Mercurial > vim
view runtime/syntax/config.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 | 167a030448fa |
| children |
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" Vim syntax file " Language: configure.in script: M4 with sh " Former Maintainer: Christian Hammesr <ch@lathspell.westend.com> " Last Change: 2018 Feb 03 " (patch from Yngve Inntjore Levinsen to detect AC_MSG) " (patch from Khym Chanur to add @Spell) " (patch from James McCoy to fix paren matching) " Well, I actually even do not know much about m4. This explains why there " is probably very much missing here, yet ! " But I missed good highlighting when editing my GNU autoconf/automake " script, so I wrote this quick and dirty patch. " quit when a syntax file was already loaded if exists("b:current_syntax") finish endif " define the config syntax syn match configdelimiter "[()\[\];,]" syn match configoperator "[=|&\*\+\<\>]" syn match configcomment "\(dnl.*\)\|\(#.*\)" contains=configDnl,@Spell syn match configfunction "\<[A-Z_][A-Z0-9_]*\>" syn match confignumber "[-+]\=\<\d\+\(\.\d*\)\=\>" syn keyword configDnl dnl contained syn keyword configkeyword if then else fi test for in do done syn keyword configspecial cat rm eval " This shortens the script, see syn-ext-match.. syn region configstring start=+\z(["'`]\)+ skip=+\\\z1+ end=+\z1+ contains=@Spell " Anything inside AC_MSG_TYPE([...]) and AC_MSG_TYPE(...) is a string. syn region configmsg matchgroup=configfunction start="AC_MSG_[A-Z]*\ze(\[" matchgroup=configdelimiter end="\])" contains=configdelimiter,@Spell syn region configmsg matchgroup=configfunction start="AC_MSG_[A-Z]*\ze([^[]" matchgroup=configdelimiter end=")" contains=configdelimiter,@Spell " Define the default highlighting. " Only when an item doesn't have highlighting yet hi def link configdelimiter Delimiter hi def link configoperator Operator hi def link configcomment Comment hi def link configDnl Comment hi def link configfunction Function hi def link confignumber Number hi def link configkeyword Keyword hi def link configspecial Special hi def link configstring String hi def link configmsg String let b:current_syntax = "config" " vim: ts=4