CVE-2021-3903: patch 8.2.3564: invalid memory access when scrolling without valid sc… · vim/vim@777e7c2

@@ -34,14 +34,14 @@ func CountSpaces(type, …)

else

silent exe “normal! `[v`]y”

endif

let g:a=strlen(substitute(@@, '[^ ]', '’, ‘g’))

let g:a = strlen(substitute(@@, '[^ ]', '’, ‘g’))

let &selection = sel_save

let @@ = reg_save

endfunc

func OpfuncDummy(type, …)

" for testing operatorfunc

let g:opt=&linebreak

let g:opt = &linebreak

if a:0 " Invoked from Visual mode, use gv command.

silent exe “normal! gvy”

@@ -52,7 +52,7 @@ func OpfuncDummy(type, …)

endif

" Create a new dummy window

new

let g:bufnr=bufnr(‘%’)

let g:bufnr = bufnr(‘%’)

endfunc

func Test_normal00_optrans()

@@ -987,6 +987,22 @@ func Test_vert_scroll_cmds()

close!

endfunc

func Test_scroll_in_ex_mode()

" This was using invalid memory because w_botline was invalid.

let lines =<< trim END

diffsplit

norm os00(

call writefile([‘done’], ‘Xdone’)

qa!

END

call writefile(lines, ‘Xscript’)

call assert_equal(1, RunVim([], [], ‘–clean -X -Z -e -s -S Xscript’))

call assert_equal([‘done’], readfile(‘Xdone’))

call delete(‘Xscript’)

call delete(‘Xdone’)

endfunc

" Test for the ‘sidescroll’ option

func Test_sidescroll_opt()

new