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>

" Test :version Ex command

so check.vim
so shared.vim

func Test_version()
  " version should always return the same string.
  let v1 = execute('version')
  let v2 = execute('version')
  call assert_equal(v1, v2)

  call assert_match("^\n\nVIM - Vi IMproved .*", v1)
endfunc

func Test_version_redirect()
  CheckNotGui
  CheckCanRunGui
  CheckUnix

  call RunVim([], [], '--clean -g --version >Xversion 2>&1')
  call assert_match('Features included', readfile('Xversion')->join())

  call delete('Xversion')
endfunc

" vim: shiftwidth=2 sts=2 expandtab