# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1503238504 -7200
# Node ID 497b7852635891998b7cb3295383e19694c327f2
# Parent  f19e93e09b42071dd1774d284e78ce4ef8c4a19a
patch 8.0.0975: using freed memory when setting 'backspace'

commit https://github.com/vim/vim/commit/edbc0d46cffe1766d0b330dc2842212cff644f8e
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sun Aug 20 16:11:51 2017 +0200

    patch 8.0.0975: using freed memory when setting 'backspace'

    Problem:    Using freed memory when setting 'backspace'.
    Solution:   When changing oldval also change origval.

diff --git a/src/option.c b/src/option.c
--- a/src/option.c
+++ b/src/option.c
@@ -4927,6 +4927,8 @@ do_set(
 					break;
 				}
 				vim_free(oldval);
+				if (origval == oldval)
+				    origval = *(char_u **)varp;
 				oldval = *(char_u **)varp;
 			    }
 			    /*
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    975,
+/**/
     974,
 /**/
     973,