Mercurial > vim
view runtime/syntax/README.txt @ 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 | 1b2730ece70e |
children |
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This directory contains Vim scripts for syntax highlighting. These scripts are not for a language, but are used by Vim itself: syntax.vim Used for the ":syntax on" command. Uses synload.vim. manual.vim Used for the ":syntax manual" command. Uses synload.vim. synload.vim Contains autocommands to load a language file when a certain file name (extension) is used. And sets up the Syntax menu for the GUI. nosyntax.vim Used for the ":syntax off" command. Undo the loading of synload.vim. The "shared" directory contains generated files and what is used by more than one syntax. A few special files: 2html.vim Converts any highlighted file to HTML (GUI only). colortest.vim Check for color names and actual color on screen. hitest.vim View the current highlight settings. whitespace.vim View Tabs and Spaces. If you want to write a syntax file, read the docs at ":help usr_44.txt". If you make a new syntax file which would be useful for others, please send it to the vim-dev mailing list <vim-dev@vim.org>. Include instructions for detecting the file type for this language, by file name extension or by checking a few lines in the file. And please write the file in a portable way, see ":help 44.12". If you have remarks about an existing file, send them to the maintainer of that file. Only when you get no response send a message to the vim-dev mailing list: <vim-dev@vim.org>. If you are the maintainer of a syntax file and make improvements, send the new version to the vim-dev mailing list: <vim-dev@vim.org> For further info see ":help syntax" in Vim.