Mercurial > vim
view runtime/syntax/changelog.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 | 46763b01cd9a |
| children |
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" Vim syntax file " Language: generic ChangeLog file " Written By: Gediminas Paulauskas <menesis@delfi.lt> " Maintainer: Corinna Vinschen <vinschen@redhat.com> " Last Change: June 1, 2003 " quit when a syntax file was already loaded if exists("b:current_syntax") finish endif syn case ignore if exists('b:changelog_spacing_errors') let s:spacing_errors = b:changelog_spacing_errors elseif exists('g:changelog_spacing_errors') let s:spacing_errors = g:changelog_spacing_errors else let s:spacing_errors = 1 endif if s:spacing_errors syn match changelogError "^ \+" endif syn match changelogText "^\s.*$" contains=changelogMail,changelogNumber,changelogMonth,changelogDay,changelogError syn match changelogHeader "^\S.*$" contains=changelogNumber,changelogMonth,changelogDay,changelogMail syn region changelogFiles start="^\s\+[+*]\s" end=":" end="^$" contains=changelogBullet,changelogColon,changelogFuncs,changelogError keepend syn region changelogFiles start="^\s\+[([]" end=":" end="^$" contains=changelogBullet,changelogColon,changelogFuncs,changelogError keepend syn match changelogFuncs contained "(.\{-})" extend syn match changelogFuncs contained "\[.\{-}]" extend syn match changelogColon contained ":" syn match changelogBullet contained "^\s\+[+*]\s" contains=changelogError syn match changelogMail contained "<[A-Za-z0-9\._:+-]\+@[A-Za-z0-9\._-]\+>" syn keyword changelogMonth contained jan feb mar apr may jun jul aug sep oct nov dec syn keyword changelogDay contained mon tue wed thu fri sat sun syn match changelogNumber contained "[.-]*[0-9]\+" " Define the default highlighting. " Only when an item doesn't have highlighting yet hi def link changelogText Normal hi def link changelogBullet Type hi def link changelogColon Type hi def link changelogFiles Comment hi def link changelogFuncs Comment hi def link changelogHeader Statement hi def link changelogMail Special hi def link changelogNumber Number hi def link changelogMonth Number hi def link changelogDay Number hi def link changelogError Folded let b:current_syntax = "changelog" " vim: ts=8