Mercurial > vim
view runtime/syntax/dep3patch.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 | cc751d944b7e |
| children |
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" Vim syntax file " Language: Debian DEP3 Patch headers " Maintainer: Gabriel Filion <gabster@lelutin.ca> " Last Change: 2023 Jan 16 " URL: https://salsa.debian.org/vim-team/vim-debian/blob/main/syntax/dep3patch.vim " " Specification of the DEP3 patch header format is available at: " https://dep-team.pages.debian.net/deps/dep3/ " Standard syntax initialization if exists('b:current_syntax') finish endif runtime! syntax/diff.vim unlet! b:current_syntax let s:cpo_save = &cpo set cpo&vim syn region dep3patchHeaders start="\%^" end="^\%(---\)\@=" contains=dep3patchKey,dep3patchMultiField syn case ignore syn region dep3patchMultiField matchgroup=dep3patchKey start="^\%(Description\|Subject\)\ze: *" skip="^[ \t]" end="^$"me=s-1 end="^[^ \t#]"me=s-1 contained contains=@Spell syn region dep3patchMultiField matchgroup=dep3patchKey start="^Origin\ze: *" end="$" contained contains=dep3patchHTTPUrl,dep3patchCommitID,dep3patchOriginCategory oneline keepend syn region dep3patchMultiField matchgroup=dep3patchKey start="^Bug\%(-[[:graph:]]\+\)\?\ze: *" end="$" contained contains=dep3patchHTTPUrl oneline keepend syn region dep3patchMultiField matchgroup=dep3patchKey start="^Forwarded\ze: *" end="$" contained contains=dep3patchHTTPUrl,dep3patchForwardedShort oneline keepend syn region dep3patchMultiField matchgroup=dep3patchKey start="^\%(Author\|From\)\ze: *" end="$" contained contains=dep3patchEmail oneline keepend syn region dep3patchMultiField matchgroup=dep3patchKey start="^\%(Reviewed-by\|Acked-by\)\ze: *" end="$" contained contains=dep3patchEmail oneline keepend syn region dep3patchMultiField matchgroup=dep3patchKey start="^Last-Update\ze: *" end="$" contained contains=dep3patchISODate oneline keepend syn region dep3patchMultiField matchgroup=dep3patchKey start="^Applied-Upstream\ze: *" end="$" contained contains=dep3patchHTTPUrl,dep3patchCommitID oneline keepend syn match dep3patchHTTPUrl contained "\vhttps?://[[:alnum:]][-[:alnum:]]*[[:alnum:]]?(\.[[:alnum:]][-[:alnum:]]*[[:alnum:]]?)*\.[[:alpha:]][-[:alnum:]]*[[:alpha:]]?(:\d+)?(/[^[:space:]]*)?$" syn match dep3patchCommitID contained "commit:[[:alnum:]]\+" syn match dep3patchOriginCategory contained "\%(upstream\|backport\|vendor\|other\), " syn match dep3patchForwardedShort contained "\%(yes\|no\|not-needed\), " syn match dep3patchEmail "[_=[:alnum:]\.+-]\+@[[:alnum:]\./\-]\+" syn match dep3patchEmail "<.\{-}>" syn match dep3patchISODate "[[:digit:]]\{4}-[[:digit:]]\{2}-[[:digit:]]\{2}" " Associate our matches and regions with pretty colours hi def link dep3patchKey Keyword hi def link dep3patchOriginCategory Keyword hi def link dep3patchForwardedShort Keyword hi def link dep3patchMultiField Normal hi def link dep3patchHTTPUrl Identifier hi def link dep3patchCommitID Identifier hi def link dep3patchEmail Identifier hi def link dep3patchISODate Identifier let b:current_syntax = 'dep3patch' let &cpo = s:cpo_save unlet s:cpo_save " vim: ts=8 sw=2