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changeset 32094:7d94b1c0f292 v9.0.1378

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patch 9.0.1378: illegal memory access when using virtual editing Commit: https://github.com/vim/vim/commit/c99cbf8f289bdda5d4a77d7ec415850a520330ba Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 4 14:13:10 2023 +0000 patch 9.0.1378: illegal memory access when using virtual editing Problem: Illegal memory access when using virtual editing. Solution: Make sure "startspaces" is not negative.
author Bram Moolenaar <Bram@vim.org>
date Sat, 04 Mar 2023 15:15:04 +0100
parents 1b6ac899f079
children 3b1944008f7e
files src/register.c src/testdir/test_virtualedit.vim src/version.c
diffstat 3 files changed, 14 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/register.c
+++ b/src/register.c
@@ -1245,6 +1245,8 @@ op_yank(oparg_T *oap, int deleting, int 
 				// double-count it.
 				bd.startspaces = (ce - cs + 1)
 							  - oap->start.coladd;
+				if (bd.startspaces < 0)
+				    bd.startspaces = 0;
 				startcol++;
 			    }
 			}
--- a/src/testdir/test_virtualedit.vim
+++ b/src/testdir/test_virtualedit.vim
@@ -88,6 +88,16 @@ func Test_edit_change()
   set virtualedit=
 endfunc
 
+func Test_edit_special_char()
+  new
+  se ve=all
+  norm a0
+  sil! exe "norm o00000\<Nul>k<a0s"
+
+  bwipe!
+  set virtualedit=
+endfunc
+
 " Tests for pasting at the beginning, end and middle of a tab character
 " in virtual edit mode.
 func Test_paste_in_tab()
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1378,
+/**/
     1377,
 /**/
     1376,