To: vim_dev@googlegroups.com
Subject: Patch 8.1.0565
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 8.1.0565
Problem:    Asan complains about reading before allocated block.
Solution:   Workaround: Avoid offset from becoming negative.
Files:	    src/gui.c


*** ../vim-8.1.0564/src/gui.c	2018-11-16 16:21:01.633310065 +0100
--- src/gui.c	2018-12-05 19:44:07.455956642 +0100
***************
*** 2753,2759 ****
  	}
  	else if (enc_utf8)
  	{
! 	    if (ScreenLines[off + col1] == 0)
  		--col1;
  # ifdef FEAT_GUI_GTK
  	    if (col2 + 1 < Columns && ScreenLines[off + col2 + 1] == 0)
--- 2753,2760 ----
  	}
  	else if (enc_utf8)
  	{
! 	    // FIXME: how can the first character ever be zero?
! 	    if (col1 > 0 && ScreenLines[off + col1] == 0)
  		--col1;
  # ifdef FEAT_GUI_GTK
  	    if (col2 + 1 < Columns && ScreenLines[off + col2 + 1] == 0)
*** ../vim-8.1.0564/src/version.c	2018-12-05 18:43:24.489493117 +0100
--- src/version.c	2018-12-05 19:45:06.855458016 +0100
***************
*** 794,795 ****
--- 794,797 ----
  {   /* Add new patch number below this line */
+ /**/
+     565,
  /**/

-- 
SECOND SOLDIER: It could be carried by an African swallow!
FIRST SOLDIER:  Oh  yes! An African swallow maybe ... but not a European
                swallow. that's my point.
                 "Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD

 /// 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    ///