -1 to the getline() function provided for the search
+! 	     * should always return NULL if the current line is the first
+! 	     * line of the file. */
+  	    if (reglnum != 0 || reginput != regline
+! 			|| (REG_MULTI && reg_getline((linenr_T)-1) != NULL))
+  		status = RA_NOMATCH;
+  	    break;
+  
+--- 3810,3820 ----
+  	    break;
+  
+  	  case RE_BOF:
+! 	    /* We're not at the beginning of the file when below the first
+! 	     * line where we started, not at the start of the line or we
+! 	     * didn't start at the first line of the buffer. */
+  	    if (reglnum != 0 || reginput != regline
+! 					  || (REG_MULTI && reg_firstlnum > 1))
+  		status = RA_NOMATCH;
+  	    break;
+  
+*** ../vim-7.1.172/src/version.c	Sat Dec  8 22:20:24 2007
+--- src/version.c	Sun Dec  9 19:24:36 2007
+***************
+*** 668,669 ****
+--- 668,671 ----
+  {   /* Add new patch number below this line */
++ /**/
++     173,
+  /**/
+
+-- 
+hundred-and-one symptoms of being an internet addict:
+213. Your kids start referring to you as "that guy in front of the monitor."
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\        download, build and distribute -- http://www.A-A-P.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///