# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1672843505 -3600
# Node ID 1102f477751855dcfea3df65691add201325eb62
# Parent  039dcfd1ee948b4d057d4604d76e38e1f5ecb698
patch 9.0.1143: invalid memory access with bad 'statusline' value

Commit: https://github.com/vim/vim/commit/7b17eb4b063a234376c1ec909ee293e42cff290c
Author: Bram Moolenaar <Bram@vim.org>
Date:   Wed Jan 4 14:31:49 2023 +0000

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

    Problem:    Invalid memory access with bad 'statusline' value.
    Solution:   Avoid going over the NUL at the end.

diff --git a/src/buffer.c b/src/buffer.c
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -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;
 	}
diff --git a/src/testdir/test_statusline.vim b/src/testdir/test_statusline.vim
--- a/src/testdir/test_statusline.vim
+++ b/src/testdir/test_statusline.vim
@@ -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()
diff --git a/src/version.c b/src/version.c
--- 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 */
 /**/
+    1143,
+/**/
     1142,
 /**/
     1141,