From dc5490e2cbc8c16022a23b449b48c1bd0083f366 Mon Sep 17 00:00:00 2001

From: Bram Moolenaar <Bram@vim.org>

Date: Tue, 25 Jan 2022 13:52:53 +0000

Subject: [PATCH] patch 8.2.4215: illegal memory access when copying lines in

 Visual mode

Problem:    Illegal memory access when copying lines in Visual mode.

Solution:   Adjust the Visual position after copying lines.

---

 src/ex_cmds.c               |  2 ++

 src/testdir/test_visual.vim | 11 +++++++++++

 src/version.c               |  2 ++

 3 files changed, 15 insertions(+)

diff --git a/src/ex_cmds.c b/src/ex_cmds.c

index 95209985e..f5d93e664 100644

--- a/src/ex_cmds.c

+++ b/src/ex_cmds.c

@@ -866,6 +866,8 @@ ex_copy(linenr_T line1, linenr_T line2, linenr_T n)

     }

     appended_lines_mark(n, count);

+    if (VIsual_active)

+	check_pos(curbuf, &VIsual);

     msgmore((long)count);

 }

diff --git a/src/testdir/test_visual.vim b/src/testdir/test_visual.vim

index 72f5388b9..9b322fd21 100644

--- a/src/testdir/test_visual.vim

+++ b/src/testdir/test_visual.vim

@@ -1328,5 +1328,16 @@ func Test_visual_exchange_windows()

   bwipe!

 endfunc

+" this was leaving the end of the Visual area beyond the end of a line

+func Test_visual_ex_copy_line()

+  new

+  call setline(1, ["aaa", "bbbbbbbbbxbb"])

+  /x

+  exe "normal ggvjfxO"

+  t0

+  normal gNU

+  bwipe!

+endfunc

+

 " vim: shiftwidth=2 sts=2 expandtab

-- 

2.34.1