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patch 9.0.1143: invalid memory access with bad 'statusline' value

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Problem:    Invalid memory access with bad 'statusline' value.
Solution:   Avoid going over the NUL at the end.
This commit is contained in:
Bram Moolenaar 2023-01-04 14:31:49 +00:00
parent f057171d8b
commit 7b17eb4b06
3 changed files with 11 additions and 0 deletions
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2
src/buffer.c
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@ -4617,6 +4617,8 @@ build_stl_str_hl(
#endif
if (vim_strchr(STL_ALL, *s) == NULL)
{
if (*s == NUL) // can happen with "%0"
break;
s++;
continue;
}

7
src/testdir/test_statusline.vim
View File

@ -440,6 +440,13 @@ func Test_statusline()
set splitbelow&
endfunc
func Test_statusline_trailing_percent_zero()
" this was causing illegal memory access
set laststatus=2 stl=%!%0
call assert_fails('redraw', 'E15: Invalid expression: "%0"')
set laststatus& stl&
endfunc
func Test_statusline_visual()
func CallWordcount()
call wordcount()

2
src/version.c
View File

@ -695,6 +695,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1143,
/**/
1142,
/**/