Mercurial > vim
view runtime/delmenu.vim @ 33829:f0132690cdf9 v9.0.2129
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Commit: https://github.com/vim/vim/commit/a555069b7d790abedc60edc505bd35bda257949d
Author: mityu <mityu.mail@gmail.com>
Date: Sat Nov 25 15:41:20 2023 +0100
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Problem: [security]: use-after-free in call_dfunc()
Solution: Refresh dfunc pointer
closes: #13571
This Commit fixes a SEGV caused by a use-after-free bug in call_dfunc().
When calling check_ufunc_arg_types() from the call_dfunc() it may cause
def functions to be re-compiled and if there are too many def functions,
the def_functions array will be re-allocated. Which means, that the
dfunc pointer in call_dfunc() now starts pointing to freed memory.
So we need to reset the dfunc pointer after calling
check_ufunc_arg_types().
Let's also add a test, to ensure we do not regress.
Signed-off-by: mityu <mityu.mail@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 25 Nov 2023 16:00:03 +0100 |
| parents | 4027cefc2aab |
| children |
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" This Vim script deletes all the menus, so that they can be redefined. " Warning: This also deletes all menus defined by the user! " " Maintainer: The Vim Project <https://github.com/vim/vim> " Last Change: 2023 Aug 10 " Former Maintainer: Bram Moolenaar <Bram@vim.org> aunmenu * tlunmenu * if exists('#SetupLazyloadMenus') au! SetupLazyloadMenus augroup! SetupLazyloadMenus endif if exists('#buffer_list') au! buffer_list augroup! buffer_list endif if exists('#LoadBufferMenu') au! LoadBufferMenu augroup! LoadBufferMenu endif if exists('#spellmenu') au! spellmenu augroup! spellmenu endif if exists('#SpellPopupMenu') au! SpellPopupMenu augroup! SpellPopupMenu endif unlet! g:did_install_default_menus unlet! g:did_install_syntax_menu if exists('g:did_menu_trans') menutrans clear unlet g:did_menu_trans endif unlet! g:find_help_dialog unlet! g:menutrans_fileformat_choices unlet! g:menutrans_fileformat_dialog unlet! g:menutrans_help_dialog unlet! g:menutrans_no_file unlet! g:menutrans_path_dialog unlet! g:menutrans_set_lang_to unlet! g:menutrans_spell_add_ARG_to_word_list unlet! g:menutrans_spell_change_ARG_to unlet! g:menutrans_spell_ignore_ARG unlet! g:menutrans_tags_dialog unlet! g:menutrans_textwidth_dialog " vim: set sw=2 :