Mercurial > vim
view src/installml.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 | 3f399c28e4af |
children |
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#! /bin/sh # installml.sh --- install or uninstall manpage links for Vim # # arguments: # 1 what: "install" or "uninstall" # 2 also do GUI pages: "yes" or "" # 3 target directory e.g., "/usr/local/man/it/man1" # 4 vim exe name e.g., "vim" # 5 vimdiff exe name e.g., "vimdiff" # 6 evim exe name e.g., "evim" # 7 ex exe name e.g., "ex" # 8 view exe name e.g., "view" # 9 rvim exe name e.g., "rvim" # 10 rview exe name e.g., "rview" # 11 gvim exe name e.g., "gvim" # 12 gview exe name e.g., "gview" # 13 rgvim exe name e.g., "rgvim" # 14 rgview exe name e.g., "rgview" # 15 gvimdiff exe name e.g., "gvimdiff" # 16 eview exe name e.g., "eview" errstatus=0 what=$1 gui=$2 destdir=$3 vimname=$4 vimdiffname=$5 evimname=$6 exname=$7 viewname=$8 rvimname=$9 # old shells don't understand ${10} shift rviewname=$9 shift gvimname=$9 shift gviewname=$9 shift rgvimname=$9 shift rgviewname=$9 shift gvimdiffname=$9 shift eviewname=$9 if test $what = "install" -a \( -f $destdir/$vimname.1 -o -f $destdir/$vimdiffname.1 -o -f $destdir/$eviewname.1 \); then if test ! -d $destdir; then echo creating $destdir /bin/sh install-sh -c -d $destdir fi # ex if test ! -f $destdir/$exname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$exname.1 cd $destdir; ln -s $vimname.1 $exname.1 fi # view if test ! -f $destdir/$viewname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$viewname.1 cd $destdir; ln -s $vimname.1 $viewname.1 fi # rvim if test ! -f $destdir/$rvimname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$rvimname.1 cd $destdir; ln -s $vimname.1 $rvimname.1 fi # rview if test ! -f $destdir/$rviewname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$rviewname.1 cd $destdir; ln -s $vimname.1 $rviewname.1 fi # GUI targets are optional if test "$gui" = "yes"; then # gvim if test ! -f $destdir/$gvimname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$gvimname.1 cd $destdir; ln -s $vimname.1 $gvimname.1 fi # gview if test ! -f $destdir/$gviewname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$gviewname.1 cd $destdir; ln -s $vimname.1 $gviewname.1 fi # rgvim if test ! -f $destdir/$rgvimname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$rgvimname.1 cd $destdir; ln -s $vimname.1 $rgvimname.1 fi # rgview if test ! -f $destdir/$rgviewname.1 -a -f $destdir/$vimname.1; then echo creating link $destdir/$rgviewname.1 cd $destdir; ln -s $vimname.1 $rgviewname.1 fi # gvimdiff if test ! -f $destdir/$gvimdiffname.1 -a -f $destdir/$vimdiffname.1; then echo creating link $destdir/$gvimdiffname.1 cd $destdir; ln -s $vimdiffname.1 $gvimdiffname.1 fi # eview if test ! -f $destdir/$eviewname.1 -a -f $destdir/$evimname.1; then echo creating link $destdir/$eviewname.1 cd $destdir; ln -s $evimname.1 $eviewname.1 fi fi fi if test $what = "uninstall"; then echo Checking for Vim manual page links in $destdir... if test -L $destdir/$exname.1; then echo deleting $destdir/$exname.1 rm -f $destdir/$exname.1 fi if test -L $destdir/$viewname.1; then echo deleting $destdir/$viewname.1 rm -f $destdir/$viewname.1 fi if test -L $destdir/$rvimname.1; then echo deleting $destdir/$rvimname.1 rm -f $destdir/$rvimname.1 fi if test -L $destdir/$rviewname.1; then echo deleting $destdir/$rviewname.1 rm -f $destdir/$rviewname.1 fi # GUI targets are optional if test "$gui" = "yes"; then if test -L $destdir/$gvimname.1; then echo deleting $destdir/$gvimname.1 rm -f $destdir/$gvimname.1 fi if test -L $destdir/$gviewname.1; then echo deleting $destdir/$gviewname.1 rm -f $destdir/$gviewname.1 fi if test -L $destdir/$rgvimname.1; then echo deleting $destdir/$rgvimname.1 rm -f $destdir/$rgvimname.1 fi if test -L $destdir/$rgviewname.1; then echo deleting $destdir/$rgviewname.1 rm -f $destdir/$rgviewname.1 fi if test -L $destdir/$gvimdiffname.1; then echo deleting $destdir/$gvimdiffname.1 rm -f $destdir/$gvimdiffname.1 fi if test -L $destdir/$eviewname.1; then echo deleting $destdir/$eviewname.1 rm -f $destdir/$eviewname.1 fi fi fi exit $errstatus # vim: set sw=3 :