Mercurial > vim
view src/installml.sh @ 33879:d418c82f02a4 v9.0.2149
patch 9.0.2149: [security]: use-after-free in exec_instructions()
Commit: https://github.com/vim/vim/commit/5dd41d4b6370b7b7d09d691f9252b3899c66102a
Author: Christian Brabandt <cb@256bit.org>
Date: Mon Dec 4 22:52:23 2023 +0100
patch 9.0.2149: [security]: use-after-free in exec_instructions()
Problem: [security]: use-after-free in exec_instructions()
Solution: get tv pointer again
[security]: use-after-free in exec_instructions()
exec_instructions may access freed memory, if the GA_GROWS_FAILS()
re-allocates memory. When this happens, the typval tv may still point to
now already freed memory. So let's get that pointer again and compare it
with tv. If those two pointers differ, tv is now invalid and we have to
refresh the tv pointer.
closes: #13621
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:17 +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 :