Mercurial > vim
view src/testdir/color_ramp.vim @ 33915:a49ae967e9ed v9.0.2158
patch 9.0.2158: [security]: use-after-free in check_argument_type
Commit: https://github.com/vim/vim/commit/0f28791b215bd4c22ed580839409c2f7d39d8140
Author: Christian Brabandt <cb@256bit.org>
Date: Mon Dec 11 17:53:25 2023 +0100
patch 9.0.2158: [security]: use-after-free in check_argument_type
Problem: [security]: use-after-free in check_argument_type
Solution: Reset function type pointer when freeing the function type
list
function pointer fp->uf_func_type may point to the same memory, that was
allocated for fp->uf_type_list. However, when cleaning up a function
definition (e.g. because it was invalid), fp->uf_type_list will be
freed, but fp->uf_func_type may still point to the same (now) invalid
memory address.
So when freeing the fp->uf_type_list, check if fp->func_type points to
any of those types and if it does, reset the fp->uf_func_type pointer to
the t_func_any (default) type pointer
closes: #13652
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Mon, 11 Dec 2023 18:00:03 +0100 |
parents | 89364104be93 |
children |
line wrap: on
line source
" Script to generate a file that shows al 256 xterm colors new let lnum = 1 " | in original color pair to see white background. let trail_bar = "\033[m|" " ANSI colors call setline(lnum, 'ANSI background') let lnum += 1 let s = '' for nr in range(0, 7) let s .= "\033[4" . nr . "m " endfor for nr in range(8, 15) let s .= "\033[10" . (nr - 8) . "m " endfor let s .= trail_bar call setline(lnum, s) let lnum += 1 " ANSI text colors call setline(lnum, 'ANSI text') let lnum += 1 let s = '' for nr in range(0, 7) let s .= "\033[0;3" . nr . "mxxxx" endfor for nr in range(8, 15) let s .= "\033[0;9" . (nr - 8) . "mxxxx" endfor let s .= trail_bar call setline(lnum, s) let lnum += 1 " ANSI with bold text call setline(lnum, 'ANSI bold text') let lnum += 1 let s = '' for nr in range(0, 7) let s .= "\033[1;3" . nr . "mxxxx" endfor for nr in range(8, 15) let s .= "\033[1;9" . (nr - 8) . "mxxxx" endfor let s .= trail_bar call setline(lnum, s) let lnum += 1 " 6 x 6 x 6 color cube call setline(lnum, 'color cube') let lnum += 1 for high in range(0, 5) let s = '' for low in range(0, 35) let nr = low + high * 36 let s .= "\033[48;5;" . (nr + 16) . "m " endfor let s .= trail_bar call setline(lnum + high, s) endfor let lnum += 6 " 24 shades of grey call setline(lnum, 'grey ramp') let lnum += 1 let s = '' for nr in range(0, 23) let s .= "\033[48;5;" . (nr + 232) . "m " endfor let s .= trail_bar call setline(lnum, s) set binary write! <sfile>:h/color_ramp.txt quit