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authorBram Moolenaar <Bram@vim.org>2023-03-03 21:11:52 +0000
committerBram Moolenaar <Bram@vim.org>2023-03-03 21:11:52 +0000
commit1c73b65229c25e3c1fd8824ba958f7cc4d604f9c (patch)
tree7608152b1c557f616b3f14e277d2d701c45faf45
parentf77a7f704ffd0ca1050e82f609c8b8bd61863277 (diff)
downloadvim-git-1c73b65229c25e3c1fd8824ba958f7cc4d604f9c.tar.gz
patch 9.0.1376: accessing invalid memory with put in Visual block modev9.0.1376
Problem: Accessing invalid memory with put in Visual block mode. Solution: Adjust the cursor column if needed.
-rw-r--r--src/register.c11
-rw-r--r--src/testdir/test_put.vim11
-rw-r--r--src/version.c2
3 files changed, 23 insertions, 1 deletions
diff --git a/src/register.c b/src/register.c
index 4dc0a68fd..461363be3 100644
--- a/src/register.c
+++ b/src/register.c
@@ -1928,7 +1928,7 @@ do_put(
ptr += yanklen;
// insert block's trailing spaces only if there's text behind
- if ((j < count - 1 || !shortline) && spaces)
+ if ((j < count - 1 || !shortline) && spaces > 0)
{
vim_memset(ptr, ' ', (size_t)spaces);
ptr += spaces;
@@ -2284,6 +2284,15 @@ error:
msgmore(nr_lines);
curwin->w_set_curswant = TRUE;
+ // Make sure the cursor is not after the NUL.
+ int len = (int)STRLEN(ml_get_curline());
+ if (curwin->w_cursor.col > len)
+ {
+ if (cur_ve_flags == VE_ALL)
+ curwin->w_cursor.coladd = curwin->w_cursor.col - len;
+ curwin->w_cursor.col = len;
+ }
+
end:
if (cmdmod.cmod_flags & CMOD_LOCKMARKS)
{
diff --git a/src/testdir/test_put.vim b/src/testdir/test_put.vim
index 66438bd3f..a6cea74ef 100644
--- a/src/testdir/test_put.vim
+++ b/src/testdir/test_put.vim
@@ -231,5 +231,16 @@ func Test_put_visual_mode()
set selection&
endfunc
+func Test_put_visual_block_mode()
+ enew
+ exe "norm 0R\<CR>\<C-C>V"
+ sil exe "norm \<C-V>c \<MiddleDrag>"
+ set ve=all
+ sil norm vz=p
+
+ bwipe!
+ set ve=
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index 8f26bdf47..022b9ffe8 100644
--- 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 */
/**/
+ 1376,
+/**/
1375,
/**/
1374,