To: vim_dev@googlegroups.com
Subject: Patch 7.4.812
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
------------

Patch 7.4.812
Problem:    Gcc sanitizer complains about using a NULL pointer to memmove().
Solution:   Only call memmove when there is something to move. (Vittorio
            Zecca)
Files:      src/memline.c


*** ../vim-7.4.811/src/memline.c	2015-07-17 14:16:49.846596759 +0200
--- src/memline.c	2015-08-08 14:14:21.129601118 +0200
***************
*** 3834,3840 ****
  					(buf->b_ml.ml_stack_size + STACK_INCR));
  	if (newstack == NULL)
  	    return -1;
! 	mch_memmove(newstack, buf->b_ml.ml_stack,
  					     (size_t)top * sizeof(infoptr_T));
  	vim_free(buf->b_ml.ml_stack);
  	buf->b_ml.ml_stack = newstack;
--- 3834,3841 ----
  					(buf->b_ml.ml_stack_size + STACK_INCR));
  	if (newstack == NULL)
  	    return -1;
! 	if (top > 0)
! 	    mch_memmove(newstack, buf->b_ml.ml_stack,
  					     (size_t)top * sizeof(infoptr_T));
  	vim_free(buf->b_ml.ml_stack);
  	buf->b_ml.ml_stack = newstack;
*** ../vim-7.4.811/src/version.c	2015-08-04 22:02:45.215119715 +0200
--- src/version.c	2015-08-08 18:23:30.167691718 +0200
***************
*** 743,744 ****
--- 743,746 ----
  {   /* Add new patch number below this line */
+ /**/
+     812,
  /**/

-- 
DEAD PERSON:  I'm getting better!
CUSTOMER:     No, you're not -- you'll be stone dead in a moment.
MORTICIAN:    Oh, I can't take him like that -- it's against regulations.
                                  The Quest for the Holy Grail (Monty Python)

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///