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
line wrap: on
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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 :