Mercurial > vim
view runtime/vimrc_example.vim @ 33776:9503dc55b5ed v9.0.2108
patch 9.0.2108: [security]: overflow with count for :s command
Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 14 20:45:48 2023 +0100
patch 9.0.2108: [security]: overflow with count for :s command
Problem: [security]: overflow with count for :s command
Solution: Abort the :s command if the count is too large
If the count after the :s command is larger than what fits into a
(signed) long variable, abort with e_value_too_large.
Adds a test with INT_MAX as count and verify it correctly fails.
It seems the return value on Windows using mingw compiler wraps around,
so the initial test using :s/./b/9999999999999999999999999990 doesn't
fail there, since the count is wrapping around several times and finally
is no longer larger than 2147483647. So let's just use 2147483647 in the
test, which hopefully will always cause a failure
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 16 Nov 2023 22:15:10 +0100 |
parents | 4027cefc2aab |
children |
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" An example for a vimrc file. " " Maintainer: The Vim Project <https://github.com/vim/vim> " Last Change: 2023 Aug 10 " Former Maintainer: Bram Moolenaar <Bram@vim.org> " " To use it, copy it to " for Unix: ~/.vimrc " for Amiga: s:.vimrc " for MS-Windows: $VIM\_vimrc " for Haiku: ~/config/settings/vim/vimrc " for OpenVMS: sys$login:.vimrc " When started as "evim", evim.vim will already have done these settings, bail " out. if v:progname =~? "evim" finish endif " Get the defaults that most users want. source $VIMRUNTIME/defaults.vim if has("vms") set nobackup " do not keep a backup file, use versions instead else set backup " keep a backup file (restore to previous version) if has('persistent_undo') set undofile " keep an undo file (undo changes after closing) endif endif if &t_Co > 2 || has("gui_running") " Switch on highlighting the last used search pattern. set hlsearch endif " Put these in an autocmd group, so that we can delete them easily. augroup vimrcEx au! " For all text files set 'textwidth' to 78 characters. autocmd FileType text setlocal textwidth=78 augroup END " Add optional packages. " " The matchit plugin makes the % command work better, but it is not backwards " compatible. " The ! means the package won't be loaded right away but when plugins are " loaded during initialization. if has('syntax') && has('eval') packadd! matchit endif