Mercurial > vim
view src/installman.sh @ 33862:242b964d6269 v9.0.2140
patch 9.0.2140: [security]: use-after-free in win-enter
Commit: https://github.com/vim/vim/commit/eec0c2b3a4cfab93dd8d4adaa60638d47a2bbc8a
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 28 22:03:48 2023 +0100
patch 9.0.2140: [security]: use-after-free in win-enter
Problem: [security]: use-after-free in win-enter
Solution: validate window pointer before calling win_enter()
win_goto() may stop visual mode, if it is active. However, this may in
turn trigger the ModeChanged autocommand, which could potentially free
the wp pointer which was valid before now became stale and points to now
freed memory.
So before calling win_enter(), let's verify one more time, that the
wp pointer still points to a valid window structure.
Reported by @henices, thanks!
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:01 +0100 |
parents | a7b8f78dd868 |
children |
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#! /bin/sh # installman.sh --- install or uninstall manpages for Vim # # arguments: # 1 what: "install", "uninstall" or "xxd" # 2 target directory e.g., "/usr/local/man/it/man1" # 3 language addition e.g., "" or "-it" # 4 vim location as used in manual pages e.g., "/usr/local/share/vim" # 5 runtime dir for menu.vim et al. e.g., "/usr/local/share/vim/vim81" # 6 runtime dir for global vimrc file e.g., "/usr/local/share/vim" # 7 source dir for help files e.g., "../runtime/doc" # 8 mode bits for manpages e.g., "644" # 9 vim exe name e.g., "vim" # 10 name of vimdiff exe e.g., "vimdiff" # 11 name of evim exe e.g., "evim" errstatus=0 what=$1 destdir=$2 langadd=$3 vimloc=$4 scriptloc=$5 vimrcloc=$6 helpsource=$7 manmod=$8 exename=$9 # older shells don't support ${10} shift vimdiffname=$9 shift evimname=$9 helpsubloc=$scriptloc/doc printsubloc=$scriptloc/print synsubloc=$scriptloc/syntax tutorsubloc=$scriptloc/tutor if test $what = "install" -o $what = "xxd"; then if test ! -d $destdir; then echo creating $destdir /bin/sh install-sh -c -d $destdir chmod 755 $destdir fi fi # Note: setting LC_ALL to C is required to avoid illegal byte errors from sed # on some systems. if test $what = "install"; then # vim.1 if test -r $helpsource/vim$langadd.1; then echo installing $destdir/$exename.1 LC_ALL=C sed -e s+/usr/local/lib/vim+$vimloc+ \ -e s+$vimloc/doc+$helpsubloc+ \ -e s+$vimloc/print+$printsubloc+ \ -e s+$vimloc/syntax+$synsubloc+ \ -e s+$vimloc/tutor+$tutorsubloc+ \ -e s+$vimloc/vimrc+$vimrcloc/vimrc+ \ -e s+$vimloc/gvimrc+$vimrcloc/gvimrc+ \ -e s+$vimloc/menu.vim+$scriptloc/menu.vim+ \ -e s+$vimloc/bugreport.vim+$scriptloc/bugreport.vim+ \ -e s+$vimloc/filetype.vim+$scriptloc/filetype.vim+ \ -e s+$vimloc/scripts.vim+$scriptloc/scripts.vim+ \ -e s+$vimloc/optwin.vim+$scriptloc/optwin.vim+ \ -e 's+$vimloc/\*.ps+$scriptloc/\*.ps+' \ $helpsource/vim$langadd.1 > $destdir/$exename.1 chmod $manmod $destdir/$exename.1 fi # vimtutor.1 if test -r $helpsource/vimtutor$langadd.1; then echo installing $destdir/$exename""tutor.1 LC_ALL=C sed -e s+/usr/local/lib/vim+$vimloc+ \ -e s+$vimloc/tutor+$tutorsubloc+ \ $helpsource/vimtutor$langadd.1 > $destdir/$exename""tutor.1 chmod $manmod $destdir/$exename""tutor.1 fi # vimdiff.1 if test -r $helpsource/vimdiff$langadd.1; then echo installing $destdir/$vimdiffname.1 cp $helpsource/vimdiff$langadd.1 $destdir/$vimdiffname.1 chmod $manmod $destdir/$vimdiffname.1 fi # evim.1 if test -r $helpsource/evim$langadd.1; then echo installing $destdir/$evimname.1 LC_ALL=C sed -e s+/usr/local/lib/vim+$vimloc+ \ -e s+$vimloc/evim.vim+$scriptloc/evim.vim+ \ $helpsource/evim$langadd.1 > $destdir/$evimname.1 chmod $manmod $destdir/$evimname.1 fi fi if test $what = "uninstall"; then echo Checking for Vim manual pages in $destdir... if test -r $destdir/$exename.1; then echo deleting $destdir/$exename.1 rm -f $destdir/$exename.1 fi if test -r $destdir/$exename""tutor.1; then echo deleting $destdir/$exename""tutor.1 rm -f $destdir/$exename""tutor.1 fi if test -r $destdir/$vimdiffname.1; then echo deleting $destdir/$vimdiffname.1 rm -f $destdir/$vimdiffname.1 fi if test -r $destdir/$evimname.1; then echo deleting $destdir/$evimname.1 rm -f $destdir/$evimname.1 fi fi if test $what = "xxd" -a -r "$helpsource/xxd${langadd}.1"; then echo installing $destdir/xxd.1 cp $helpsource/xxd$langadd.1 $destdir/xxd.1 chmod $manmod $destdir/xxd.1 fi exit $errstatus # vim: set sw=3 sts=3 :