Mercurial > vim
view runtime/scripts.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 | 262904befd18 |
children |
line wrap: on
line source
" Vim support file to detect file types in scripts " " Maintainer: The Vim Project <https://github.com/vim/vim> " Last Change: 2023 Aug 27 " Former Maintainer: Bram Moolenaar <Bram@vim.org> " This file is called by an autocommand for every file that has just been " loaded into a buffer. It checks if the type of file can be recognized by " the file contents. The autocommand is in $VIMRUNTIME/filetype.vim. " Bail out when a FileType autocommand has already set the filetype. if did_filetype() finish endif " Load the user defined scripts file first " Only do this when the FileType autocommand has not been triggered yet if exists("myscriptsfile") && filereadable(expand(myscriptsfile)) execute "source " . myscriptsfile if did_filetype() finish endif endif " The main code is in a compiled function for speed. call dist#script#DetectFiletype()