Mercurial > vim
view runtime/ftplugin.vim @ 33915:a49ae967e9ed v9.0.2158
patch 9.0.2158: [security]: use-after-free in check_argument_type
Commit: https://github.com/vim/vim/commit/0f28791b215bd4c22ed580839409c2f7d39d8140
Author: Christian Brabandt <cb@256bit.org>
Date: Mon Dec 11 17:53:25 2023 +0100
patch 9.0.2158: [security]: use-after-free in check_argument_type
Problem: [security]: use-after-free in check_argument_type
Solution: Reset function type pointer when freeing the function type
list
function pointer fp->uf_func_type may point to the same memory, that was
allocated for fp->uf_type_list. However, when cleaning up a function
definition (e.g. because it was invalid), fp->uf_type_list will be
freed, but fp->uf_func_type may still point to the same (now) invalid
memory address.
So when freeing the fp->uf_type_list, check if fp->func_type points to
any of those types and if it does, reset the fp->uf_func_type pointer to
the t_func_any (default) type pointer
closes: #13652
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Mon, 11 Dec 2023 18:00:03 +0100 |
parents | 4027cefc2aab |
children |
line wrap: on
line source
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