Mercurial > vim
view runtime/ftplugin.vim @ 33862:242b964d6269 v9.0.2140
patch 9.0.2140: [security]: use-after-free in win-enter
Commit: https://github.com/vim/vim/commit/eec0c2b3a4cfab93dd8d4adaa60638d47a2bbc8a
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 28 22:03:48 2023 +0100
patch 9.0.2140: [security]: use-after-free in win-enter
Problem: [security]: use-after-free in win-enter
Solution: validate window pointer before calling win_enter()
win_goto() may stop visual mode, if it is active. However, this may in
turn trigger the ModeChanged autocommand, which could potentially free
the wp pointer which was valid before now became stale and points to now
freed memory.
So before calling win_enter(), let's verify one more time, that the
wp pointer still points to a valid window structure.
Reported by @henices, thanks!
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:01 +0100 |
parents | 4027cefc2aab |
children |
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vim9script noclear # Vim support file to switch on loading plugins for file types # # Maintainer: The Vim Project <https://github.com/vim/vim> # Last change: 2023 Aug 10 # Former Maintainer: Bram Moolenaar <Bram@vim.org> if exists("g:did_load_ftplugin") finish endif g:did_load_ftplugin = 1 augroup filetypeplugin au FileType * call LoadFTPlugin() augroup END if exists('*LoadFTPlugin') # No need to define the function again. finish endif def LoadFTPlugin() if exists("b:undo_ftplugin") # We assume b:undo_ftplugin is using legacy script syntax legacy exe b:undo_ftplugin unlet! b:undo_ftplugin b:did_ftplugin endif var s = expand("<amatch>") if s != "" if &cpo =~# "S" && exists("b:did_ftplugin") # In compatible mode options are reset to the global values, need to # set the local values also when a plugin was already used. unlet b:did_ftplugin endif # When there is a dot it is used to separate filetype names. Thus for # "aaa.bbb" load "aaa" and then "bbb". for name in split(s, '\.') exe 'runtime! ftplugin/' .. name .. '.vim ftplugin/' .. name .. '_*.vim ftplugin/' .. name .. '/*.vim' endfor endif enddef