Mercurial > vim
view runtime/syntax/bdf.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 | 1218c5353e2b |
| children |
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" Vim syntax file " Language: BDF font definition " Previous Maintainer: Nikolai Weibull <now@bitwi.se> " Latest Revision: 2006-04-19 if exists("b:current_syntax") finish endif let s:cpo_save = &cpo set cpo&vim syn region bdfFontDefinition transparent matchgroup=bdfKeyword \ start='^STARTFONT\>' end='^ENDFONT\>' \ contains=bdfComment,bdfFont,bdfSize, \ bdfBoundingBox,bdfProperties,bdfChars,bdfChar syn match bdfNumber contained display \ '\<\%(\x\+\|[+-]\=\d\+\%(\.\d\+\)*\)' syn keyword bdfTodo contained FIXME TODO XXX NOTE syn region bdfComment contained start='^COMMENT\>' end='$' \ contains=bdfTodo,@Spell syn region bdfFont contained matchgroup=bdfKeyword \ start='^FONT\>' end='$' syn region bdfSize contained transparent matchgroup=bdfKeyword \ start='^SIZE\>' end='$' contains=bdfNumber syn region bdfBoundingBox contained transparent matchgroup=bdfKeyword \ start='^FONTBOUNDINGBOX' end='$' \ contains=bdfNumber syn region bdfProperties contained transparent matchgroup=bdfKeyword \ start='^STARTPROPERTIES' end='^ENDPROPERTIES' \ contains=bdfNumber,bdfString,bdfProperty, \ bdfXProperty syn keyword bdfProperty contained FONT_ASCENT FONT_DESCENT DEFAULT_CHAR syn match bdfProperty contained '^\S\+' syn keyword bdfXProperty contained FONT_ASCENT FONT_DESCENT DEFAULT_CHAR \ FONTNAME_REGISTRY FOUNDRY FAMILY_NAME \ WEIGHT_NAME SLANT SETWIDTH_NAME PIXEL_SIZE \ POINT_SIZE RESOLUTION_X RESOLUTION_Y SPACING \ CHARSET_REGISTRY CHARSET_ENCODING COPYRIGHT \ ADD_STYLE_NAME WEIGHT RESOLUTION X_HEIGHT \ QUAD_WIDTH FONT AVERAGE_WIDTH syn region bdfString contained start=+"+ skip=+""+ end=+"+ syn region bdfChars contained display transparent \ matchgroup=bdfKeyword start='^CHARS' end='$' \ contains=bdfNumber syn region bdfChar transparent matchgroup=bdfKeyword \ start='^STARTCHAR' end='^ENDCHAR' \ contains=bdfEncoding,bdfWidth,bdfAttributes, \ bdfBitmap syn region bdfEncoding contained transparent matchgroup=bdfKeyword \ start='^ENCODING' end='$' contains=bdfNumber syn region bdfWidth contained transparent matchgroup=bdfKeyword \ start='^SWIDTH\|DWIDTH\|BBX' end='$' \ contains=bdfNumber syn region bdfAttributes contained transparent matchgroup=bdfKeyword \ start='^ATTRIBUTES' end='$' syn keyword bdfBitmap contained BITMAP if exists("bdf_minlines") let b:bdf_minlines = bdf_minlines else let b:bdf_minlines = 30 endif exec "syn sync ccomment bdfChar minlines=" . b:bdf_minlines hi def link bdfKeyword Keyword hi def link bdfNumber Number hi def link bdfTodo Todo hi def link bdfComment Comment hi def link bdfFont String hi def link bdfProperty Identifier hi def link bdfXProperty Identifier hi def link bdfString String hi def link bdfChars Keyword hi def link bdfBitmap Keyword let b:current_syntax = "bdf" let &cpo = s:cpo_save unlet s:cpo_save