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vim-patch:9.0.0260: using freed memory when using 'quickfixtextfunc' recursively

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Problem:    Using freed memory when using 'quickfixtextfunc' recursively.
Solution:   Do not allow for recursion.
d6c67629ed

Cherry-pick Test_qflist_statusmsg() from patch 8.2.4617.
This commit is contained in:
zeertzjq
2022-10-13 11:06:49 +08:00
parent 186c489fd6
commit 5740b3e076
2 changed files with 55 additions and 0 deletions
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7
src/nvim/quickfix.c
View File

@@ -3984,6 +3984,12 @@ static list_T *call_qftf_func(qf_list_T *qfl, int qf_winid, long start_idx, long
{
Callback *cb = &qftf_cb;
list_T *qftf_list = NULL;
static bool recursive = false;
if (recursive) {
return NULL; // this doesn't work properly recursively
}
recursive = true;
// If 'quickfixtextfunc' is set, then use the user-supplied function to get
// the text to display. Use the local value of 'quickfixtextfunc' if it is
@@ -4017,6 +4023,7 @@ static list_T *call_qftf_func(qf_list_T *qfl, int qf_winid, long start_idx, long
tv_dict_unref(dict);
}
recursive = false;
return qftf_list;
}

48
src/nvim/testdir/test_quickfix.vim
View File

@@ -5839,4 +5839,52 @@ func Test_getqflist_wiped_out_buffer()
%bw!
endfunc
" Test for the status message that is displayed when opening a new quickfix
" list
func Test_qflist_statusmsg()
cexpr "1\n2"
cexpr "1\n2\n3\ntest_quickfix.vim:1:msg"
call assert_equal('(4 of 4): msg', v:statusmsg)
call setqflist([], 'f')
%bw!
" When creating a new quickfix list, if an autocmd changes the quickfix list
" in the stack, then an error message should be displayed.
augroup QF_Test
au!
au BufEnter test_quickfix.vim colder
augroup END
cexpr "1\n2"
call assert_fails('cexpr "1\n2\n3\ntest_quickfix.vim:1:msg"', 'E925:')
call setqflist([], 'f')
augroup QF_Test
au!
augroup END
%bw!
augroup QF_Test
au!
au BufEnter test_quickfix.vim caddexpr "4"
augroup END
call assert_fails('cexpr "1\n2\n3\ntest_quickfix.vim:1:msg"', 'E925:')
call setqflist([], 'f')
augroup QF_Test
au!
augroup END
%bw!
endfunc
func Test_quickfixtextfunc_recursive()
func s:QFTfunc(o)
cgete '0'
endfunc
copen
let &quickfixtextfunc = 's:QFTfunc'
cex ""
let &quickfixtextfunc = ''
cclose
endfunc
" vim: shiftwidth=2 sts=2 expandtab