Mercurial > vim
view runtime/indent/rrst.vim @ 33829:f0132690cdf9 v9.0.2129
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Commit: https://github.com/vim/vim/commit/a555069b7d790abedc60edc505bd35bda257949d
Author: mityu <mityu.mail@gmail.com>
Date: Sat Nov 25 15:41:20 2023 +0100
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Problem: [security]: use-after-free in call_dfunc()
Solution: Refresh dfunc pointer
closes: #13571
This Commit fixes a SEGV caused by a use-after-free bug in call_dfunc().
When calling check_ufunc_arg_types() from the call_dfunc() it may cause
def functions to be re-compiled and if there are too many def functions,
the def_functions array will be re-allocated. Which means, that the
dfunc pointer in call_dfunc() now starts pointing to freed memory.
So we need to reset the dfunc pointer after calling
check_ufunc_arg_types().
Let's also add a test, to ensure we do not regress.
Signed-off-by: mityu <mityu.mail@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sat, 25 Nov 2023 16:00:03 +0100 |
parents | b2412874362f |
children | 02bd0fe77c68 |
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" Vim indent file " Language: Rrst " Author: Jakson Alves de Aquino <jalvesaq@gmail.com> " Homepage: https://github.com/jalvesaq/R-Vim-runtime " Last Change: Feb 25, 2023 " Only load this indent file when no other was loaded. if exists("b:did_indent") finish endif runtime indent/r.vim let s:RIndent = function(substitute(&indentexpr, "()", "", "")) let b:did_indent = 1 setlocal indentkeys=0{,0},:,!^F,o,O,e setlocal indentexpr=GetRrstIndent() let b:undo_indent = "setl inde< indk<" if exists("*GetRrstIndent") finish endif function GetRstIndent() let pline = getline(v:lnum - 1) let cline = getline(v:lnum) if prevnonblank(v:lnum - 1) < v:lnum - 1 || cline =~ '^\s*[-\+\*]\s' || cline =~ '^\s*\d\+\.\s\+' return indent(v:lnum) elseif pline =~ '^\s*[-\+\*]\s' return indent(v:lnum - 1) + 2 elseif pline =~ '^\s*\d\+\.\s\+' return indent(v:lnum - 1) + 3 endif return indent(prevnonblank(v:lnum - 1)) endfunction function GetRrstIndent() if getline(".") =~ '^\.\. {r .*}$' || getline(".") =~ '^\.\. \.\.$' return 0 endif if search('^\.\. {r', "bncW") > search('^\.\. \.\.$', "bncW") return s:RIndent() else return GetRstIndent() endif endfunction " vim: sw=2