vim/backport-CVE-2022-1619.patch

54 lines
1.5 KiB
Diff

From ef02f16609ff0a26ffc6e20263523424980898fe Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 7 May 2022 10:49:10 +0100
Subject: [PATCH] patch 8.2.4899: with latin1 encoding CTRL-W might go before
the cmdline
Problem: With latin1 encoding CTRL-W might go before the start of the
command line.
Solution: Check already being at the start of the command line.
---
src/ex_getln.c | 11 +++++++----
src/testdir/test_cmdline.vim | 3 +++
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 68b4757..771a9cd 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -1583,10 +1583,13 @@ getcmdline_int(
{
while (p > ccline.cmdbuff && vim_isspace(p[-1]))
--p;
- i = vim_iswordc(p[-1]);
- while (p > ccline.cmdbuff && !vim_isspace(p[-1])
- && vim_iswordc(p[-1]) == i)
- --p;
+ if (p > ccline.cmdbuff)
+ {
+ i = vim_iswordc(p[-1]);
+ while (p > ccline.cmdbuff && !vim_isspace(p[-1])
+ && vim_iswordc(p[-1]) == i)
+ --p;
+ }
}
else
--p;
diff --git a/src/testdir/test_cmdline.vim b/src/testdir/test_cmdline.vim
index cbf7986..1ccdbe2 100644
--- a/src/testdir/test_cmdline.vim
+++ b/src/testdir/test_cmdline.vim
@@ -476,6 +476,9 @@ func Test_cmdline_remove_char()
call feedkeys(":abc def\<S-Left>\<C-U>\<C-B>\"\<CR>", 'tx')
call assert_equal('"def', @:, e)
+
+ " This was going before the start in latin1.
+ call feedkeys(": \<C-W>\<CR>", 'tx')
endfor
let &encoding = encoding_save
--
1.8.3.1