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vim-patch:9.1.0149: null pointer member access when accessing 'winfixbuf' property

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Problem:  qf_goto_win_with_qfl_file may check if prevwin has 'winfixbuf'
          set without checking if it's valid first.
Solution: Reverse the condition. Add a test, a modeline, and a missing
          CheckFeature. (Searn Dewar)

closes: vim/vim#14140

5131f224da

Co-authored-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>
This commit is contained in:
Colin Kennedy 2024-03-04 21:25:15 -08:00 committed by zeertzjq
parent 141182d6c6
commit e8bc23db62
2 changed files with 20 additions and 1 deletions
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2
src/nvim/quickfix.c
View File

@ -2699,7 +2699,7 @@ static void qf_goto_win_with_qfl_file(int qf_fnum)
// Didn't find it, go to the window before the quickfix
// window, unless 'switchbuf' contains 'uselast': in this case we
// try to jump to the previously used window first.
if ((swb_flags & SWB_USELAST) && !prevwin->w_p_wfb && win_valid(prevwin)) {
if ((swb_flags & SWB_USELAST) && win_valid(prevwin) && !prevwin->w_p_wfb) {
win = prevwin;
} else if (altwin != NULL) {
win = altwin;

19
test/old/testdir/test_winfixbuf.vim
View File

@ -1576,6 +1576,7 @@ endfunc
" Fail vim.cmd if we try to change buffers while 'winfixbuf' is set
func Test_lua_command()
" CheckFeature lua
call s:reset_all_buffers()
enew
@ -3129,3 +3130,21 @@ func Test_wprevious()
call delete("middle")
call delete("last")
endfunc
func Test_quickfix_switchbuf_invalid_prevwin()
call s:reset_all_buffers()
let [l:first, _] = s:make_simple_quickfix()
call assert_notequal(l:first, bufnr())
call assert_equal(1, winnr('$'))
set switchbuf=uselast
split
copen
execute winnr('#') 'quit'
call assert_fails('cfirst', 'E1513:')
set switchbuf&
endfunc
" vim: shiftwidth=2 sts=2 expandtab